-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, M6U0WiXxZwN216rOoVZGSAb9bLKDrpdJd8nCxAanDKjoQYfVDPvPlXXLZz8ogVIW gHU3oBbjUcVNanSmmTq/fg== 0000903423-08-000977.txt : 20081126 0000903423-08-000977.hdr.sgml : 20081126 20081126171448 ACCESSION NUMBER: 0000903423-08-000977 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20081126 DATE AS OF CHANGE: 20081126 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Bronco Drilling Company, Inc. CENTRAL INDEX KEY: 0001328650 STANDARD INDUSTRIAL CLASSIFICATION: DRILLING OIL & GAS WELLS [1381] IRS NUMBER: 202902156 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-80976 FILM NUMBER: 081218809 BUSINESS ADDRESS: STREET 1: 16217 NORTH MAY AVENUE CITY: EDMOND STATE: OK ZIP: 73013 BUSINESS PHONE: 405.242.4444 MAIL ADDRESS: STREET 1: 16217 NORTH MAY AVENUE CITY: EDMOND STATE: OK ZIP: 73013 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: HELU CARLOS SLIM CENTRAL INDEX KEY: 0001080910 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: ALTRIA GROUP INC STREET 2: 120 PARK AVE CITY: NEW YORK STATE: NY ZIP: 10017 BUSINESS PHONE: 525556254946 MAIL ADDRESS: STREET 1: PASEO DE LAS PALMAS 736 CITY: MEXICO CITY STATE: O5 ZIP: 11000 SC 13G/A 1 broncoslim-13ga1_1125.htm

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

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

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)

November 24, 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).

CUSIP No. 112211107

Page 2 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 3 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 4 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 5 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 6 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 7 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 8 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 9 of 14 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 2,827,000 Common Shares (see Item 4(c))
		7	SOLE DISPOSITIVE POWER
		8	SHARED DISPOSITIVE POWER 2,827,000 Common Shares (see Item 4(c))
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,827,000 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 10.545% (see Item 4(b))
12	TYPE OF REPORTING PERSON* HC
*SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 112211107

Page 10 of 14 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.

CUSIP No. 112211107

Page 11 of 14 Pages

(d)	Title of Class of Securities: Common Stock, par value $0.01 per share (“Common Shares”)
(e)	CUSIP Number: 112211107
Item 3.	If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a(n):
(a)		Broker or dealer registered under Section 15 of the Act;

(b)		Bank as defined in Section 3(a)(6) of the Act;

(c)		Insurance company as defined in Section 3(a)(19) of the Act;

(d)		Investment company registered under Section 8 of the Investment Company Act;

(e)		Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(e)
(f)		Employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);

(g)		Parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);

(h)		Savings association as defined in Section 3(b) of the Federal Deposit Insurance Act;
(h)

CUSIP No. 112211107

Page 12 of 14 Pages

(i)		Church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act; or


(j)		Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
Item 4.	Ownership.
(a)	Amount Beneficially Owned: As of November 25, 2008, (i) Inmobiliaria directly or indirectly owns 2,827,000 Common Shares, and (ii) the Slim Family, which owns all of the issued and outstanding voting equity securities of Inmobiliaria, may be deemed to beneficially own indirectly the Common Shares beneficially owned directly or indirectly by Inmobiliaria.
(b)	Percent of Class: The Common Shares beneficially owned by the Reporting Persons constitute approximately 10.545% of the 26,809,751 issued and outstanding Common Shares, as reported in the Form 10-Q filed by the Issuer with the Securities and Exchange Commission on November 7, 2008.

(c)	Number of shares as to which such person has:
	(i)		Sole power to vote or to direct the vote: -0-
	(ii)		Shared power to vote or to direct the vote: 2,827,000 Common Shares
	(iii)		Sole power to dispose or to direct the disposition of: -0-
	(iv)		Shared power to dispose or direct the disposition of: 2,827,000 Common Shares
Item 5.	Ownership of Five Percent or Less of a Class.
	If this statement is being filed to report the fact that as of the date hereof o the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following:
Item 6.	Ownership of More than Five Percent on Behalf of Another Person. Not applicable.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company. Not applicable.
Item 8.	Identification and Classification of Members of the Group. Not applicable.
Item 9.	Notice of Dissolution of Group. Not applicable.

CUSIP No. 112211107

Page 13 of 14 Pages

Item 10.	Certifications.
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

The Powers of Attorney and Joint Filing Agreement filed as exhibits to the Schedule 13G filed by the Reporting Persons with the Securities and Exchange Commission on October 22, 2008 are hereby incorporated herein by reference.

CUSIP No. 112211107

Page 14 of 14 Pages

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief I certify that the information set forth in this statement is true, complete and correct.

Carlos Slim Helú
_____________________________
Carlos Slim Domit	By: /s/ Eduardo Valdés Acra
_____________________________	Eduardo Valdés Acra
Marco Antonio Slim Domit	Attorney-in-Fact
_____________________________	November 26, 2008
Patrick Slim Domit
_____________________________
María Soumaya Slim Domit
_____________________________
Vanessa Paola Slim Domit
_____________________________
Johanna Monique Slim Domit


INMOBILIARIA CARSO, S.A. DE C.V.
_____________________________
By: Armando Ibáñez Vázquez
Title: Attorney-in-Fact

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