Forward-Looking Statements and Cautionary Statements
The foregoing contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended. All statements, other than statements of historical fact, included in this communication that address activities, events or developments that Permian Resources and Earthstone
expects, believes or anticipates will or may occur in the future are forward-looking statements. Words such as “estimate,” “project,” “predict,” “believe,” “expect,” “anticipate,”
“potential,” “create,” “intend,” “could,” “would,” “may,” “foresee,” “plan,” “will,” “guidance,” “look,” “outlook,”
“goal,” “future,” “assume,” “forecast,” “build,” “focus,” “work,” “strive,” “allow,” “continue” or the negative of such terms or other variations
thereof and words and terms of similar substance used in connection with any discussion of future plans, actions, or events identify forward-looking statements. However, the absence of these words does not mean that the statements are not
forward-looking. These forward-looking statements include, but are not limited to, statements regarding the proposed business combination between Permian Resources and Earthstone pursuant to the Merger Agreement (the “Transaction”), pro
forma descriptions of the combined company and its operations, integration and transition plans, synergies, opportunities and anticipated future performance. There are a number of risks and uncertainties that could cause actual results to differ
materially from the forward-looking statements included in this communication. These include the expected timing and likelihood of completion of the Transaction, including the timing, receipt and terms and conditions of any required governmental and
regulatory approvals of the Transaction that could reduce anticipated benefits or cause the parties to abandon the Transaction, the ability to successfully integrate the businesses, the occurrence of any event, change or other circumstances that
could give rise to the termination of the Merger Agreement, the possibility that stockholders of Permian Resources may not approve the issuance of new shares of common stock in the Transaction or that stockholders of Earthstone may not approve the
Merger Agreement, the risk that the parties may not be able to satisfy the conditions to the Transaction in a timely manner or at all, risks related to disruption of management time from ongoing business operations due to the Transaction, the risk
that any announcements relating to the Transaction could have adverse effects on the market price of Permian Resources’ common stock or Earthstone’s common stock, the risk that the Transaction and its announcement could have an adverse
effect on the ability of Permian Resources and Earthstone to retain customers and retain and hire key personnel and maintain relationships with their suppliers and customers and on their operating results and businesses generally, the risk the
pending Transaction could distract management of both entities and they will incur substantial costs, the risk that problems may arise in successfully integrating the businesses of the companies, which may result in the combined company not
operating as effectively and efficiently as expected, the risk that the combined company may be unable to achieve synergies or it may take longer than expected to achieve those synergies and other important factors that could cause actual results to
differ materially from those projected. All such factors are difficult to predict and are beyond Permian Resources’ and Earthstone’s control, including those detailed in Permian Resources’ annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K that are available on its
website at https://permianres.com and on the Securities Exchange Commission’s (the “SEC”) website at http://www.sec.gov, and those detailed in Earthstone’s annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K that are available on its
website at https://www.earthstoneenergy.com and on the SEC’s website at http://www.sec.gov. All forward-looking statements are based on assumptions that Permian Resources and Earthstone believe to be reasonable but
that may not prove to be accurate. Any forward-looking statement speaks only as of the date on which such statement is made, and Permian Resources and Earthstone undertake no obligation to correct or update any forward-looking statement, whether as
a result of new information, future events or otherwise, except as required by applicable law. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date hereof.
No Offer or Solicitation
This communication relates to
the Transaction between Permian Resources and Earthstone. This communication is for informational purposes only and is not intended to and does not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer
to buy any securities or a solicitation of any vote or approval, in any jurisdiction, pursuant to the Transaction or otherwise, nor shall there be any sale, issuance, exchange or transfer of the securities referred to in this document in any
jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.