Talisman Energy Inc. (TSX:TLM) (NYSE:TLM) reported its operating and (unaudited) financial results for 2011. All values in this release are in US$ unless otherwise stated.


--  Cash flow(1) was $3.4 billion, up 16% year over year. Fourth quarter
    cash flow was up 25% over the same period last year, due to higher oil
    prices. 
--  Net income was $776 million, down 18% due to higher DD&A, lower gains on
    asset sales, and higher operating expenses and taxes. 
--  Earnings from operations(1) increased 9% year over year, to $604
    million. 
--  Production averaged 426,000 boe/d, an increase in underlying production
    of 9% over the previous year. 
--  Proved reserves replacement was 157%, at a cost of less than $20/boe.
    The company's three-year replacement cost trend continues to improve. 
--  Shale volumes in North America more than doubled year over year, to 500
    mmcfe/d. 
--  The company commenced drilling in the Duvernay shale play. 
--  The non-operated Kitan project was commissioned and started producing
    oil in October. 
--  The company drilled a successful well in PNG at year-end as part of its
    gas aggregation strategy and continues its active drilling program in
    Colombia. 

(1) The terms "cash flow" and "earnings from operations" are non-GAAP measures. Please see the advisories and reconciliations elsewhere in this news release.

"2011 saw its share of successes as well as challenges for the company," said John A. Manzoni, President and Chief Executive Officer. "North American natural gas prices fell by a third, ending the year below $3, and we saw a significant tax increase in the UK. In addition, our own delivery, particularly in the North Sea, fell short of expectations.

"There were also a large number of positives during the year. Oil prices remained high and helped drive annual cash flow up by 16%. The company grew underlying production by 9% with record shale volumes, two new projects in Southeast Asia and production from Colombia. We have built out our Eagle Ford organization to full capacity from a standing start and started piloting the liquids-rich Duvernay shale, which we will test through this year.

"We have an active exploration and appraisal drilling program in Colombia, which continues to demonstrate success. We drilled two encouraging development wells in Piedemonte and continue to appraise Block 6 and the Akacias discovery in Block 9. In Southeast Asia, gas prices averaged $9.30/mcf in 2011, and the business is expected to grow at an average rate of approximately 8% per year over the next few years.

"Talisman drilled a successful gas condensate well at year-end in Papua New Guinea (PNG), providing ongoing confidence in our gas aggregation strategy. We are also making excellent progress towards bringing in a strategic partner. In the Kurdistan Region of northern Iraq, we have confirmed a substantial natural gas and condensate discovery with our recent Topkhana well.

"We have reduced replacement costs by 50% over the last three years, improving our long-term profitability. In 2011, our reserves replacement cost was less than $20/boe, with costs in North America less than $10/boe. We replaced 157% of production with proved reserves last year.

"In setting our plans for 2012, our expectation is that North American gas prices will remain low, but that oil will be underpinned at $85/bbl or more. Our priorities are profitability versus headline growth, while preserving our balance sheet. We will reduce exploration and development spending from approximately $4.5 billion to around $4 billion, with 80% of this investment directed towards liquids-rich opportunities. Areas of increased investment this year will include the liquids-rich Eagle Ford and Duvernay shale plays, as well as Colombia.

"We will continue to focus our portfolio and seek to divest some non-core assets in our North American business, reduce our exposure in the North Sea, and take decisions on exiting some exploration areas as we drill them over the course of the next 12 months. Talisman's balanced portfolio provides options to redirect capital, and to adjust focus as external conditions change.

"As a result of the reduction in spending and the shift to liquids, we expect underlying production growth of 0 - 5% this year. However, we are setting Talisman up for an increase in liquids production in 2013 and beyond. For example, we expect to grow liquids production in North America from approximately 25,000 bbls/d in 2012 to over 60,000 bbls/d by 2015. And we remain confident in our projection of 5 - 10% average annual production growth through the medium term."

Financial Results

The financial information contained in this release is unaudited. The company expects to file its audited Consolidated Financial Statements for the year ended December 31, 2011, along with the related Management's Discussion and Analysis, Annual Information Form and Annual Report on Form 40-F, by March 5, 2012.

The company announced its capital spending plans for 2012 on January 10, 2012. For additional information, please visit Talisman's website at www.talisman-energy.com.

Financial Results


----------------------------------------------------------------------------
December 31                      Three Months Ended               Year Ended
----------------------------------------------------------------------------
                                   2011        2010         2011        2010
----------------------------------------------------------------------------
                                                                            
Cash flow(2) ($ million)            824         659        3,434       2,954
----------------------------------------------------------------------------
Cash flow per share(2)             0.81        0.65         3.36        2.90
----------------------------------------------------------------------------
                                                                            
Net income (loss) ($                                                        
 million)                          (117)       (350)         776         945
----------------------------------------------------------------------------
Net income (loss) per share       (0.11)      (0.34)        0.76        0.93
----------------------------------------------------------------------------
                                                                            
Earnings from operations(2)                                                 
 ($ million)                        114         129          604         552
----------------------------------------------------------------------------
Earnings from operations per                                                
 share(2)                          0.11        0.13         0.59        0.54
----------------------------------------------------------------------------
                                                                            
Average shares outstanding -                                                
 basic (million)                  1,021       1,018        1,023       1,018
----------------------------------------------------------------------------

(2) The terms "cash flow," "cash flow per share," "earnings from operations," "earnings from operations per share," "exploration and development spending" and "net debt" are non-GAAP measures. Please see the advisories and reconciliations elsewhere in this news release.

Cash flow was $3.4 billion for the year, up from $3.0 billion in 2010, with higher oil prices offsetting higher royalties, operating expenses and cash taxes. Cash flow for the quarter was $824 million versus $659 million a year ago.

Net income was $776 million versus $945 million in 2010, reflecting higher DD&A with new projects in Southeast Asia and the acquisition of producing assets in Colombia; lower gains on asset sales in 2011; higher operating expenses and taxes; and lower mark-to-market gains on derivatives. The company recorded a net loss of $117 million in the fourth quarter, compared to a net loss of $350 million in 2010.

Earnings from operations, which exclude non-operational items, were $604 million in 2011, compared to $552 million in 2010.

Exploration and development spending(2) for the year totaled $4.6 billion. North America accounted for 49% of spending, the North Sea 27%, and Southeast Asia 15%. Year-end net debt(2) was $4.5 billion.

Production


----------------------------------------------------------------------------
December 31                       Three Months Ended              Year Ended
----------------------------------------------------------------------------
                                    2011        2010        2011        2010
----------------------------------------------------------------------------
Oil and liquids (mbbls/d)                                                   
----------------------------------------------------------------------------
North America                         26          21          23          23
                            ------------------------------------------------
North Sea                             91         121          98         113
                            ------------------------------------------------
Southeast Asia                        38          33          34          39
                            ------------------------------------------------
Other                                 25          15          23          14
----------------------------------------------------------------------------
  Total oil and liquids                                                     
   (mbbls/d)                         180         190         178         189
----------------------------------------------------------------------------
Natural gas (mmcf/d)                                                        
----------------------------------------------------------------------------
North America                        969         780         899         778
                            ------------------------------------------------
North Sea                             56         109          52         104
                            ------------------------------------------------
Southeast Asia                       508         469         506         485
                            ------------------------------------------------
Other                                 39           -          34           -
----------------------------------------------------------------------------
  Total natural gas (mmcf/d)       1,572       1,358       1,491       1,367
----------------------------------------------------------------------------
  Total (mboe/d)                     442         417         426         417
----------------------------------------------------------------------------
Assets sold - North America                                                 
 (mboe/d)                              -           8           -          27
----------------------------------------------------------------------------
Production from ongoing                                                     
 operations (mboe/d)                 442         409         426         390
----------------------------------------------------------------------------

Production averaged 426,000 boe/d, an increase of 9% from ongoing operations over the previous year, due principally to increased volumes in North America and Colombia. The increase was partially offset by lower North Sea production.

Netbacks


----------------------------------------------------------------------------
December 31                       Three Months Ended              Year Ended
----------------------------------------------------------------------------
                                    2011        2010        2011        2010
----------------------------------------------------------------------------
Total company netback                                                       
 ($/boe)                           33.81       34.29       37.25       31.42
----------------------------------------------------------------------------
Oil and liquids netback                                                     
 ($/bbl)                           57.66       52.55       60.34       44.94
----------------------------------------------------------------------------
Natural gas netback ($/mcf)         2.90        3.16        3.46        3.36
----------------------------------------------------------------------------

During 2011, the company's average gross netback was $37.25/boe, 19% higher than in 2010 due primarily to higher global oil and liquids prices.

WTI oil prices averaged $95.13/bbl for the year, up 20% from 2010. NYMEX natural gas averaged $4.07/mmbtu, compared to $4.39/mmbtu a year ago.


Gross Proved Reserves(3)                                             Proved 
                                                                   Reserves 
                                                                SEC Pricing 
                                                                      mmboe 
                                                                            
December 31, 2010                                                   1,382.5 
Discoveries, extensions and additions                                 240.7 
Net acquisitions and dispositions                                       9.5 
Price revisions                                                         7.6 
Other revisions                                                         2.7 
Production                                                           (155.4)
December 31, 2011                                                   1,487.6 

(3) The reserves data and other oil and gas information included herein is determined in accordance with SEC standards. Reserves are Talisman share working interest plus royalty interest before royalties payable. Please see advisories elsewhere in this news release.

The company increased gross proved reserves by 8% in 2011. Talisman added 243 million boe of proved reserves (excluding price revisions) compared to production of 155 million boe, replacing 157% of 2011 production. North America accounted for the largest increase in reserves as a result of successful drilling programs in the Marcellus, Montney and Eagle Ford shale plays. Price-related revisions increased proved reserves by 8 million boe, principally related to the company's North Sea operations.

At year-end, North America, Southeast Asia and the North Sea accounted for 48%, 26% and 21% respectively of the company's gross proved reserves. Proved undeveloped reserves accounted for 37% of the company total.

North America

Production


----------------------------------------------------------------------------
December 31                       Three Months Ended              Year Ended
----------------------------------------------------------------------------
                                    2011        2010        2011        2010
----------------------------------------------------------------------------
Shale (mmcfe/d)                                                             
----------------------------------------------------------------------------
  Marcellus                          486         272         413         181
----------------------------------------------------------------------------
  Montney/other                       56          62          56          32
----------------------------------------------------------------------------
  Eagle Ford                          54           8          31           4
----------------------------------------------------------------------------
Total shale (mmcfe/d)                596         342         500         217
----------------------------------------------------------------------------
                                                                            
----------------------------------------------------------------------------
Conventional total (mboe/d)           88          94          90         117
----------------------------------------------------------------------------
Assets sold (mboe/d)                   -           8           -          27
----------------------------------------------------------------------------
                                                                            
----------------------------------------------------------------------------
Total NAO production                                                        
 (mboe/d)                            187         151         173         153
----------------------------------------------------------------------------

We are shifting our focus to the liquids-rich parts of our portfolio. We expect to grow our liquids production in North America from approximately 25,000 bbls/d in 2012, to over 60,000 bbls/d by 2015.

North American exploration and development spending for the year was $2.2 billion, the majority of which was spent in the Marcellus and Eagle Ford shale plays.

Production from ongoing operations increased by 37%, with natural gas production increasing by 41% due principally to successful development in the Marcellus and Eagle Ford. Shale production doubled year over year, averaging 500 mmcfe/d.

In the Marcellus we ended the year with 10 operated rigs. Production is expected to remain relatively flat going forward as we reduce activity in light of low natural gas prices. The company may reduce to as few as three rigs over the course of the year.

In the liquids-rich Eagle Ford we ended the year with 10 operated rigs. In 2012, we expect this to increase to 14 rigs. Production is expected to at least double from approximately 30 mmcfe/d as we build out our drilling programs and secure access to additional egress.

In the Montney, we plan to reduce our program to four rigs, from 11 in the fourth quarter of last year, primarily due to low gas prices. We will continue our program to optimize recovery in the thick Montney shale.

In the second quarter of the year, Talisman acquired a significant amount of acreage in the liquids-rich Duvernay shale in Alberta, where we now hold approximately 360,000 net acres. We commenced a pilot program last year and plan to drill at least six wells in 2012.

The company continued to develop its conventional assets with exploration and development spending of more than $400 million. This year we will focus on expanding our liquids-rich Wild River play, as well as continuing the pilot programs in the Cardium oil and wet gas windows.

Southeast Asia

Production


----------------------------------------------------------------------------
December 31                       Three Months Ended              Year Ended
----------------------------------------------------------------------------
                                    2011        2010        2011        2010
----------------------------------------------------------------------------
Malaysia liquids (mbbls/d)            15          17          17          21
----------------------------------------------------------------------------
Malaysia gas (mmcf/d)                 99         102         113          98
----------------------------------------------------------------------------
Malaysia total (mboe/d)               31          35          36          37
----------------------------------------------------------------------------
Indonesia liquids (mbbls/d)           11          11          10          12
----------------------------------------------------------------------------
Indonesia gas (mmcf/d)               409         367         393         387
----------------------------------------------------------------------------
Indonesia total (mboe/d)              80          72          76          76
----------------------------------------------------------------------------
Vietnam (mboe/d)                       2           2           2           2
----------------------------------------------------------------------------
Australia (mboe/d)                    10           3           5           4
----------------------------------------------------------------------------
Total (mboe/d)                       123         112         119         119
----------------------------------------------------------------------------

Southeast Asia is a self-funding growth area with natural gas prices averaging $9.30/mcf in 2011. The majority of our gas sales contracts in the region are linked to oil price benchmarks. We achieved solid delivery against production and profitability objectives in 2011 and expect more of the same this year.

Natural gas sales totaled 506 mmcf/d, an increase of 4% year over year as a result of improved production efficiency at PM-3 and the startup of Jambi Merang. Overall annual oil and gas production was flat compared to the prior year due to turnarounds, natural declines and a one-time re-determination in 2010 of the South Angsi field in Malaysia. Talisman's exploration and development spending in the region was $695 million.

In Malaysia, overall annual production from ongoing operations was unchanged year over year. In PM-3 CAA, the company focused on optimization initiatives to support strong regional natural gas demand, increasing gas production by 15%.

In Indonesia, fourth quarter gas production was 11% higher over the same period last year, due to Jambi Merang producing for a full quarter and higher uptime at Tangguh. Ongoing facilities development at Corridor continues to secure gas production for long-term supply contracts.

In December, the Suban field was unitized with an adjacent PSC, reducing Talisman's share in the field from 36% to approximately 32%. This reduced year-end reserves and will impact production by approximately 4,500 boe/d; this has been factored into 2012 guidance.

In Vietnam, production averaged 1,900 bbls/d. The Hai Su Trang and Hai Su Den (HST/HSD) development was sanctioned in December 2011, with first production planned for the second half of 2013.

Production in Australia averaged 4,600 bbls/d, an increase of 31% over the previous year, with the commissioning of the Kitan field completed in the fourth quarter.

North Sea

Production (mboe/d)


----------------------------------------------------------------------------
December 31                       Three Months Ended              Year Ended
----------------------------------------------------------------------------
                                    2011        2010        2011        2010
----------------------------------------------------------------------------
UK                                    64          85          71          77
----------------------------------------------------------------------------
Norway                                36          54          35          54
----------------------------------------------------------------------------
Total (mboe/d)                       100         139         106         131
----------------------------------------------------------------------------

We continue to invest in the North Sea to maintain the integrity of a mature set of assets and to improve operational efficiency in order to sustain steady production.

North Sea exploration and development spending was $1.2 billion in 2011, focused on developments at Auk South and Auk North in the UK, Yme in Norway and the Claymore replacement compression project in the UK.

The region contributed $600 million for reinvestment elsewhere in the business in a high netback environment. Production decreased 19% year over year, averaging 106,000 boe/d as a result of extended turnarounds and natural reservoir declines.

In the UK, a planned turnaround at Claymore was extended to complete remediation work in the third quarter; production recommenced early in the fourth quarter. The UK Tartan platform, which was shut down throughout the fourth quarter for safety-related upgrades, is expected to recommence production by the end of the first quarter of 2012.

In Norway, after the annual turnaround was completed at Rev, issues related to the host platform delayed the restart of production until the end of the third quarter. Natural declines also contributed to reduced production in the year. Work to ensure the Yme platform meets contract requirements and Norwegian specifications continues to be behind schedule. Talisman is in discussions with the contractor to agree the best path to improving productivity, and completing the necessary work. We expect to be able to define a path forward during the first quarter of 2012.

International Exploration

The major focus of the exploration program this year will be Colombia, where we are in the process of moving discoveries in CPO-9 and CPE-6 from the evaluation phase into commerciality. We will continue to high grade the exploration portfolio by seeking new organic options and rationalizing others at an earlier stage in the cycle.

In Colombia, production averaged 13,400 boe/d in 2011. In the Piedemonte development, two development wells were successfully drilled with encouraging results, and two additional development wells were spudded in the third quarter. Drilling continues, with two rigs currently in the field.

In the heavy oil region of Colombia, a portion of CPE-6 was converted to an Exploration and Production Contract following the success of our stratigraphic well program. Talisman is participating in a six-well stratigraphic/appraisal drilling program, expected to finish in the early part of 2012. In block CPO-9, the Akacias-1 well has produced over 325,000 boe since May 2011 on a long-term test. In the fourth quarter, the first appraisal well on the Akacias structure was drilled and will be tested this year. We intend to continue appraisal activity on the field and will seek a declaration of commerciality in 2012.

In Papua New Guinea, the Stanley appraisal well confirmed the existence of a significant gas accumulation. The Horizon-operated Elevala-2 well that was drilling over year-end 2011 was side-tracked and then rig released in late January 2012, with initial gas and liquid results that are very encouraging. Talisman remains confident in our target to successfully aggregate 2 - 4 tcf of gas. The company is also making excellent progress to bring in a strategic partner.

In Peru, Talisman spudded the Situche Norte-4X exploration well, which is currently drilling. In the Kurdistan Region of northern Iraq, the Topkhana-1 exploration well finished drilling with a significant gas and condensate discovery, and the Kurdamir-2 exploration well was spudded. In Poland, Talisman drilled the first exploration well of a three-well program and spudded the second well in December. In Indonesia, Talisman drilled the Lempuk-1 deepwater well, which has been plugged and abandoned with gas shows.

Preferred Share Dividend Declaration

The company has declared the first quarterly dividend on its Cumulative Redeemable Rate Reset First Preferred Shares, Series 1 (the "Series 1 Preferred Shares") which were issued last December. A dividend of C$0.3136 per Series 1 Preferred Share will be paid on April 2, 2012 to shareholders of record at the close of business on March 12, 2012.

Talisman Energy Inc. is a global, diversified, upstream oil and gas company, headquartered in Canada. Talisman's three main operating areas are North America, the North Sea and Southeast Asia. The company also has a portfolio of international exploration opportunities. Talisman is committed to conducting business safely, in a socially and environmentally responsible manner, and is included in the Dow Jones Sustainability (North America) Index. Talisman is listed on the Toronto and New York Stock Exchanges under the symbol TLM. Please visit our website at www.talisman-energy.com.

Forward-Looking Information

This news release contains information that constitutes "forward-looking information" or "forward-looking statements" (collectively "forward-looking information") within the meaning of applicable securities legislation. This forward-looking information includes, among others, statements regarding: business strategy, priorities and plans; planned spending reductions; planned capital allocation; production and production growth; expected North American production; planned shift to liquids in North America and timing of such shift; planned drilling and testing in the Duvernay shale; planned rigs in the Marcellus, Montney and Eagle Ford shale; planned development in Wild River and continuing piloting in the Cardium; expected first production at the HST/HSD development; expected recommencement at the Tartan platform; expected timing of plans for Yme; exit from some of the company's exploration areas, divestitures in North America and reducing exposure in the North Sea; planned rigs and drilling in Colombia and intention to seek declaration of commerciality in the Akacias field; target aggregation in Papua New Guinea; and other expectations, beliefs, plans, goals, objectives, assumptions, information and statements about possible future events, conditions, results of operations or performance.

The factors or assumptions on which the forward-looking information is based include: assumptions inherent in current guidance; projected capital investment levels; the flexibility of capital spending plans and the associated sources of funding; the successful and timely implementation of capital projects; the continuation of tax, royalty and regulatory regimes; ability to obtain regulatory and partner approval; commodity price and cost assumptions; and other risks and uncertainties described in the filings made by the company with securities regulatory authorities. The company believes the material factors, expectations and assumptions reflected in the forward-looking information are reasonable but no assurance can be given that these factors, expectations and assumptions will prove to be correct. Forward-looking information for periods past 2012 assumes escalating commodity prices. Closing of any transactions will be subject to receipt of all necessary regulatory approvals and completion of definitive agreements.

Undue reliance should not be placed on forward-looking information. Forward-looking information is based on current expectations, estimates and projections that involve a number of risks which could cause actual results to vary and in some instances to differ materially from those anticipated by Talisman and described in the forward-looking information contained in this news release. The material risk factors include, but are not limited to: the risks of the oil and gas industry, such as operational risks in exploring for, developing and producing crude oil and natural gas, market prices and demand and unpredictable facilities outages; risks and uncertainties involving geology of oil and gas deposits; uncertainty related to securing sufficient egress and markets to meet shale gas production; the uncertainty of reserves and resources estimates, reserves life and underlying reservoir risk; the uncertainty of estimates and projections relating to production, costs and expenses, including decommissioning liabilities; risks related to capital allocation decisions, including potential delays or changes in plans with respect to exploration or development projects or capital expenditures; fluctuations in oil and gas prices, foreign currency exchange rates, interest rates and tax or royalty rates; the outcome and effects of any future acquisitions and dispositions; health, safety, security and environmental risks, including risks related to the possibility of major accidents; environmental regulatory and compliance risks, including with respect to greenhouse gases and hydraulic fracturing; uncertainties as to the availability and cost of credit and other financing and changes in capital markets; risks in conducting foreign operations (for example, civil, political and fiscal instability and corruption); risks related to the attraction, retention and development of personnel; changes in general economic and business conditions; the possibility that government policies, regulations or laws may change or governmental approvals may be delayed or withheld, including with respect to shale gas drilling; and results of the company's risk mitigation strategies, including insurance and any hedging activities.

The foregoing list of risk factors is not exhaustive. Additional information on these and other factors which could affect the company's operations, financial results or strategy are included in Talisman's most recent Annual Information Form. In addition, information is available in the company's other reports on file with Canadian securities regulatory authorities and the United States Securities and Exchange Commission. Forward-looking information is based on the estimates and opinions of the company's management at the time the information is presented. The company assumes no obligation to update forward-looking information should circumstances or management's estimates or opinions change, except as required by law.

Oil and Gas Information

Reserves

National Instrument 51-101 ("NI 51-101") of the Canadian Securities Administrators imposes oil and gas disclosure standards for Canadian public companies engaged in oil and gas activities. Talisman has obtained an exemption from Canadian securities regulatory authorities to permit it to provide certain disclosures in accordance with the US disclosure standards, in addition to the disclosure mandated by NI 51-101, in order to provide for comparability of oil and gas disclosure with that provided by US and other international issuers. Accordingly, the reserves data and certain other oil and gas information included in this news release are disclosed in accordance with US disclosure standards.

A separate exemption granted to Talisman also permits it to disclose internally evaluated reserves data. Any reserves and resources data contained in this news release reflects Talisman's estimates of its reserves and resources. While Talisman annually obtains an independent audit of a portion of its proved and probable reserves, no independent qualified reserves evaluator or auditor was involved in the preparation of the reserves and resources data disclosed in this news release.

Production and Reserves Volumes

Unless otherwise stated, production volumes and reserves estimates are stated on a company interest basis prior to the deduction of royalties and similar payments. In the US, net production volumes and reserve estimates are reported after the deduction of these amounts.

Reserve Replacement

The reserves replacement ratio was calculated by dividing the sum of yearly changes (discoveries, extensions and additions and other revisions, before acquisitions and dispositions and excluding price revisions) to estimated proved oil and gas reserves during 2011 by the company's production for 2011. The company uses reserves replacement ratio as an indicator of the company's ability to replenish annual production volumes and grow its reserves. It should be noted that reserves replacement ratio is a statistical indicator that has limitations. As an annual measure, the ratio is limited because it typically varies widely, based on the extent and timing of new discoveries, project sanctioning and property acquisitions. Its predictive and comparative value is also limited for the same reasons. In addition, since the ratio does not include cost, value or timing of future production of new reserves, it cannot be used as a measure of value creation.

Replacement Costs

In this news release, Talisman discloses a reduction in replacement costs. Replacement costs are used by the company to determine the cost of reserves additions in a period. Talisman's reported replacement costs may not be comparable to similarly titled measures used by other companies. Replacement costs may not reflect full cycle replacement costs. Replacement costs' predictive and comparative value is limited for the aforementioned reasons. Replacement costs are calculated by dividing exploration and development capital spending (including discontinued operations, but excluding midstream) by gross proved reserves additions.

BOE Conversion

Throughout this news release, barrels of oil equivalent (boe) are calculated at a conversion rate of six thousand cubic feet (mcf) of natural gas for one barrel of oil (bbl). This news release also includes references to mcf equivalents (mcfes) which are calculated at a conversion rate of one barrel of oil to six thousand cubic feet of gas. Boes and Mcfes may be misleading, particularly if used in isolation. A boe conversion ratio of 6mcf:1bbl and an mcfe conversion ratio of 1bbl:6mcf are based on an energy equivalence conversion method primarily applicable at the burner tip and do not represent a value equivalency at the well head.

Netbacks

Talisman also discloses netbacks for the company in this news release. Netbacks per boe are calculated by deducting from the sales price associated royalties, operating and transportation costs.

US Dollars and IFRS

Dollar amounts are presented in US dollars, except where otherwise indicated. The financial information in this news release is presented in accordance with International Financial Reporting Standards (IFRS). IFRS differs from generally accepted accounting principles in the US.

Non-GAAP Financial Measures

Included in this news release are references to financial measures commonly used in the oil and gas industry such as cash flow, earnings from operations, capital expenditures including exploration expensed and net debt. These terms are not defined by IFRS. Consequently, these are referred to as non-GAAP measures. Talisman's reported results of such measures may not be comparable to similarly titled measures reported by other companies.

Cash Flow

$ million, except per share amounts


                               Three months ended                Year ended 
                        ----------------------------------------------------
                            Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31, 
                                2011         2010         2011         2010 
----------------------------------------------------------------------------
Cash provided by                                                            
 operating activities            511          492        2,812        3,144 
Changes in non-cash                                                         
 working capital(1)              272           80          397         (367)
Add: Exploration                                                            
 expenditure                      92          142          427          374 
Less: Finance costs                                                         
 (cash)                          (51)         (55)        (202)        (197)
----------------------------------------------------------------------------
Cash flow                        824          659        3,434        2,954 
----------------------------------------------------------------------------
Cash flow per share             0.81         0.65         3.36         2.90 
----------------------------------------------------------------------------
Diluted cash flow per                                                       
 share                          0.81         0.65         3.31         2.90 
----------------------------------------------------------------------------

(1) The three month period and year ended December 31, 2011 includes a provision for a doubtful account (net of tax) of $22 million.

Cash flow, as commonly used in the oil and gas industry, represents net income before exploration costs, DD&A, future taxes and other non-cash expenses. Cash flow is used by the company to assess operating results between years and between peer companies using different accounting policies. Cash flow should not be considered an alternative to, or more meaningful than, cash provided by operating, investing and financing activities or net income as determined in accordance with IFRS as an indicator of the company's performance or liquidity. Cash flow per share is cash flow divided by the average number of common shares outstanding during the period. Diluted cash flow per share is cash flow divided by the diluted number of common shares outstanding during the period. A reconciliation of cash provided by operating activities to cash flow is provided above.

Earnings from Operations

$ million, except per share amounts


                        ----------------------------------------------------
                               Three months ended                Year ended 
----------------------------------------------------------------------------
                            Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31, 
                                2011         2010         2011         2010 
----------------------------------------------------------------------------
Net income (loss)               (117)        (350)         776          945 
----------------------------------------------------------------------------
Loss (gain) on disposal                                                     
 and income from assets                                                     
 sold (tax adjusted)              11          (75)        (141)        (550)
Unrealized loss (gain)                                                      
 on financial                                                               
 instruments (tax                                                           
 adjusted)(1)                     39           64          (63)        (250)
Share-based payments(tax                                                    
 adjusted)(2)                     35          313         (303)         279 
Foreign exchange on debt                                                    
 (tax adjusted)                   (1)           -           (1)           - 
Impairment losses (tax                                                      
 adjusted)                        65          126          104          158 
Provision for doubtful                                                      
 account (tax adjusted)           22            -           22            - 
Deferred tax                                                                
 adjustments(3)                   60           51          210          (30)
----------------------------------------------------------------------------
Earnings from operations         114          129          604          552 
----------------------------------------------------------------------------
Earnings from operations                                                    
 per share                      0.11         0.13         0.59         0.54 
----------------------------------------------------------------------------
Diluted earnings from                                                       
 operations per share           0.11         0.13         0.58         0.54 
----------------------------------------------------------------------------

1.  Unrealized loss (gain) on financial instruments relates to the change in
    the period of the mark-to-market value of the company's outstanding
    commodity derivatives that are classified as held-for-trading financial
    instruments. 
2.  Share-based payments relate principally to the mark-to-market value of
    the company's outstanding stock options and cash units at December 31.
    The company uses the Black-Scholes option pricing model to estimate the
    fair value of its share-based payment plans. 
3.  Deferred tax adjustments include deferred taxes relating to unrealized
    foreign exchange gains and losses associated with the impact of
    fluctuations in the Canadian dollar on foreign denominated debt,
    intercompany loans and tax pool balances, as well as a remeasurement of
    UK deferred tax assets and liabilities in response to a statutory rate
    change. 

Earnings from operations are calculated by adjusting the company's net income (loss) per the financial statements, for certain items of a non-operational nature, on an after tax basis. The company uses this information to evaluate performance of core operational activities on a comparable basis between periods. Earnings from operations should not be considered an alternative to, or more meaningful than, net income (loss) as determined in accordance with IFRS as an indicator of the company's performance or liquidity. Earnings from operations per share are earnings from operations divided by the average number of common shares outstanding during the period. Diluted earnings from operations per share are earnings from operations divided by the diluted number of common shares outstanding during the period. A reconciliation of net income (loss) to earnings from operations is provided above.

Capital Expenditure Including Exploration Expensed

$ million


                                  Three months ended              Year ended
                            ------------------------------------------------
                                Dec. 31,    Dec. 31,    Dec. 31,    Dec. 31,
                                    2011        2010        2011        2010
                            ------------------------------------------------
                                                                            
Exploration, development and                                                
 other                             1,287       1,095       4,303       3,566
Exploration expensed                  92         142         427         374
                            ------------------------------------------------
Capital expenditure                                                         
 including exploration                                                      
 expensed                          1,379       1,237       4,730       3,940
                            ------------------------------------------------

Capital expenditure including exploration expensed is calculated by adjusting the capital expenditure per the financial statements for exploration costs that were expensed as incurred.

Exploration and Development Expenditure Including Exploration Expensed

$ million


                                  Three months ended              Year ended
                            ------------------------------------------------
                                Dec. 31,    Dec. 31,    Dec. 31,    Dec. 31,
                                    2011        2010        2011        2010
                            ------------------------------------------------
                                                                            
Exploration and development        1,202       1,059       4,142       3,192
Exploration expensed                  92         142         427         374
                            ------------------------------------------------
Exploration and development                                                 
 expenditure including                                                      
 exploration expensed              1,294       1,201       4,569       3,566
                            ------------------------------------------------

North America Exploration and Development Expenditure Including Exploration Expensed

$ million


                                  Three months ended              Year ended
                            ------------------------------------------------
                                Dec. 31,    Dec. 31,    Dec. 31,    Dec. 31,
                                    2011        2010        2011        2010
                            ------------------------------------------------
                                                                            
Exploration and development          663         595       2,155       1,700
Exploration expensed                  16           7          70          52
                            ------------------------------------------------
Exploration and development                                                 
 expenditure including                                                      
 exploration expensed                679         602       2,225       1,752
                            ------------------------------------------------

North Sea Exploration and Development Expenditure Including Exploration Expensed

$ million


                                  Three months ended              Year ended
                            ------------------------------------------------
                                Dec. 31,    Dec. 31,    Dec. 31,    Dec. 31,
                                    2011        2010        2011        2010
                            ------------------------------------------------
                                                                            
Exploration and development          260         228       1,205       1,117
Exploration expensed                  12          14          40          47
                            ------------------------------------------------
Exploration and development                                                 
 expenditure including                                                      
 exploration expensed                272         242       1,245       1,164
                            ------------------------------------------------

Southeast Asia Exploration and Development Expenditure Including Exploration Expensed

$ million


                                  Three months ended              Year ended
                            ------------------------------------------------
                                Dec. 31,    Dec. 31,    Dec. 31,    Dec. 31,
                                    2011        2010        2011        2010
                            ------------------------------------------------
                                                                            
Exploration and development          181         154         487         442
Exploration expensed                  36          53         208         116
                            ------------------------------------------------
Exploration and development                                                 
 expenditure including                                                      
 exploration expensed                217         207         695         558
                            ------------------------------------------------

Exploration and development expenditure including exploration expensed is calculated by adjusting the exploration and development expenditure per the financial statements for exploration costs that were expensed as incurred.

Net Debt

$ million


                                                                            
                                             December 31,      December 31, 
                                                     2011              2010 
----------------------------------------------------------------------------
Long-term debt                                      4,895             4,204 
Bank indebtedness                                      60                 2 
Cash and cash equivalents                            (474)           (1,655)
----------------------------------------------------------------------------
Net debt                                            4,481             2,551 
----------------------------------------------------------------------------

Net debt is calculated by adjusting the company's long-term debt per the financial statements for bank indebtedness, cash and cash equivalents. The company uses this information to assess its true debt position and eliminate the impact of timing differences.


                                                                            
Talisman Energy Inc.                                                        
Highlights                                                                  
(unaudited)                                                                 
                                                                            
                                 Three months ended               Year ended
                                        December 31              December 31
                                   2011        2010         2011        2010
----------------------------------------------------------------------------
Financial                                                                   
(millions of US$ unless                                                     
 otherwise stated)                                                          
Cash flow (1)                       824         659        3,434       2,954
Net income (loss)                  (117)       (350)         776         945
Capital expenditure                                                         
 including exploration                                                      
 expensed (1)                     1,379       1,237        4,730       3,940
Per common share (US$)                                                      
  Cash flow (1)                    0.81        0.65         3.36        2.90
  Net income (loss)               (0.11)      (0.34)        0.76        0.93
----------------------------------------------------------------------------
Production                                                                  
(Daily Average - Gross)                                                     
Oil and liquids (bbls/d)                                                    
  North America                  25,669      20,773       23,160      23,133
  North Sea                      90,896     120,940       97,507     113,047
  Southeast Asia                 38,173      33,681       34,372      38,481
  Other                          24,810      14,972       22,697      13,983
----------------------------------------------------------------------------
Total oil and liquids           179,548     190,366      177,736     188,644
----------------------------------------------------------------------------
Natural gas (mmcf/d)                                                        
  North America                     969         780          899         778
  North Sea                          56         109           52         104
  Southeast Asia                    508         469          506         485
  Other                              39           -           34           -
----------------------------------------------------------------------------
Total natural gas                 1,572       1,358        1,491       1,367
----------------------------------------------------------------------------
Total mboe/d (2)                    442         417          426         417
----------------------------------------------------------------------------
Prices                                                                      
Oil and liquids (US$/bbl)                                                   
  North America                   78.73       62.93        75.19       62.59
  North Sea                      108.82       87.08       110.75       80.13
  Southeast Asia                 110.35       92.90       115.82       80.54
  Other                          103.34       97.42       110.32       82.69
----------------------------------------------------------------------------
Total oil and liquids            104.09       86.27       107.04       78.19
----------------------------------------------------------------------------
Natural gas (US$/mcf)                                                       
  North America                    3.41        4.37         3.93        4.79
  North Sea                        8.81        7.57         8.62        6.35
  Southeast Asia                   9.29        7.13         9.30        6.72
  Other                            4.22           -         4.22           -
----------------------------------------------------------------------------
Total natural gas                  5.52        5.58         5.92        5.59
----------------------------------------------------------------------------
Total (US$/boe) (2)               62.00       57.60        65.35       53.80
----------------------------------------------------------------------------

(1) Cash flow, capital expenditure including exploration expensed and cash flow per share are non-GAAP measures.

(2) Barrels of oil equivalent (boe) is calculated at a conversion rate of six thousand cubic feet (mcf) of natural gas for one barrel of oil.


Talisman Energy Inc.                                                        
Condensed Consolidated Balance Sheets                                       
(unaudited)                                                                 
                                                                            
                                        December 31, December 31, January 1,
(millions of US$)                               2011         2010       2010
----------------------------------------------------------------------------
                                                                            
Assets                                                                      
Current                                                                     
  Cash and cash equivalents                      474        1,655      1,628
  Accounts receivable                          1,550        1,287      1,216
  Risk management                                 42          119         29
  Inventories                                    164          144        141
  Prepaid expenses                                24           20          8
  Assets held for sale                             -            -         22
----------------------------------------------------------------------------
                                               2,254        3,225      3,044
----------------------------------------------------------------------------
                                                                            
Other assets                                     101          667         74
Investments                                      395          121         34
Risk management                                   24           25         40
Goodwill                                       1,317        1,164      1,183
Property, plant and equipment                 15,909       13,266     13,254
Exploration and evaluation assets              3,954        3,442      2,212
Deferred tax assets                              272          184        147
----------------------------------------------------------------------------
                                              21,972       18,869     16,944
----------------------------------------------------------------------------
Total assets                                  24,226       22,094     19,988
----------------------------------------------------------------------------
                                                                            
Liabilities                                                                 
Current                                                                     
  Bank indebtedness                               60            2         35
  Accounts payable and accrued                                              
   liabilities                                 2,622        2,722      2,040
  Risk management                                  -          117        266
  Income and other taxes payable                 371          513        341
  Current portion of long-term debt              410          359         10
  Liabilities associated with assets                                        
   held for sale                                   -            -          7
----------------------------------------------------------------------------
                                               3,463        3,713      2,699
----------------------------------------------------------------------------
                                                                            
Decommissioning liabilities                    2,982        2,580      2,003
Other long-term obligations                      346          326        316
Risk management                                    -            -          6
Long-term debt                                 4,485        3,845      3,601
Deferred tax liabilities                       2,932        2,435      2,516
----------------------------------------------------------------------------
                                              10,745        9,186      8,442
----------------------------------------------------------------------------
                                                                            
Shareholders' equity                                                        
Common shares                                  1,561        1,480      1,401
Preferred Shares                                 191            -          -
Contributed surplus                              186          108        117
Retained earnings                              7,292        6,819      6,135
Accumulated other comprehensive income           788          788      1,194
----------------------------------------------------------------------------
                                              10,018        9,195      8,847
----------------------------------------------------------------------------
Total liabilities and shareholders'                                         
 equity                                       24,226       22,094     19,988
----------------------------------------------------------------------------


Talisman Energy Inc.                                                        
Condensed Consolidated Statements of Income                                 
(unaudited)                                                                 
                                                                            
                                 Three months ended              Year ended 
                                        December 31             December 31 
(millions of US$)                  2011        2010        2011        2010 
----------------------------------------------------------------------------
                                                                            
Revenue                                                                     
  Sales                           2,062       1,835       8,194       6,875 
  Other income                       20          28          78         107 
----------------------------------------------------------------------------
Total revenue and other                                                     
 income                           2,082       1,863       8,272       6,982 
----------------------------------------------------------------------------
                                                                            
Expenses                                                                    
  Operating                         630         474       2,190       1,890 
  Transportation                     57          55         216         221 
  General and administrative        128         102         431         371 
  Depreciation, depletion                                                   
   and amortization                 546         447       1,949       1,788 
  Impairment                        124         211         226         301 
  Dry hole                           68          42         241         113 
  Exploration                        92         142         427         374 
  Finance costs                      69          73         278         276 
  Share-based payments                                                      
   expense (recovery)                35         236        (310)        212 
  (Gain) loss on held-for-                                                  
   trading financial                                                        
   instruments                       79         124         210         (87)
  (Gain) loss on asset                                                      
   disposals                         14         (93)       (192)       (520)
  Other, net                        118          38         161          72 
----------------------------------------------------------------------------
Total expenses                    1,960       1,851       5,827       5,011 
----------------------------------------------------------------------------
Income before taxes                 122          12       2,445       1,971 
----------------------------------------------------------------------------
Taxes                                                                       
  Current income tax                290         438       1,441       1,136 
  Deferred income tax                                                       
   (recovery)                       (51)        (76)        228        (110)
----------------------------------------------------------------------------
                                    239         362       1,669       1,026 
----------------------------------------------------------------------------
Net income (loss)                  (117)       (350)        776         945 
----------------------------------------------------------------------------
                                                                            
                                                                            
Per common share (US$):                                                     
  Net income (loss)               (0.11)      (0.34)       0.76        0.93 
  Diluted net income (loss)       (0.11)      (0.34)       0.38        0.93 
----------------------------------------------------------------------------
Weighted average number of                                                  
 common shares outstanding                                                  
 (millions)                                                                 
  Basic                           1,021       1,018       1,023       1,018 
  Diluted                         1,021       1,018       1,038       1,018 
----------------------------------------------------------------------------


Talisman Energy Inc.                                                        
Condensed Consolidated Statements of Cash Flows                             
(unaudited)                                                                 
                                                                            
                                 Three months ended              Year ended 
                                        December 31             December 31 
(millions of US$)                  2011        2010        2011        2010 
----------------------------------------------------------------------------
                                                                            
Operating activities                                                        
Net income (loss)                  (117)       (350)        776         945 
Add: Finance costs (cash and                                                
 non-cash)                           69          73         278         276 
Dividends from equity                                                       
 investments                          -           -           9           - 
Items not involving cash            809         849       2,124       1,556 
----------------------------------------------------------------------------
                                    761         572       3,187       2,777 
Changes in non-cash working                                                 
 capital                           (250)        (80)       (375)        367 
----------------------------------------------------------------------------
Cash provided by operating                                                  
 activities                         511         492       2,812       3,144 
----------------------------------------------------------------------------
                                                                            
Investing activities                                                        
Capital expenditures                                                        
  Exploration, development                                                  
   and other                     (1,287)     (1,095)     (4,303)     (3,566)
  Corporate acquisitions,                                                   
   net of cash acquired               -           -        (156)       (183)
  Property acquisitions              (6)       (904)       (737)     (1,340)
Proceeds of resource                                                        
 property dispositions               (7)        536         527       2,194 
Repayment of note receivable          -           -          40           - 
Acquisition deposit                   -         (18)         18        (630)
Investments                           -           -          54           - 
Changes in non-cash working                                                 
 capital                             25         177          18         274 
----------------------------------------------------------------------------
Cash used in investing                                                      
 activities                      (1,275)     (1,304)     (4,539)     (3,251)
----------------------------------------------------------------------------
                                                                            
Financing activities                                                        
Long-term debt repaid                (3)          -        (313)        (10)
Long-term debt issued               812         595       1,044         595 
Common shares issued                  5          43         114          55 
Common shares purchased              (4)        (26)        (94)        (75)
Preferred shares issued             191           -         191           - 
Finance costs (cash)                (51)        (55)       (202)       (197)
Common share dividends             (139)       (127)       (277)       (249)
Deferred credits and other           (1)         10          (9)         (2)
Changes in non-cash working                                                 
 capital                            (21)          2          11          (1)
----------------------------------------------------------------------------
Cash provided by financing                                                  
 activities                         789         442         465         116 
----------------------------------------------------------------------------
Effect of translation on                                                    
 foreign currency cash and                                                  
 cash equivalents                    (3)         10          23          51 
----------------------------------------------------------------------------
Net increase (decrease) in                                                  
 cash and cash equivalents           22        (360)     (1,239)         60 
Cash and cash equivalents                                                   
 net of bank indebtedness,                                                  
 beginning of period                392       2,013       1,653       1,593 
----------------------------------------------------------------------------
Cash and cash equivalents                                                   
 net of bank indebtedness,                                                  
 end of period                      414       1,653         414       1,653 
----------------------------------------------------------------------------
                                                                            
Cash and cash equivalents           474       1,655         474       1,655 
Bank indebtedness                   (60)         (2)        (60)         (2)
----------------------------------------------------------------------------
Cash and cash equivalents                                                   
 net of bank indebtedness,                                                  
 end of period                      414       1,653         414       1,653 
----------------------------------------------------------------------------


Items not involving cash are                                                
 as follows:                                                                
                                                                            
                                                                            
                                 Three months ended              Year ended 
                                        December 31             December 31 
(millions of US$)                  2011        2010        2011        2010 
----------------------------------------------------------------------------
Depreciation, depletion and                                                 
 amortization                       546         447       1,949       1,788 
Impairment, net of reversals        124         211         226         301 
Dry hole                             68          42         241         113 
Share-based payments expense                                                
 (recovery)                          34         207        (324)        158 
(Gain) loss on asset                                                        
 disposals                           14         (93)       (192)       (520)
Unrealized (gain) loss on                                                   
 held-for-trading financial                                                 
 instruments                         40          73         (61)       (258)
Deferred income tax                 (51)        (76)        228        (110)
Foreign exchange                     (1)          8         (11)          3 
PP&E derecognition                    7           8          26          28 
Other                                28          22          42          53 
----------------------------------------------------------------------------
                                    809         849       2,124       1,556 
----------------------------------------------------------------------------


Talisman Energy Inc.                                                        
Segmented Information                                                       
(unaudited)                                                                 
                                                                            
                                                                            
                      North America (1)                North Sea (2)        
                ------------------------------------------------------------
                                                                            
                   Three months                   Three months              
                          ended    Year ended            ended    Year ended
                    December 31   December 31      December 31   December 31
                ------------------------------------------------------------
(millions of                                                                
 US$)              2011    2010   2011   2010     2011    2010   2011   2010
----------------------------------------------------------------------------
Revenue                                                                     
Sales               419     385  1,695  1,679      966   1,014  4,074  3,526
Other income         18      22     63     85        2       6     14     21
----------------------------------------------------------------------------
Total revenue                                                               
 and other                                                                  
 income             437     407  1,758  1,764      968   1,020  4,088  3,547
----------------------------------------------------------------------------
Segmented                                                                   
 expenses                                                                   
Operating           120     120    454    487      376     259  1,292  1,096
Transportation       19      12     68     59       22      26     84     95
DD&A                243     192    852    717      169     177    671    766
Impairment          129      91    129    116       11      99    113    164
Dry hole              2       4      6    (11)      31       5    106     70
Exploration          16       7     70     52       12      14     40     47
Other                15       3     22    (25)      83      58    105     91
----------------------------------------------------------------------------
Total segmented                                                             
 expenses           544     429  1,601  1,395      704     638  2,411  2,329
----------------------------------------------------------------------------
Segmented income                                                            
 (loss) before                                                              
 taxes             (107)    (22)   157    369      264     382  1,677  1,218
----------------------------------------------------------------------------
Non-segmented                                                               
 expenses                                                                   
General and                                                                 
 administrative                                                             
Finance costs                                                               
Share-based                                                                 
 payments                                                                   
 recovery                                                                   
Currency                                                                    
 translation                                                                
(Gain) loss on                                                              
 held-for-                                                                  
 trading                                                                    
 financial                                                                  
 instruments                                                                
(Gain) loss on                                                              
 asset disposals                                                            
----------------------------------------------------------------------------
Total non-                                                                  
 segmented                                                                  
 expenses                                                                   
----------------------------------------------------------------------------
Income before                                                               
 taxes                                                                      
----------------------------------------------------------------------------
Capital                                                                     
 expenditures                                                               
Exploration          30      48    198    216       23      21    128    133
Development         636     544  1,960  1,481      237     207  1,077    984
Midstream            (3)      3     (3)     3        -       -      -      -
----------------------------------------------------------------------------
Exploration and                                                             
 development        663     595  2,155  1,700      260     228  1,205  1,117
----------------------------------------------------------------------------
Acquisitions                                                                
Proceeds on                                                                 
 dispositions                                                               
Other non-                                                                  
 segmented                                                                  
----------------------------------------------------------------------------
Net capital                                                                 
 expenditures                                                               
----------------------------------------------------------------------------
Property, plant                                                             
 and equipment                   6,740  5,351                   5,809  5,368
Exploration and                                                             
 evaluation                                                                 
 assets                          2,370  1,886                     538    540
Goodwill                           140    149                     866    866
Other                              987  2,389                     645    920
----------------------------------------------------------------------------
Segmented assets                10,237  9,775                   7,858  7,694
Non-segmented                                                               
 assets                                                                     
----------------------------------------------------------------------------
Total assets                                                                
----------------------------------------------------------------------------
Decommissioning                                                             
 liabilities                       394    210                   2,390  2,196
----------------------------------------------------------------------------
                                                                            
                                                                            
                                                                            
1. North America                    2011        2010        2011        2010
----------------------------------------------------------------------------
Canada                               268         313       1,127       1,454
US                                   169          94         631         310
----------------------------------------------------------------------------
Total revenue and other                                                     
 income                              437         407       1,758       1,764
----------------------------------------------------------------------------
Canada                                                     3,937       3,920
US                                                         2,803       1,431
----------------------------------------------------------------------------
Property, plant and                                                         
 equipment                                                 6,740       5,351
----------------------------------------------------------------------------
Canada                                                     1,207         685
US                                                         1,163       1,201
----------------------------------------------------------------------------
Exploration and evaluation                                                  
 assets                                                    2,370       1,886
----------------------------------------------------------------------------
                                                                            
2. North Sea                        2011        2010        2011        2010
----------------------------------------------------------------------------
UK                                   656         644       2,835       2,190
Norway                               312         376       1,253       1,357
----------------------------------------------------------------------------
Total revenue and other                                                     
 income                              968       1,020       4,088       3,547
----------------------------------------------------------------------------
UK                                                         3,927       3,763
Norway                                                     1,882       1,605
----------------------------------------------------------------------------
Property, plant and                                                         
 equipment                                                 5,809       5,368
----------------------------------------------------------------------------
UK                                                           210         260
Norway                                                       328         280
----------------------------------------------------------------------------
Exploration and evaluation                                                  
 assets                                                      538         540
----------------------------------------------------------------------------


Talisman Energy Inc.                                                        
Segmented Information                                                       
(unaudited)                                                                 
                                                                            
                                                                            
                        Southeast Asia (3)              Other (4)           
                   -------------------------------------------------------  
                                                                            
                    Three months                Three months                
                           ended     Year ended        ended    Year ended  
                     December 31    December 31  December 31   December 31  
                   ---------------------------------------------------------
(millions of US$)    2011   2010   2011    2010   2011  2010    2011  2010  
----------------------------------------------------------------------------
Revenue                                                                     
Sales                 528    375  1,882   1,476    149    61     543   194  
Other income            -      -      1       1      -     -       -     -  
----------------------------------------------------------------------------
Total revenue and                                                           
 other income         528    375  1,883   1,477    149    61     543   194  
----------------------------------------------------------------------------
Segmented expenses                                                          
Operating             112     88    372     280     22     7      72    27  
Transportation         13     16     55      60      3     1       9     7  
DD&A                   93     70    305     277     41     8     121    28  
Impairment            (16)    21    (16)     21      -     -       -     -  
Dry hole               35     27    127      31      -     6       2    23  
Exploration            36     53    208     116     28    68     109   159  
Other                  12     (9)    17      16      9     -      29     5  
----------------------------------------------------------------------------
Total segmented                                                             
 expenses             285    266  1,068     801    103    90     342   249  
----------------------------------------------------------------------------
Segmented income                                                            
 (loss) before                                                              
 taxes                243    109    815     676     46   (29)    201   (55) 
----------------------------------------------------------------------------
Non-segmented                                                               
 expenses                                                                   
General and                                                                 
 administrative                                                             
Finance costs                                                               
Share-based                                                                 
 payments expense                                                           
 (recovery)                                                                 
Currency                                                                    
 translation                                                                
(Gain) loss on                                                              
 held-for-trading                                                           
 financial                                                                  
 instruments                                                                
(Gain) loss on                                                              
 asset disposals                                                            
----------------------------------------------------------------------------
Total non-segmented                                                         
 expenses                                                                   
----------------------------------------------------------------------------
Income before taxes                                                         
----------------------------------------------------------------------------
Capital                                                                     
 expenditures                                                               
Exploration            68     53    257     125     56    61     138   119  
Development           113    101    230     317     42    21     157    95  
Midstream               -      -      -       -      -     -       -     -  
----------------------------------------------------------------------------
Exploration and                                                             
 development          181    154    487     442     98    82     295   214  
----------------------------------------------------------------------------
Acquisitions                                                                
Proceeds on                                                                 
 dispositions                                                               
Other non-segmented                                                         
----------------------------------------------------------------------------
Net capital                                                                 
 expenditures                                                               
----------------------------------------------------------------------------
Property, plant and                                                         
 equipment                        2,501   2,296                  859   251  
Exploration and                                                             
 evaluation assets                  498     627                  548   389  
Goodwill                            149     149                  162     -  
Other                               560     628                  788   141  
----------------------------------------------------------------------------
Segmented assets                  3,708   3,700                2,357   781  
Non-segmented                                                               
 assets                                                                     
----------------------------------------------------------------------------
Total assets                                                                
----------------------------------------------------------------------------
Decommissioning                                                             
 liabilities                        208     189                   43    15  
----------------------------------------------------------------------------

Talisman Energy Inc.                                                        
Segmented Information                                                       
(unaudited)                                                                 
                                                                            
                                                                            
                                                                      Total 
                   -------------------------------------------------------- 
                                                                            
                                         Three months ended      Year ended 
                                                December 31     December 31 
                   ---------------------------------------------------------
(millions of US$)                              2011    2010    2011    2010 
----------------------------------------------------------------------------
Revenue                                                                     
Sales                                         2,062   1,835   8,194   6,875 
Other income                                     20      28      78     107 
----------------------------------------------------------------------------
Total revenue and                                                           
 other income                                 2,082   1,863   8,272   6,982 
----------------------------------------------------------------------------
Segmented expenses                                                          
Operating                                       630     474   2,190   1,890 
Transportation                                   57      55     216     221 
DD&A                                            546     447   1,949   1,788 
Impairment                                      124     211     226     301 
Dry hole                                         68      42     241     113 
Exploration                                      92     142     427     374 
Other                                           119      52     173      87 
----------------------------------------------------------------------------
Total segmented                                                             
 expenses                                     1,636   1,423   5,422   4,774 
----------------------------------------------------------------------------
Segmented income                                                            
 (loss) before                                                              
 taxes                                          446     440   2,850   2,208 
----------------------------------------------------------------------------
Non-segmented                                                               
 expenses                                                                   
General and                                                                 
 administrative                                 128     102     431     371 
Finance costs                                    69      73     278     276 
Share-based                                                                 
 payments expense                                                           
 (recovery)                                      35     236    (310)    212 
Currency                                                                    
 translation                                     (1)    (14)    (12)    (15)
(Gain) loss on                                                              
 held-for-trading                                                           
 financial                                                                  
 instruments                                     79     124     210     (87)
(Gain) loss on                                                              
 asset disposals                                 14     (93)   (192)   (520)
----------------------------------------------------------------------------
Total non-segmented                                                         
 expenses                                       324     428     405     237 
----------------------------------------------------------------------------
Income before taxes                             122      12   2,445   1,971 
----------------------------------------------------------------------------
Capital                                                                     
 expenditures                                                               
Exploration                                     177     183     721     593 
Development                                   1,028     873   3,424   2,877 
Midstream                                        (3)      3      (3)      3 
----------------------------------------------------------------------------
Exploration and                                                             
 development                                  1,202   1,059   4,142   3,473 
----------------------------------------------------------------------------
Acquisitions                                   (197)    898   1,319   1,530 
Proceeds on                                                                 
 dispositions                                     5    (538)   (569) (2,273)
Other non-segmented                              82      32     159      78 
----------------------------------------------------------------------------
Net capital                                                                 
 expenditures                                 1,092   1,451   5,051   2,808 
----------------------------------------------------------------------------
Property, plant and                                                         
 equipment                                                   15,909  13,266 
Exploration and                                                             
 evaluation assets                                            3,954   3,442 
Goodwill                                                      1,317   1,164 
Other                                                         2,980   4,078 
----------------------------------------------------------------------------
Segmented assets                                             24,160  21,950 
Non-segmented                                                               
 assets                                                          66     144 
----------------------------------------------------------------------------
Total assets                                                 24,226  22,094 
----------------------------------------------------------------------------
Decommissioning                                                             
 liabilities                                                  3,035   2,610 
----------------------------------------------------------------------------
                                                                            
                                                                            
3. Southeast Asia                   2011        2010        2011        2010
----------------------------------------------------------------------------
Indonesia                            259         201         974         839
Malaysia                             153         123         565         481
Vietnam                               40          11         183          52
Australia                             76          40         161         105
----------------------------------------------------------------------------
Total revenue and other                                                     
 income                              528         375       1,883       1,477
----------------------------------------------------------------------------
Indonesia                                                  1,023         986
Malaysia                                                     883       1,053
Vietnam                                                      297          19
Papua New Guinea                                              47          26
Australia                                                    251         212
----------------------------------------------------------------------------
Property, plant and                                                         
 equipment                                                 2,501       2,296
----------------------------------------------------------------------------
Indonesia                                                     12          27
Malaysia                                                      41          29
Vietnam                                                        5         253
Papua New Guinea                                             440         318
----------------------------------------------------------------------------
Exploration and evaluation                                                  
 assets                                                      498         627
----------------------------------------------------------------------------
                                                                            
4. Other                            2011        2010        2011        2010
----------------------------------------------------------------------------
Algeria                               61          61         256         194
Colombia                              88           -         287           -
----------------------------------------------------------------------------
Total revenue and other                                                     
 income                              149          61         543         194
----------------------------------------------------------------------------
Algeria                                                      284         251
Colombia                                                     575           -
----------------------------------------------------------------------------
Property, plant and                                                         
 equipment                                                   859         251
----------------------------------------------------------------------------
Colombia                                                      75          49
Kurdistan                                                    303         239
Peru                                                         133          98
Other                                                         37           3
----------------------------------------------------------------------------
Exploration and evaluation                                                  
 assets                                                      548         389
----------------------------------------------------------------------------

RESERVE ESTIMATES

The following tables sets forth Talisman's reserves as at December 31, 2011. The reserves estimates included in these tables were prepared using the standards of the US Securities and Exchange Commission ("SEC"), which requires that proved and probable reserves be estimated using existing economic conditions. The price used for calculating reserves is an unweighted arithmetic average of the historic first-day-of-the-month price for each month within the completed 12-month period unless the prices are defined by contractual obligations (excluding escalations based on future conditions).


SEC Continuity of Gross Reserves (1,7)                                      
                                                                            
                                                                            
                             Canada        US        UK    Norway Indonesia 
----------------------------------------------------------------------------
Oil and Liquids (mmbbls)                                                    
Total Proved                                                                
                          --------------------------------------------------
Proved reserves at                                                          
 December 31, 2008 (11)       154.3         -     216.7      56.6      32.4 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                     4.8         -       5.2       1.1      (1.7)
                          --------------------------------------------------
Purchase of reserves            0.2         -         -         -       1.0 
                          --------------------------------------------------
Sale of reserves              (45.7)        -      (0.2)     (4.0)        - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                        -         -      77.0      14.5       1.1 
                          --------------------------------------------------
2009 Production               (12.6)        -     (31.2)    (12.3)     (4.2)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2009            101.0         -     267.5      55.9      28.6 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                     5.0       3.4       6.8       9.7       3.4 
                          --------------------------------------------------
Purchase of reserves              -       1.2         -         -       3.5 
                          --------------------------------------------------
Sale of reserves              (18.5)     (0.2)        -         -         - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                      0.2         -      18.0       1.8       0.9 
                          --------------------------------------------------
2010 Production                (8.4)     (0.1)    (27.0)    (14.2)     (4.3)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2010             79.3       4.3     265.3      53.2      32.1 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                     3.1      18.3      (4.2)      2.3       1.0 
                          --------------------------------------------------
Purchase of reserves              -       0.7         -         -         - 
                          --------------------------------------------------
Sale of reserves               (0.3)        -         -         -         - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                     (1.7)      0.6      10.7       7.2      (0.2)
                          --------------------------------------------------
2011 Production                (7.7)     (0.8)    (25.5)    (10.0)     (4.0)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2011             72.7      23.1     246.3      52.7      28.9 
----------------------------------------------------------------------------
Proved developed                                                            
                          --------------------------------------------------
December 31, 2008 (11)        143.4         -     173.3      24.8      26.0 
                          --------------------------------------------------
December 31, 2009              92.6         -     197.1      26.1      23.2 
                          --------------------------------------------------
December 31, 2010              74.6       0.9     211.9      21.6      21.4 
                          --------------------------------------------------
December 31, 2011              70.3       9.7     203.1      17.0      20.0 
----------------------------------------------------------------------------
                                                                            

SEC Continuity of Gross Reserves (1,7)                                     
                                       Other                               
                                   Southeast     Latin                     
                                        Asia   America     Other     Total 
---------------------------------------------------------------------------
Oil and Liquids (mmbbls)                                                   
Total Proved                                                               
                          -------------------------------------------------
Proved reserves at                                                         
 December 31, 2008 (11)                 39.4         -      45.1     544.5 
                          -------------------------------------------------
Discoveries, additions and                                                 
 extensions                              7.4         -      12.2      29.0 
                          -------------------------------------------------
Purchase of reserves                       -         -         -       1.2 
                          -------------------------------------------------
Sale of reserves                           -         -      (3.8)    (53.7)
                          -------------------------------------------------
Net revisions and                                                          
 transfers                               3.8         -      (8.6)     87.8 
                          -------------------------------------------------
2009 Production                        (10.7)        -      (5.9)    (76.9)
---------------------------------------------------------------------------
Proved reserves at                                                         
 December 31, 2009                      39.9         -      39.0     531.9 
                          -------------------------------------------------
Discoveries, additions and                                                 
 extensions                              3.0         -       2.2      33.5 
                          -------------------------------------------------
Purchase of reserves                       -         -         -       4.7 
                          -------------------------------------------------
Sale of reserves                           -         -      (0.7)    (19.4)
                          -------------------------------------------------
Net revisions and                                                          
 transfers                               6.7         -       0.2      27.8 
                          -------------------------------------------------
2010 Production                         (9.7)        -      (5.1)    (68.8)
---------------------------------------------------------------------------
Proved reserves at                                                         
 December 31, 2010                      39.9         -      35.6     509.7 
                          -------------------------------------------------
Discoveries, additions and                                                 
 extensions                             13.7         -       0.6      34.8 
                          -------------------------------------------------
Purchase of reserves                       -      18.8         -      19.5 
                          -------------------------------------------------
Sale of reserves                           -         -         -      (0.3)
                          -------------------------------------------------
Net revisions and                                                          
 transfers                               1.1      (0.1)      1.5      19.1 
                          -------------------------------------------------
2011 Production                         (8.5)     (2.8)     (5.5)    (64.8)
---------------------------------------------------------------------------
Proved reserves at                                                         
 December 31, 2011                      46.2      15.9      32.2     518.0 
---------------------------------------------------------------------------
Proved developed                                                           
                          -------------------------------------------------
December 31, 2008 (11)                  24.9         -      35.2     427.6 
                          -------------------------------------------------
December 31, 2009                       31.2         -      23.7     393.9 
                          -------------------------------------------------
December 31, 2010                       30.8         -      19.6     380.8 
                          -------------------------------------------------
December 31, 2011                       31.1       8.3      19.8     379.3 
---------------------------------------------------------------------------


                                                                           
                                                                           
                                                                           
                            Canada        US        UK    Norway Indonesia 
---------------------------------------------------------------------------
Natural Gas (bcf)                                                          
Total Proved                                                               
                         --------------------------------------------------
Proved reserves at                                                         
 December 31, 2008 (11)    2,507.0     137.9      95.6     101.9   1,886.0 
                         --------------------------------------------------
Discoveries, additions                                                     
 and extensions              201.2     544.5         -      (0.5)     88.6 
                         --------------------------------------------------
Purchase of reserves          15.9         -         -         -       8.7 
                         --------------------------------------------------
Sale of reserves            (137.6)     (1.5)    (67.0)        -         - 
                         --------------------------------------------------
Net revisions and                                                          
 transfers                   (75.3)      0.1       2.9      12.7      14.8 
                         --------------------------------------------------
2009 Production             (262.7)    (30.3)     (7.0)    (21.1)   (120.6)
---------------------------------------------------------------------------
Proved reserves at                                                         
 December 31, 2009         2,248.5     650.7      24.5      93.0   1,877.5 
                         --------------------------------------------------
Discoveries, additions                                                     
 and extensions              286.4     874.7       0.1       6.7      21.2 
                         --------------------------------------------------
Purchase of reserves             -      23.0         -         -      60.7 
                         --------------------------------------------------
Sale of reserves            (867.3)     (7.3)        -         -         - 
                         --------------------------------------------------
Net revisions and                                                          
 transfers                    33.2      12.5       4.9      12.1      (3.0)
                         --------------------------------------------------
2010 Production             (203.6)    (80.5)     (5.7)    (32.2)   (141.2)
---------------------------------------------------------------------------
Proved reserves at                                                         
 December 31, 2010         1,497.2   1,473.1      23.8      79.6   1,815.2 
                         --------------------------------------------------
Discoveries, additions                                                     
 and extensions              265.9     953.7      (0.2)      4.6       4.2 
                         --------------------------------------------------
Purchase of reserves             -       4.8         -         -         - 
                         --------------------------------------------------
Sale of reserves            (180.3)        -         -         -         - 
                         --------------------------------------------------
Net revisions and                                                          
 transfers                   (31.6)     87.3      (1.2)     (1.3)   (107.3)
                         --------------------------------------------------
2011 Production             (160.0)   (167.5)     (3.6)    (15.3)   (143.4)
---------------------------------------------------------------------------
Proved reserves at                                                         
 December 31, 2011         1,391.2   2,351.4      18.8      67.6   1,568.7 
---------------------------------------------------------------------------
Proved developed                                                           
                         --------------------------------------------------
December 31, 2008 (11)     2,066.8     117.9      65.5      99.0   1,348.9 
                         --------------------------------------------------
December 31, 2009          1,840.9     197.9      22.4      91.2   1,231.6 
                         --------------------------------------------------
December 31, 2010          1,134.7     687.5      22.0      73.3   1,083.1 
                         --------------------------------------------------
December 31, 2011          1,016.8     965.0      18.3      63.1     965.9 
---------------------------------------------------------------------------
                                                                           

                                                                            
                                        Other                               
                                    Southeast     Latin                     
                                         Asia   America     Other     Total 
----------------------------------------------------------------------------
Natural Gas (bcf)                                                           
Total Proved                                                                
                         ---------------------------------------------------
Proved reserves at                                                          
 December 31, 2008 (11)                 386.6         -     223.4   5,338.4 
                         ---------------------------------------------------
Discoveries, additions                                                      
 and extensions                          27.9         -         -     861.7 
                         ---------------------------------------------------
Purchase of reserves                        -         -         -      24.6 
                         ---------------------------------------------------
Sale of reserves                            -         -    (220.5)   (426.6)
                         ---------------------------------------------------
Net revisions and                                                           
 transfers                              (11.1)        -      (1.0)    (56.9)
                         ---------------------------------------------------
2009 Production                         (26.7)        -      (0.1)   (468.5)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2009                      376.7         -       1.8   5,272.7 
                         ---------------------------------------------------
Discoveries, additions                                                      
 and extensions                         (37.4)        -         -   1,151.7 
                         ---------------------------------------------------
Purchase of reserves                        -         -         -      83.7 
                         ---------------------------------------------------
Sale of reserves                            -         -      (1.8)   (876.4)
                         ---------------------------------------------------
Net revisions and                                                           
 transfers                               44.6         -         -     104.3 
                         ---------------------------------------------------
2010 Production                         (35.9)        -         -    (499.1)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2010                      348.0         -         -   5,236.9 
                         ---------------------------------------------------
Discoveries, additions                                                      
 and extensions                           7.3         -         -   1,235.5 
                         ---------------------------------------------------
Purchase of reserves                        -     116.9         -     121.7 
                         ---------------------------------------------------
Sale of reserves                            -         -         -    (180.3)
                         ---------------------------------------------------
Net revisions and                                                           
 transfers                                1.6         -         -     (52.5)
                         ---------------------------------------------------
2011 Production                         (41.3)    (12.5)        -    (543.6)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2011                      315.6     104.4         -   5,817.7 
----------------------------------------------------------------------------
Proved developed                                                            
                         ---------------------------------------------------
December 31, 2008 (11)                  199.0         -       1.2   3,898.3 
                         ---------------------------------------------------
December 31, 2009                       320.8         -       0.8   3,705.6 
                         ---------------------------------------------------
December 31, 2010                       281.3         -         -   3,281.9 
                         ---------------------------------------------------
December 31, 2011                       250.4      77.9         -   3,357.4 
----------------------------------------------------------------------------
                                                                            
SEC Continuity of NET Reserves (1,8,9)                                      
                                                                            
                                                                            
                                                                            
                             Canada        US        UK    Norway Indonesia 
----------------------------------------------------------------------------
Oil and Liquids (mmbbls)                                                    
Total Proved                                                                
                          --------------------------------------------------
Proved reserves at                                                          
 December 31, 2008 (11)       131.5         -     215.4      56.6      16.1 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                     4.0         -       5.2       1.1      (0.5)
                          --------------------------------------------------
Purchase of reserves            0.1         -         -         -       0.7 
                          --------------------------------------------------
Sale of reserves              (39.0)        -      (0.2)     (4.0)        - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                      2.7         -      76.8      14.5      (1.8)
                          --------------------------------------------------
2009 Production                (9.9)        -     (31.1)    (12.3)     (1.8)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2009             89.4         -     266.1      55.9      12.7 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                     4.7       2.5       6.8       9.7       1.4 
                          --------------------------------------------------
Purchase of reserves              -       0.9         -         -       1.5 
                          --------------------------------------------------
Sale of reserves              (15.1)     (0.2)        -         -         - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                     (2.4)      0.1      18.0       1.8      (0.8)
                          --------------------------------------------------
2010 Production                (6.6)     (0.1)    (27.0)    (14.2)     (2.0)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2010             70.0       3.2     263.9      53.2      12.8 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                     2.1      13.7      (4.1)      2.3       0.4 
                          --------------------------------------------------
Purchase of reserves              -       0.6         -         -         - 
                          --------------------------------------------------
Sale of reserves               (0.3)        -         -         -         - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                     (3.5)      0.3      10.4       7.2       4.1 
                          --------------------------------------------------
2011 Production                (6.3)     (0.5)    (25.2)    (10.0)     (1.8)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2011             62.0      17.3     245.0      52.7      15.5 
----------------------------------------------------------------------------
Proved developed                                      -         -           
                          --------------------------------------------------
December 31, 2008 (11)        122.0         -     172.0      24.8      13.5 
                          --------------------------------------------------
December 31, 2009              82.1         -     196.0      26.1      11.0 
                          --------------------------------------------------
December 31, 2010              65.6       0.7     210.6      21.6       8.6 
                          --------------------------------------------------
December 31, 2011              59.9       7.3     201.9      17.0       9.9 
----------------------------------------------------------------------------
                                                                            

SEC Continuity of NET Reserves (1,8,9)                                      
                                                                            
                                        Other                               
                                    Southeast     Latin                     
                                         Asia   America     Other     Total 
----------------------------------------------------------------------------
Oil and Liquids (mmbbls)                                                    
Total Proved                                                                
                          --------------------------------------------------
Proved reserves at                                                          
 December 31, 2008 (11)                  27.1         -      26.3     473.0 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                               5.3         -       6.5      21.6 
                          --------------------------------------------------
Purchase of reserves                        -         -         -       0.8 
                          --------------------------------------------------
Sale of reserves                            -         -      (3.7)    (46.9)
                          --------------------------------------------------
Net revisions and                                                           
 transfers                                3.8         -      (4.7)     91.3 
                          --------------------------------------------------
2009 Production                          (7.6)        -      (3.4)    (66.1)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2009                       28.6         -      21.0     473.7 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                               2.5         -       1.0      28.6 
                          --------------------------------------------------
Purchase of reserves                        -         -         -       2.4 
                          --------------------------------------------------
Sale of reserves                            -         -      (0.5)    (15.8)
                          --------------------------------------------------
Net revisions and                                                           
 transfers                                0.6         -      (0.2)     17.1 
                          --------------------------------------------------
2010 Production                          (6.1)        -      (2.4)    (58.4)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2010                       25.6         -      18.9     447.6 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                               9.7         -      (0.9)     23.2 
                          --------------------------------------------------
Purchase of reserves                        -      15.1         -      15.7 
                          --------------------------------------------------
Sale of reserves                            -         -         -      (0.3)
                          --------------------------------------------------
Net revisions and                                                           
 transfers                                0.5         -      (0.1)     18.9 
                          --------------------------------------------------
2011 Production                          (5.5)     (2.3)     (2.4)    (54.0)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2011                       30.3      12.8      15.5     451.1 
----------------------------------------------------------------------------
Proved developed                                                            
                          --------------------------------------------------
December 31, 2008 (11)                   17.7                20.2     370.2 
                          --------------------------------------------------
December 31, 2009                        21.2                13.0     349.4 
                          --------------------------------------------------
December 31, 2010                        18.6                 9.8     335.5 
                          --------------------------------------------------
December 31, 2011                        19.0       6.7       9.0     330.7 
----------------------------------------------------------------------------
                                                                            
                                                                            
                                                                            
                                                                            
                                                                            
                             Canada        US        UK    Norway Indonesia 
----------------------------------------------------------------------------
                                                                            
Natural Gas (bcf)                                                           
Total Proved                                                                
                          --------------------------------------------------
Proved reserves at                                                          
 December 31, 2008 (11)     2,169.2     119.2      95.6     101.9   1,407.7 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                   185.6     474.6         -      (0.5)     62.8 
                          --------------------------------------------------
Purchase of reserves           14.2         -         -         -       7.5 
                          --------------------------------------------------
Sale of reserves             (115.8)     (1.4)    (67.0)        -           
                          --------------------------------------------------
Net revisions and                                                           
 transfers                     28.2         -       2.9      12.7     (19.5)
                          --------------------------------------------------
2009 Production              (238.4)    (26.2)     (7.0)    (21.1)    (84.4)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2009          2,043.0     566.2      24.5      93.0   1,374.1 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                   263.7     738.6       0.1       6.7       8.1 
                          --------------------------------------------------
Purchase of reserves              -      17.5         -         -      42.4 
                          --------------------------------------------------
Sale of reserves             (772.5)     (5.8)        -         -         - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                     11.2      10.3       4.9      12.1     (57.2)
                          --------------------------------------------------
2010 Production              (190.9)    (68.9)     (5.7)    (32.2)    (98.2)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2010          1,354.5   1,257.9      23.8      79.6   1,269.2 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                   251.1     799.4      (0.2)      4.6      36.1 
                          --------------------------------------------------
Purchase of reserves              -       3.6         -         -         - 
                          --------------------------------------------------
Sale of reserves             (165.5)        -         -         -         - 
                          --------------------------------------------------
Net revisions and                                                           
 transfers                      3.5      66.8      (1.4)     (1.3)    (94.1)
                          --------------------------------------------------
2011 Production              (150.9)   (141.9)     (3.5)    (15.3)   (104.0)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2011          1,292.7   1,985.8      18.7      67.6   1,107.2 
----------------------------------------------------------------------------
Proved developed                                      -         -           
                          --------------------------------------------------
December 31, 2008 (11)      1,785.8     101.8      65.5      99.0   1,022.2 
                          --------------------------------------------------
December 31, 2009           1,663.5     171.1      22.4      91.2     915.2 
                          --------------------------------------------------
December 31, 2010           1,011.4     584.9      22.0      73.3     763.7 
                          --------------------------------------------------
December 31, 2011             936.5     814.7      18.2      63.1     688.5 
----------------------------------------------------------------------------
                                                                            

                                                                            
                                                                            
                                        Other                               
                                    Southeast     Latin                     
                                         Asia   America     Other     Total 
----------------------------------------------------------------------------
                                                                            
Natural Gas (bcf)                                                           
Total Proved                                                                
                          --------------------------------------------------
Proved reserves at                                                          
 December 31, 2008 (11)                 289.7               222.8   4,406.1 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                              25.3                   -     747.8 
                          --------------------------------------------------
Purchase of reserves                        -                   -      21.7 
                          --------------------------------------------------
Sale of reserves                            -              (220.0)   (404.2)
                          --------------------------------------------------
Net revisions and                                                           
 transfers                              (33.3)               (1.0)    (10.0)
                          --------------------------------------------------
2009 Production                         (20.3)               (0.1)   (397.5)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2009                      261.4                 1.7   4,363.9 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                             (22.6)                  -     994.6 
                          --------------------------------------------------
Purchase of reserves                        -                   -      59.9 
                          --------------------------------------------------
Sale of reserves                            -                (1.6)   (779.9)
                          --------------------------------------------------
Net revisions and                                                           
 transfers                               14.3                (0.1)     (4.5)
                          --------------------------------------------------
2010 Production                         (27.3)                  -    (423.2)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2010                      225.8                   -   4,210.8 
                          --------------------------------------------------
Discoveries, additions and                                                  
 extensions                               9.2         -         -   1,100.2 
                          --------------------------------------------------
Purchase of reserves                        -      93.6         -      97.2 
                          --------------------------------------------------
Sale of reserves                            -         -         -    (165.5)
                          --------------------------------------------------
Net revisions and                                                           
 transfers                              (13.0)      0.1         -     (39.4)
                          --------------------------------------------------
2011 Production                         (33.2)    (10.2)        -    (459.0)
----------------------------------------------------------------------------
Proved reserves at                                                          
 December 31, 2011                      188.8      83.5         -   4,744.3 
----------------------------------------------------------------------------
Proved developed                                                            
                          --------------------------------------------------
December 31, 2008 (11)                  149.0                 1.2   3,224.5 
                          --------------------------------------------------
December 31, 2009                       225.5                 0.8   3,089.7 
                          --------------------------------------------------
December 31, 2010                       187.2                   -   2,642.5 
                          --------------------------------------------------
December 31, 2011                       149.7      62.3         -   2,733.0 
----------------------------------------------------------------------------
                                                                            
Summary of Oil and Gas Reserves                                            
                                                                           
                            Proved            Proved            Total      
                       Developed (1,2)  Undeveloped (1,3)     Proved (1)   
                      -----------------------------------------------------
Year ended December      Gross      Net    Gross      Net    Gross      Net
31, 2011                   (7)    (8,9)      (7)    (8,9)      (7)    (8,9)
---------------------------------------------------------------------------
Oil and NGL (mmbls)                                                        
                      -----------------------------------------------------
North America                                                              
                      -----------------------------------------------------
  Canada                  70.3     59.9      2.4      2.1     72.7     62.0
                      -----------------------------------------------------
  United States            9.7      7.3     13.4     10.0     23.1     17.3
---------------------------------------------------------------------------
North Sea                                                                  
                      -----------------------------------------------------
  UK                     203.1    201.9     43.2     43.1    246.3    245.0
                      -----------------------------------------------------
  Norway                  17.0     17.0     35.7     35.7     52.7     52.7
---------------------------------------------------------------------------
Southeast Asia                                                             
                      -----------------------------------------------------
  Indonesia               20.0      9.9      8.9      5.6     28.9     15.5
                      -----------------------------------------------------
  Malaysia                20.5      9.8      3.3      1.5     23.8     11.3
                      -----------------------------------------------------
  Australia                9.9      8.6        -        -      9.9      8.6
                      -----------------------------------------------------
  Vietnam                  0.7      0.6     11.8      9.8     12.5     10.4
---------------------------------------------------------------------------
Latin America                                                              
                      -----------------------------------------------------
  Colombia (10)            8.3      6.7      7.6      6.1     15.9     12.8
                      -----------------------------------------------------
  Peru                       -        -        -        -        -        -
---------------------------------------------------------------------------
Other                                                                      
                      -----------------------------------------------------
  Algeria                 19.8      9.0     12.4      6.5     32.2     15.5
---------------------------------------------------------------------------
Total                    379.3    330.7    138.7    120.4    518.0    451.1
---------------------------------------------------------------------------
                                                                           
Natural Gas (bcf)                                                          
                      -----------------------------------------------------
North America                                                              
                      -----------------------------------------------------
  Canada               1,016.8    936.5    374.4    356.2  1,391.2  1,292.7
                      -----------------------------------------------------
  United States          965.0    814.7  1,386.4  1,171.1  2,351.4  1,985.8
---------------------------------------------------------------------------
North Sea                                                                  
                      -----------------------------------------------------
  UK                      18.3     18.2      0.5      0.5     18.8     18.7
                      -----------------------------------------------------
  Norway                  63.1     63.1      4.5      4.5     67.6     67.6
---------------------------------------------------------------------------
Southeast Asia                                                             
                      -----------------------------------------------------
  Indonesia              965.9    688.5    602.8    418.7  1,568.7  1,107.2
                      -----------------------------------------------------
  Malaysia               250.2    149.5     56.8     31.5    307.0    181.0
                      -----------------------------------------------------
  Australia                  -        -        -        -        -        -
                      -----------------------------------------------------
  Vietnam                  0.2      0.2      8.4      7.6      8.6      7.8
---------------------------------------------------------------------------
Latin America                                                              
                      -----------------------------------------------------
  Colombia (10)           77.9     62.3     26.5     21.2    104.4     83.5
                      -----------------------------------------------------
  Peru                       -        -        -        -        -        -
---------------------------------------------------------------------------
Other                                                                      
                      -----------------------------------------------------
  Algeria                    -        -        -        -        -        -
---------------------------------------------------------------------------
Total                  3,357.4  2,733.0  2,460.3  2,011.3  5,817.7  4,744.3
---------------------------------------------------------------------------

Summary of Oil and Gas Reserves                                             
                                                                            
                           Probable          Probable            Total      
                       Developed (4,5)   Undeveloped (4,6)    Probable (4)  
                     -------------------------------------------------------
Year ended December      Gross      Net                Net    Gross      Net
31, 2011                   (7)    (8,9) Gross (7)    (8,9)      (7)    (8,9)
----------------------------------------------------------------------------
Oil and NGL (mmbls)                                                         
                     -------------------------------------------------------
North America                                                               
                     -------------------------------------------------------
  Canada                  14.5     11.5       1.8      1.4     16.3     12.9
                     -------------------------------------------------------
  United States            2.2      1.8       2.2      1.7      4.4      3.5
----------------------------------------------------------------------------
North Sea                                                                   
                     -------------------------------------------------------
  UK                      63.9     63.5     118.8    118.7    182.7    182.2
                     -------------------------------------------------------
  Norway                   6.9      6.9      31.8     31.8     38.7     38.7
----------------------------------------------------------------------------
Southeast Asia                                                              
                     -------------------------------------------------------
  Indonesia                1.4      0.4       9.3      6.8     10.7      7.2
                     -------------------------------------------------------
  Malaysia                24.3      9.2      12.6      3.5     36.9     12.7
                     -------------------------------------------------------
  Australia                4.0      3.3       0.8      0.7      4.8      4.0
                     -------------------------------------------------------
  Vietnam                  0.5      0.4      10.7      8.6     11.2      9.0
----------------------------------------------------------------------------
Latin America                                                               
                     -------------------------------------------------------
  Colombia (10)            3.1      2.5       7.0      5.6     10.1      8.1
                     -------------------------------------------------------
  Peru                       -        -      21.2     20.0     21.2     20.0
----------------------------------------------------------------------------
Other                                                                       
                     -------------------------------------------------------
  Algeria                  7.5      3.0       4.2      1.6     11.7      4.6
----------------------------------------------------------------------------
Total                    128.3    102.5     220.4    200.4    348.7    302.9
----------------------------------------------------------------------------
                                                                            
Natural Gas (bcf)                                                           
                     -------------------------------------------------------
North America                                                               
                     -------------------------------------------------------
  Canada                 327.8    295.1     194.4    182.8    522.2    477.9
                     -------------------------------------------------------
  United States          166.4    140.0     610.9    518.2    777.3    658.2
----------------------------------------------------------------------------
North Sea                                                                   
                     -------------------------------------------------------
  UK                       8.9      8.5     133.6    133.5    142.5    142.0
                     -------------------------------------------------------
  Norway                  19.4     19.4      45.6     45.6     65.0     65.0
----------------------------------------------------------------------------
Southeast Asia                                                              
                     -------------------------------------------------------
  Indonesia                4.7      4.0     506.4    366.7    511.1    370.7
                     -------------------------------------------------------
  Malaysia               125.2     68.3     168.7     99.5    293.9    167.8
                     -------------------------------------------------------
  Australia                  -        -         -        -        -        -
                     -------------------------------------------------------
  Vietnam                  0.1      0.1       6.8      6.2      6.9      6.3
----------------------------------------------------------------------------
Latin America                                                               
                     -------------------------------------------------------
  Colombia (10)              -        -         -        -        -        -
                     -------------------------------------------------------
  Peru                       -        -         -        -        -        -
----------------------------------------------------------------------------
Other                                                                       
                     -------------------------------------------------------
  Algeria                    -        -         -        -        -        -
----------------------------------------------------------------------------
Total                    652.5    535.4   1,666.4  1,352.5  2,318.9  1,887.9
----------------------------------------------------------------------------

1.  "Proved" reserves are those quantities of oil and gas, which, by
    analysis of geoscience and engineering data, can be estimated with
    reasonable certainty to be economically producible - from a given date
    forward, from known reservoirs and under existing economic conditions,
    operating methods and government regulations, prior to the time at which
    contracts providing the right to operate expire, unless evidence
    indicates that renewal is reasonably certain, regardless of whether
    deterministic or probabilistic methods are used for estimation. 
2.  "Proved Developed" reserves are those reserves that can be expected to
    be recovered through existing wells with existing equipment and
    operating methods or in which the cost of the required equipment is
    relatively minor compared to the cost of a new well. Additional oil and
    gas expected to be obtained through installed extraction equipment and
    infrastructure operational at the time of the reserves estimate are
    included as proved developed reserves. 
3.  "Proved Undeveloped" reserves are those reserves that are expected to be
    recovered from new wells on undrilled acreage, or from existing wells
    for which a relatively major expenditure is required for recompletion.
    Inclusion of reserves on undrilled acreage is limited to those directly
    offsetting development spacing areas that are reasonably certain of
    production when drilled, unless evidence using reliable technology
    exists that establishes reasonable certainty of economic producibility
    at greater distances. 
4.  "Probable" reserves are those additional reserves that are less certain
    to be recovered than proved reserves but which, together with proved
    reserves, are as likely as not to be recovered. Probable reserves can be
    assigned to areas that are structurally higher than the proved area if
    these areas are in communication with the proved reservoir. Includes
    reserves assigned to areas of a reservoir adjacent to proved reserves
    where data control or interpretations of available data are less
    certain, even if interpreted reservoir continuity of structure or
    productivity does not meet the reasonable certainty criterion. 
5.  "Probable Developed" reserves are those reserves that are less certain
    to be recovered through existing wells with existing equipment and
    operating methods or in which the cost of the required equipment is
    relatively minor compared to the cost of a new well. Additional oil and
    gas expected to be obtained through installed extraction equipment and
    infrastructure operational at the time of the reserves estimate are
    included as probable developed reserves. 
6.  "Probable Undeveloped" reserves are those reserves that are less certain
    to be recovered from new wells on undrilled acreage, or from existing
    wells for which a relatively major expenditure is required for
    recompletion. 
7.  "Gross" reserves refer to the sum of (i) working interest reserves
    before deduction of royalty burdens payable, and (ii) royalty interest
    reserves. The Canadian Oil and Gas Evaluation Handbook ("COGEH") refers
    to this sum of reserves as "Company interest reserves". Royalty interest
    reserves for Canada were approximately 0.6 mmboe (proved) and 0.2 mmboe
    (probable) as at December 31, 2011. The inclusion of royalty interest
    volumes in gross reserves does not conform to COGEH standards applicable
    under NI 51-101. 
8.  "Net" reserves are the remaining reserves of Talisman, after deduction
    of estimated royalty burdens and including royalty interests in the
    amount set out in note 7 above. 
9.  Interests of various governments, other than working interests or income
    taxes, are accounted for as royalties. Royalties are reflected in "net"
    reserves using effective rates over the life of the contract. 
10. Reserves reported under Colombia include those reserves held through
    Talisman's 49% interest in Equion, which is accounted for using
    proportionate consolidation, as well as those reserves attributed to
    Talisman's other Colombia assets. 
11. December 31, 2008 reserves are based on a single day December 31, 2008
    pricing methodology. 

Contacts: Talisman Energy Inc. - Media and General Inquiries David Mann, Vice-President, Corporate & Investor Communications (403) 237-1196 (403) 237-1210 (FAX)tlm@talisman-energy.com Talisman Energy Inc. - Shareholder and Investor Inquiries Lyle McLeod, Vice-President, Investor Relations 403-237-1020 (403) 237-1210 (FAX)tlm@talisman-energy.com www.talisman-energy.com

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