SEC FORM 4

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

PETERSEN DALE E

(Last)

(First)

(Middle)

101 N. BROADWAY

(Street)

OKLAHOMA CITY

73102

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
BANCFIRST CORP /OK/ [ BANF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP

3. Date of Earliest Transaction (Month/Day/Year)
12/05/2006

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/05/2006		M		250	A	$16.844	250	D
Common Stock	12/05/2006		S		250	D	$54.3	0	D
Common Stock	12/05/2006		M		97	A	$16.844	97	D
Common Stock	12/05/2006		S		97	D	$54.31	0	D
Common Stock	12/05/2006		M		100	A	$16.844	100	D
Common Stock	12/05/2006		S		100	D	$54.29	0	D
Common Stock	12/05/2006		M		100	A	$16.844	100	D
Common Stock	12/05/2006		S		100	D	$54.28	0	D
Common Stock	12/05/2006		M		100	A	$16.844	100	D
Common Stock	12/05/2006		S		100	D	$54.27	0	D
Common Stock	12/05/2006		M		15	A	$16.844	15	D
Common Stock	12/05/2006		S		15	D	$54.23	0	D
Common Stock	12/05/2006		M		99	A	$16.844	99	D
Common Stock	12/05/2006		S		99	D	$54.21	0	D
Common Stock	12/05/2006		M		257	A	$16.844	257	D
Common Stock	12/05/2006		S		257	D	$54.19	0	D
Common Stock	12/05/2006		M		100	A	$16.844	100	D
Common Stock	12/05/2006		S		100	D	$54.18	0	D
Common Stock	12/05/2006		M		199	A	$16.844	199	D
Common Stock	12/05/2006		S		199	D	$54.05	0	D
Common Stock	12/05/2006		M		99	A	$16.844	99	D
Common Stock	12/05/2006		S		99	D	$54.04	0	D
Common Stock	12/05/2006		M		300	A	$16.844	300	D
Common Stock	12/05/2006		S		300	D	$54.02	0	D
Common Stock	12/05/2006		M		398	A	$16.844	398	D
Common Stock	12/05/2006		S		398	D	$54.01	0	D
Common Stock	12/05/2006		M		386	A	$16.844	386	D
Common Stock	12/05/2006		S		386	D	$54	0	D
Common Stock	12/05/2006		M		1,250	A	$20	1,250	D
Common Stock	12/05/2006		S		1,250	D	$54	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			250	10/22/2002	10/22/2013	Common Stock	250	$0	2,250	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			97	10/22/2002	10/22/2013	Common Stock	97	$0	2,153	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			100	10/22/2002	10/22/2013	Common Stock	100	$0	2,053	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			100	10/22/2002	10/22/2013	Common Stock	100	$0	1,953	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			100	10/22/2002	10/22/2013	Common Stock	100	$0	1,853	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			15	10/22/2002	10/22/2013	Common Stock	15	$0	1,838	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			99	10/22/2002	10/22/2006	Common Stock	99	$0	1,739	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			257	10/22/2002	10/22/2013	Common Stock	257	$0	1,482	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			100	10/22/2002	10/22/2013	Common Stock	100	$0	1,382	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			199	10/22/2002	10/22/2013	Common Stock	199	$0	1,183	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			99	10/22/2002	10/22/2013	Common Stock	99	$0	1,084	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			300	10/22/2002	10/22/2013	Common Stock	300	$0	784	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			398	10/22/2002	10/22/2013	Common Stock	398	$0	386	D
Non-Qualified Stock Option (right to buy)	$16.844	12/05/2006		M			386	10/22/2002	10/22/2013	Common Stock	386	$0	0	D
Non-Qualified Stock Option (right to buy)	$20	12/05/2006		M			1,250	04/05/2002	04/05/2013	Common Stock	1,250	$0	3,750	D

Explanation of Responses:

	By: Randy Foraker For: Dale E. Petersen	12/07/2006
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.