UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

 

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 2)*


Bronco Drilling Company, Inc. (the “Issuer”)

(Name of Issuer)


Common Stock, par value $0.01 per share (“Common Shares”)

(Title of Class of Securities)

 

112211107

(CUSIP Number)

 

December 31, 2008

(Date of Event Which Requires Filing of this Statement)

 

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

o   Rule 13d-1(b)

x   Rule 13d-1(c)

o   Rule 13d-1(d)

 

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“ Act ”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 

 

 

 

1

 

 

 



CUSIP No. 112211107

 

Page 2 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Carlos Slim Helú

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

2

 

 

 



CUSIP No. 112211107

 

Page 3 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Carlos Slim Domit

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

3

 

 

 



CUSIP No. 112211107

 

Page 4 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Marco Antonio Slim Domit

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

4

 

 

 



CUSIP No. 112211107

 

Page 5 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Patrick Slim Domit

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

5

 

 

 



CUSIP No. 112211107

 

Page 6 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

María Soumaya Slim Domit

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

6

 

 

 



CUSIP No. 112211107

 

Page 7 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Vanessa Paola Slim Domit

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

7

 

 

 



CUSIP No. 112211107

 

Page 8 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Johanna Monique Slim Domit

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

8

 

 

 



CUSIP No. 112211107

 

Page 9 of 13 Pages

 

 

 

 

1

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

 

Inmobiliaria Carso, S.A. de C.V.

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*   

(a) o

(b) o

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

México

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5

SOLE VOTING POWER

6

SHARED VOTING POWER
3,931,000 Common Shares (see Item 4(c))

7

SOLE DISPOSITIVE POWER

8

SHARED DISPOSITIVE POWER
3,931,000 Common Shares (see Item 4(c))

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,931,000 Common Shares (see Item 4(a))

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES o *

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
14.66% (see Item 4(b))

12

TYPE OF REPORTING PERSON*
HC

*SEE INSTRUCTIONS BEFORE FILLING OUT!

 

 

 

 

9

 

 

 



CUSIP No. 112211107

 

Page 10 of 13 Pages

 

 

 

Item 1.

 

(a)

Name of Issuer:

Bronco Drilling Company, Inc. (the “ Issuer ”)

(b)

Address of Issuer’s Principal Executive Offices:

16217 North May Avenue

Edmond, OK 73013

Item 2.

 

(a)

Name of Persons Filing:

This statement is filed pursuant to Rule 13d-1(c) under the Securities Exchange Act of 1934, as amended (the “ Act ”), by the persons listed below (the “ Reporting Persons ”).

(1)

 

Carlos Slim Helú, Carlos Slim Domit, Marco Antonio Slim Domit, Patrick Slim Domit, María Soumaya Slim Domit, Vanessa Paola Slim Domit and Johanna Monique Slim Domit (collectively, the “ Slim Family ”), each of whom is a Mexican citizen. The members of the Slim Family are beneficiaries of a Mexican trust which in turn owns all of the outstanding voting securities of Inmobiliaria Carso, S.A. de C.V (“ Inmobiliaria ”).

 

(2)  

Inmobiliaria, a sociedad anónima de capital variable organized under the laws of the United Mexican States (“ Mexico ”), is a holding company with portfolio investments in various companies.

 

 

 

(b)

Address of Principal Business Office:

(i) The principal business address for each member of the Slim Family is:

Paseo de las Palmas 736
Colonia Lomas de Chapultepec
11000 México, D.F., México


(ii) Inmobiliaria’s principal business address is:

Avenida Insurgentes Sur #3500, PB
Colonia Peña Pobre
Delegación Tlalpan, CP
14060 México D.F.
México

 

(c)

Citizenship:

Each member of the Slim Family is a Mexican citizen and Inmobiliaria is a Mexican corporation.

 

 

 

10

 

 

 

 


CUSIP No. 112211107

 

Page 11 of 13 Pages