10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2015

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                         to

Commission File Number 0-14384

BancFirst Corporation

(Exact name of registrant as specified in charter)

Oklahoma	73-1221379
(State or other Jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

101 N. Broadway, Oklahoma City, Oklahoma	73102-8405
(Address of principal executive offices)	(Zip Code)

(405) 270-1086

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  o.

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (sec. 232-405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  o.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer.  See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	o	Accelerated filer	x
Non-accelerated filer	o  (Do not check if a smaller reporting company)	Smaller reporting company	o

Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Exchange Act).    Yes  o    No  x

As of July 31, 2015 there were 15,580,827 shares of the registrant’s Common Stock outstanding.

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

BANCFIRST CORPORATION

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands)

	June 30,			December 31,
		2015			2014
	(unaudited)			(see Note 1)
ASSETS
Cash and due from banks	$	179,190		$	203,545
Interest-bearing deposits with banks		1,638,038			1,710,350
Securities (fair value: $537,387 and $524,861, respectively)		537,319			524,783
Loans held for sale		13,587			9,433
Loans (net of unearned interest)		3,858,332			3,851,398
Allowance for loan losses		(42,621	)		(40,889	)
Loans, net of allowance for loan losses		3,815,711			3,810,509
Premises and equipment, net		120,880			121,341
Other real estate owned		7,357			7,859
Intangible assets, net		9,681			10,635
Goodwill		44,594			44,962
Accrued interest receivable and other assets		132,541			131,555
Total assets	$	6,498,898		$	6,574,972
LIABILITIES AND STOCKHOLDERS' EQUITY
Deposits:
Noninterest-bearing	$	2,321,206		$	2,411,066
Interest-bearing		3,487,015			3,493,638
Total deposits		5,808,221			5,904,704
Short-term borrowings		2,075			3,982
Accrued interest payable and other liabilities		27,554			30,168
Junior subordinated debentures		26,804			26,804
Total liabilities		5,864,654			5,965,658
Commitments and contingent liabilities
Stockholders' equity:
Senior preferred stock, $1.00 par; 10,000,000 shares authorized; none issued		—			—
Cumulative preferred stock, $5.00 par; 900,000 shares authorized; none issued		—			—
Common stock, $1.00 par, 20,000,000 shares authorized; shares issued and    outstanding: 15,562,298 and 15,504,513, respectively		15,562			15,504
Capital surplus		99,202			96,841
Retained earnings		517,028			492,776
Accumulated other comprehensive income, net of income tax of $1,547, and $2,644, respectively		2,452			4,193
Total stockholders' equity		634,244			609,314
Total liabilities and stockholders' equity	$	6,498,898		$	6,574,972

The accompanying Notes are an integral part of these consolidated financial statements.

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BANCFIRST CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

(Dollars in thousands, except per share data)

	Three Months Ended						Six Months Ended
	June 30,						June 30,
		2015			2014			2015			2014
INTEREST INCOME
Loans, including fees	$	46,490		$	45,855		$	92,439		$	88,504
Securities:
Taxable		1,458			1,502			2,857			2,807
Tax-exempt		235			273			481			553
Federal funds sold		—			—			—			1
Interest-bearing deposits with banks		1,066			1,096			2,128			2,190
Total interest income		49,249			48,726			97,905			94,055
INTEREST EXPENSE
Deposits		2,542			2,733			5,080			5,522
Short-term borrowings		1			5			2			7
Long-term borrowings		—			7			—			25
Junior subordinated debentures		491			492			982			983
Total interest expense		3,034			3,237			6,064			6,537
Net interest income		46,215			45,489			91,841			87,518
Provision for loan losses		1,271			3,129			2,605			4,347
Net interest income after provision for loan losses		44,944			42,360			89,236			83,171
NONINTEREST INCOME
Trust revenue		2,200			2,315			4,542			4,466
Service charges on deposits		14,312			14,360			27,664			27,818
Securities transactions		5,392			85			7,121			535
Income from sales of loans		549			467			989			818
Insurance commissions		3,120			3,262			7,188			7,228
Cash management		1,886			1,703			3,705			3,288
Gain on sale of other assets		41			3			81			8
Other		1,215			1,416			2,721			3,012
Total noninterest income		28,715			23,611			54,011			47,173
NONINTEREST EXPENSE
Salaries and employee benefits		27,886			27,478			55,399			53,416
Occupancy, net		2,700			2,784			5,535			5,573
Depreciation		2,449			2,375			4,913			4,724
Amortization of intangible assets		445			458			889			866
Data processing services		1,179			1,185			2,296			2,355
Net expense from other real estate owned		(184	)		(406	)		130			144
Marketing and business promotion		1,401			1,661			3,080			3,377
Deposit insurance		836			873			1,662			1,646
Other		8,717			9,449			16,448			17,592
Total noninterest expense		45,429			45,857			90,352			89,693
Income before taxes		28,230			20,114			52,895			40,651
Income tax expense		(9,677	)		(5,426	)		(18,083	)		(11,306	)
Net income	$	18,553		$	14,688		$	34,812		$	29,345
NET INCOME PER COMMON SHARE
Basic	$	1.19		$	0.94		$	2.24		$	1.90
Diluted	$	1.17		$	0.92		$	2.20		$	1.86
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $261, $(618), $(439) and $(1,021), respectively		(417	)		980			694			1,045
Reclassification adjustment for gains included in net income, net of tax of $1,302, $14, $1,536 and $34, respectively		(2,063	)		(22	)		(2,435	)		(54	)
Other comprehensive gain (loss), net of tax of $1,563, $(604), $1,097 and $(987), respectively		(2,480	)		958			(1,741	)		991
Comprehensive income	$	16,073		$	15,646		$	33,071		$	30,336

The accompanying Notes are an integral part of these consolidated financial statements.

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BANCFIRST CORPORATION

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(Unaudited)

(Dollars in thousands)

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
COMMON STOCK
Issued at beginning of period	$	15,512		$	15,364		$	15,504		$	15,334
Shares issued		50			35			58			65
Issued at end of period	$	15,562		$	15,399		$	15,562		$	15,399
CAPITAL SURPLUS
Balance at beginning of period	$	97,477		$	89,951		$	96,841		$	88,803
Common stock issued		1,080			742			1,316			1,620
Tax effect of stock options		355			325			291			248
Stock-based compensation arrangements		290			429			754			776
Balance at end of period	$	99,202		$	91,447		$	99,202		$	91,447
RETAINED EARNINGS
Balance at beginning of period	$	503,758		$	458,857		$	492,776		$	448,953
Net income		18,553			14,688			34,812			29,345
Dividends on common stock		(5,283	)		(4,784	)		(10,560	)		(9,537	)
Balance at end of period	$	517,028		$	468,761		$	517,028		$	468,761
ACCUMULATED OTHER COMPREHENSIVE INCOME
Unrealized gains on securities:
Balance at beginning of period	$	4,932		$	3,940		$	4,193		$	3,907
Net change		(2,480	)		958			(1,741	)		991
Balance at end of period	$	2,452		$	4,898		$	2,452		$	4,898
Total stockholders’ equity	$	634,244		$	580,505		$	634,244		$	580,505

The accompanying Notes are an integral part of these consolidated financial statements.

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BANCFIRST CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOW

(Unaudited)

(Dollars in thousands)

	Six Months Ended
	June 30,
	2015			2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	34,812		$	29,345
Adjustments to reconcile to net cash provided by operating activities:
Provision for loan losses		2,605			4,347
Depreciation and amortization		5,802			5,590
Net amortization of securities premiums and discounts		445			512
Realized securities gains		(7,121	)		(535	)
Gain on sales of loans		(989	)		(818	)
Cash receipts from the sale of loans originated for sale		84,029			71,074
Cash disbursements for loans originated for sale		(87,635	)		(73,306	)
Deferred income tax benefit		(1,464	)		(2,943	)
Gain on other assets		(65	)		(535	)
Increase in interest receivable		(740	)		(411	)
Decrease in interest payable		(14	)		(316	)
Amortization of stock-based compensation arrangements		754			776
Other, net		343			(1,619	)
Net cash provided by operating activities	$	30,762		$	31,161
INVESTING ACTIVITIES
Net decrease in federal funds sold	—				4,619
Net cash and due from banks received from acquisitions	—				174,283
Purchases of available for sale securities		(30,923	)		(203,890	)
Proceeds from maturities, calls and paydowns of held for investment securities		670			2,689
Proceeds from maturities, calls and paydowns of available for sale securities		12,979			163,472
Proceeds from sales of available for sale securities		8,576			1,951
Net change in loans		(10,312	)		(166,388	)
Purchases of premises, equipment and computer software		(4,797	)		(5,783	)
Proceeds from the sale of other assets		3,647			3,322
Net cash used in investing activities		(20,160	)		(25,725	)
FINANCING ACTIVITIES
Net change in deposits		(96,483	)		260
Net (decrease)/increase in short-term borrowings		(1,907	)		7,727
Paydown of long-term borrowings	—				(6,938	)
Issuance of common stock, net		1,665			1,933
Cash dividends paid		(10,544	)		(9,516	)
Net cash used in financing activities		(107,269	)		(6,534	)
Net decrease in cash, due from banks and interest-bearing deposits		(96,667	)		(1,098	)
Cash, due from banks and interest-bearing deposits at the beginning of the period		1,913,895			1,857,535
Cash, due from banks and interest-bearing deposits at the end of the period	$	1,817,228		$	1,856,437
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	$	6,078		$	6,853
Cash paid during the period for income taxes	$	17,230		$	13,770
Noncash investing and financing activities:
Unpaid common stock dividends declared	$	5,281		$	4,765

The accompanying Notes are an integral part of these consolidated financial statements.

5

BANCFIRST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(1) DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accounting and reporting policies of BancFirst Corporation and its subsidiaries (the “Company”) conform to accounting principles generally accepted in the United State of America (U.S. GAAP) and general practice within the banking industry. A summary of significant accounting policies can be found in Note (1) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Basis of Presentation

The accompanying unaudited interim consolidated financial statements include the accounts of BancFirst Corporation, Council Oak Partners, LLC, BancFirst Insurance Services, Inc. and BancFirst and its subsidiaries. The principal operating subsidiaries of BancFirst are Council Oak Investment Corporation, Council Oak Real Estate, Inc. and BancFirst Agency, Inc.  All significant intercompany accounts and transactions have been eliminated. Assets held in a fiduciary or agency capacity are not assets of the Company and, accordingly, are not included in the unaudited interim consolidated financial statements.

The accompanying unaudited interim consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q. The information contained in the financial statements and footnotes included in BancFirst Corporation’s Annual Report on Form 10-K for the year ended December 31, 2014, should be referred to in connection with these unaudited interim consolidated financial statements. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

The unaudited interim consolidated financial statements contained herein reflect all adjustments which are, in the opinion of management, necessary to provide a fair statement of the financial position and results of operations of the Company for the interim periods presented. All such adjustments are of a normal and recurring nature. There have been no significant changes in the accounting policies of the Company since December 31, 2014, the date of the most recent annual report.

Reclassifications

Certain items in prior financial statements have been reclassified to conform to the current presentation. Such reclassifications had no effect on previously reported cash flows, stockholders’ equity or comprehensive income.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States inherently involves the use of estimates and assumptions that affect the amounts reported in the financial statements and the related disclosures. These estimates relate principally to the determination of the allowance for loan losses, income taxes, the fair value of financial instruments and the valuation of intangibles. Such estimates and assumptions may change over time and actual amounts realized may differ from those reported.

Recent Accounting Pronouncements

In February 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-02, “Consolidation (Topic 810) – Amendments to the Consolidation Analysis.” ASU 2015-02 implements changes to both the variable interest consolidation model and the voting interest consolidation model. ASU 2015-02 (i) eliminates certain criteria that must be met when determining when fees paid to a decision maker or service provider do not represent a variable interest, (ii) amends the criteria for determining whether a limited partnership is a variable interest entity and (iii)  eliminates the presumption that a general partner controls a limited partnership in the voting model. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2015. Adoption of ASU 2015-02 is not expected to have a significant effect on the Company’s financial statements.

In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Topic 205-40).”  ASU 2014-15 provides guidance on management’s responsibility in evaluating whether there is substantial doubt about the Company’s ability to continue as a going concern and related footnote disclosures. For each reporting period, management will be required to evaluate whether there are conditions or events that raise substantial doubt about the Company’s ability to continue as a going concern within one year from the date the financial statements are issued.  The amendments are effective for annual periods, and

6

interim reporting periods within those annual periods, beginning after December 15, 2016. Early adoption is permitted. Adoption of ASU 2014-15 is not expected to have a significant effect on the Company’s financial statements.

In January 2014, the FASB issued Accounting Standards Update ASU No. 2014-04, “Receivables: Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (Topic 310-40).”  ASU 2014-04 clarifies that an in-substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments were effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. Adoption of ASU 2014-04 did not have a significant effect on the Company’s financial statements.

In January 2014, the FASB issued ASU No. 2014-01, “Accounting for Investments in Affordable Housing Projects (Topic 323).”  ASU 2014-01 revises the necessary criteria that need to be met in order for an entity to account for investments in affordable housing projects net of the provision for income taxes. It also changes the method of recognition from an effective amortization approach to a proportional amortization approach. Additional disclosures were also set forth in this update. The amendments were effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments were required to be applied retrospectively to all periods presented. Early adoption was permitted and adoption of the standard was optional. Adoption of ASU 2014-01 did not have a material impact on the Company's financial statements.

(2) RECENT DEVELOPMENTS, INCLUDING MERGERS AND ACQUISITIONS

In January 2015, Council Oak Investment Corporation, a wholly-owned subsidiary of BancFirst, recognized a pretax gain of approximately $1.7 million on one of its investments.

In June 2015, Council Oak Partners, LLC, a wholly-owned subsidiary of the Company, recognized a pretax gain of approximately $5.3 million on one of its investments.

On July 14, 2015, the Company announced it had entered into an agreement to acquire CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma. See Note (12) Subsequent Event.  

(3) SECURITIES

The following table summarizes securities held for investment and securities available for sale:

	June 30, 2015		December 31, 2014
	(Dollars in thousands)
Held for investment, at cost (fair value: $7,991 and $8,671, respectively)	$	7,923	$	8,593
Available for sale, at fair value		529,396		516,190
Total	$	537,319	$	524,783

The following table summarizes the amortized cost and estimated fair values of securities held for investment:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
June 30, 2015	(Dollars in thousands)
Mortgage backed securities (1)	$	406	$	26	$	—	$	432
States and political subdivisions		7,517		42		—		7,559
Total	$	7,923	$	68	$	—	$	7,991
December 31, 2014
Mortgage backed securities (1)	$	471	$	34	$	—	$	505
States and political subdivisions		8,122		44		—		8,166
Total	$	8,593	$	78	$	—	$	8,671

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The following table summarizes the amortized cost and estimated fair values of securities available for sale:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
June 30, 2015	(Dollars in thousands)
U.S. treasuries	$	279,414	$	1,571	$	—		$	280,985
U.S. federal agencies		165,090		1,055		(28	)		166,117
Mortgage backed securities (1)		23,793		526		(549	)		23,770
States and political subdivisions		47,560		1,457		(40	)		48,977
Other securities (2)		9,540		204		(197	)		9,547
Total	$	525,397	$	4,813	$	(814	)	$	529,396
December 31, 2014
U.S. treasuries	$	248,767	$	404	$	(178	)	$	248,993
U.S. federal agencies		171,641		983		(175	)		172,449
Mortgage backed securities (1)		26,441		602		(586	)		26,457
States and political subdivisions		51,706		1,716		(49	)		53,373
Other securities (2)		10,798		4,252		(132	)		14,918
Total	$	509,353	$	7,957	$	(1,120	)	$	516,190

(1) Primarily consists of FHLMC, FNMA, GNMA and mortgage backed securities through U.S. agencies.

(2) Primarily consists of equity securities.

The unrealized gains decreased in 2015 primarily due to the reclassification of an unrealized gain on one investment of $3.3 million from other comprehensive income to a realized gain by Council Oak Partners, LLC, a wholly-owned subsidiary of the Company. The realized gain is reported as securities transactions within the noninterest income section of the consolidated statement of comprehensive income.

The maturities of securities held for investment and available for sale are summarized in the following table using contractual maturities. Actual maturities may differ from contractual maturities due to obligations that are called or prepaid. For purposes of the maturity table, mortgage-backed securities, which are not due at a single maturity date, have been presented at their contractual maturity.

	June 30, 2015				December 31, 2014
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	1,308	$	1,317	$	1,451	$	1,456
After one year but within five years		6,244		6,277		6,603		6,642
After five years but within ten years		237		249		380		396
After ten years		134		148		159		177
Total	$	7,923	$	7,991	$	8,593	$	8,671
Available for Sale
Contractual maturity of debt securities:
Within one year	$	166,121	$	166,327	$	41,772	$	41,870
After one year but within five years		256,716		259,037		350,975		352,044
After five years but within ten years		15,810		16,491		21,990		22,717
After ten years		80,657		81,449		87,252		88,132
Total debt securities		519,304		523,304		501,989		504,763
Equity securities		6,093		6,092		7,364		11,427
Total	$	525,397	$	529,396	$	509,353	$	516,190

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The following table is a summary of the Company’s book value of securities that were pledged as collateral for public funds on deposit, repurchase agreements and for other purposes as required or permitted by law:

	June 30, 2015		December 31, 2014
	(Dollarsin thousands)
Book value of pledged securities	$	463,877	$	522,190

(4) LOANS AND ALLOWANCE FOR LOAN LOSSES

The following is a schedule of loans outstanding by category:

	June 30, 2015					December 31, 2014
	Amount		Percent			Amount		Percent
	(Dollars in thousands)
Commercial and financial:
Commercial and industrial	$	741,595		19.22	%	$	745,106		19.35	%
Oil & gas production and equipment		88,488		2.29			104,940		2.72
Agriculture		117,729		3.05			132,830		3.45
State and political subdivisions:
Taxable		17,884		0.46			20,431		0.53
Tax-exempt		27,687		0.72			20,952		0.54
Real estate:
Construction		363,067		9.41			356,621		9.26
Farmland		148,500		3.85			149,507		3.88
One to four family residences		785,170		20.35			766,362		19.90
Multifamily residential properties		64,366		1.67			66,766		1.73
Commercial		1,200,331		31.11			1,191,477		30.94
Consumer		270,172		7.00			267,179		6.94
Other (not classified above)		33,343		0.87			29,227		0.76
Total loans	$	3,858,332		100.00	%	$	3,851,398		100.00	%

The Company’s loans are mostly to customers within Oklahoma and over 65% of the loans are secured by real estate.  Credit risk on loans is managed through limits on amounts loaned to individual borrowers, underwriting standards and loan monitoring procedures. The amounts and types of collateral obtained, if any, to secure loans are based upon the Company’s underwriting standards and management’s credit evaluation. Collateral varies, but may include real estate, equipment, accounts receivable, inventory, livestock and securities. The Company’s interest in collateral is secured through filing mortgages and liens, and in some cases, by possession of the collateral.

Accounting policies related to appraisals, nonaccruals and charge-offs are disclosed in Note (1) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Nonperforming and Restructured Assets

The following is a summary of nonperforming and restructured assets:

	June 30,		December 31,
	2015		2014
	(Dollars in thousands)
Past due 90 days or more and still accruing	$	1,311	$	1,135
Nonaccrual		32,177		16,410
Restructured		15,702		16,515
Total nonperforming and restructured loans		49,190		34,060
Other real estate owned and repossessed assets		7,521		8,079
Total nonperforming and restructured assets	$	56,711	$	42,139

Nonaccrual loans, accruing loans past due 90 days or more, and restructured loans are shown in the table above. Had nonaccrual loans performed in accordance with their original contractual terms, the Company would have recognized additional interest income of approximately $922,000 for the six months ended June 30, 2015 and approximately $481,000 for the six months ended June 30, 2014.

9

Restructured loans consisted primarily of one relationship restructured to defer principal payments. The relationship was evaluated by management and determined to be well collateralized.  Additionally, none of the concessions granted involved a principal reduction or a change from the current market rate of interest.  The collateral value is monitored periodically to evaluate possible impairment. The Company charges interest on principal balances outstanding during deferral periods. As a result, the current and future financial effects of the recorded balance of loans considered to be restructured were not considered to be material.

Loans are segregated into classes based upon the nature of the collateral and the borrower. These classes are used to estimate the credit risk component in the allowance for loan losses.

The following table is a summary of amounts included in nonaccrual loans, segregated by class of loans. Residential real estate refers to one-to-four family real estate.

	June 30, 2015		December 31, 2014
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	192	$	296
Non-residential real estate other		4,937		5,126
Residential real estate permanent mortgage		777		681
Residential real estate all other		1,479		1,796
Commercial and financial:
Non-consumer non-real estate		18,522		1,556
Consumer non-real estate		220		250
Other loans		1,629		1,659
Acquired loans		4,421		5,046
Total	$	32,177	$	16,410

The following table presents an age analysis of past due loans, segregated by class of loans:

	Age Analysis of Past Due Loans
	30-59 Days Past Due		60-89 Days Past Due		90 Days and Greater		Total Past Due Loans		Current Loans		Total Loans		Accruing Loans 90 Days or More Past Due
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	235	$	—	$	159	$	394	$	492,117	$	492,511	$	159
Non-residential real estate other		914		—		825		1,739		961,559		963,298		—
Residential real estate permanent mortgage		865		659		487		2,011		320,538		322,549		219
Residential real estate all other		2,954		233		1,122		4,309		638,649		642,958		326
Commercial and financial:
Non-consumer non-real estate		16,192		1,671		1,300		19,163		919,622		938,785		357
Consumer non-real estate		1,403		693		317		2,413		252,336		254,749		213
Other loans		891		567		485		1,943		155,372		157,315		—
Acquired loans		525		676		1,472		2,673		83,494		86,167		37
Total	$	23,979	$	4,499	$	6,167	$	34,645	$	3,823,687	$	3,858,332	$	1,311
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	635	$	—	$	269	$	904	$	482,731	$	483,635	$	70
Non-residential real estate other		377		317		825		1,519		952,484		954,003		—
Residential real estate permanent mortgage		2,010		758		544		3,312		304,267		307,579		172
Residential real estate all other		1,820		194		1,488		3,502		633,586		637,088		387
Commercial and financial:
Non-consumer non-real estate		841		71		793		1,705		965,002		966,707		24
Consumer non-real estate		1,914		711		330		2,955		244,810		247,765		215
Other loans		1,858		916		741		3,515		149,469		152,984		—
Acquired loans		1,815		997		1,304		4,116		97,521		101,637		267
Total	$	11,270	$	3,964	$	6,294	$	21,528	$	3,829,870	$	3,851,398	$	1,135

10

Impaired Loans

Loans are considered impaired when, based on current information and events, it is probable the Company will be unable to collect the full amount of scheduled principal and interest payments in accordance with the original contractual terms of the loan agreement. If a loan is impaired, a specific valuation allowance may be allocated if necessary so that the loan is reported, net of allowance for loss, at the present value of future cash flows using the loan’s existing rate, or the fair value of collateral if repayment is expected solely from the collateral.

The following table presents impaired loans, segregated by class of loans. No material amount of interest income was recognized on impaired loans subsequent to their classification as impaired.

	Impaired Loans
	Unpaid Principal Balance		Recorded Investment with Allowance		Related Allowance		Average Recorded Investment
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	467	$	386	$	14	$	393
Non-residential real estate other		22,354		20,184		1,316		20,553
Residential real estate permanent mortgage		1,324		1,107		85		941
Residential real estate all other		2,122		1,889		202		2,058
Commercial and financial:
Non-consumer non-real estate		19,328		18,879		4,503		6,740
Consumer non-real estate		612		597		119		536
Other loans		2,056		1,628		80		1,699
Acquired loans		8,183		5,153		—		7,120
Total	$	56,446	$	49,823	$	6,319	$	40,040
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	521	$	448	$	15	$	453
Non-residential real estate other		23,154		21,164		1,364		21,522
Residential real estate permanent mortgage		1,095		880		85		1,042
Residential real estate all other		2,480		2,270		299		2,273
Commercial and financial:
Non-consumer non-real estate		1,895		1,580		431		1,646
Consumer non-real estate		664		648		138		602
Other loans		2,101		1,659		228		1,512
Acquired loans		10,933		7,708		—		8,082
Total	$	42,843	$	36,357	$	2,560	$	37,132

Credit Risk Monitoring and Loan Grading

The Company considers various factors to monitor the credit risk in the loan portfolio including volume and severity of loan delinquencies, nonaccrual loans, internal grading of loans, historical loan loss experience and economic conditions.

An internal risk grading system is used to indicate the credit risk of loans. The loan grades used by the Company are for internal risk identification purposes and do not directly correlate to regulatory classification categories or any financial reporting definitions.

The general characteristics of the risk grades are disclosed in Note (5) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

11

The following table presents internal loan grading by class of loans:

	Internal Loan Grading
	Grade
		1		2		3		4		5	Total
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	407,818	$	78,987	$	5,455	$	251	$	—	$	492,511
Non-residential real estate other		809,293		119,551		29,517		4,937		—		963,298
Residential real estate permanent mortgage		283,951		30,254		7,295		1,049		—		322,549
Residential real estate all other		529,071		101,307		10,608		1,972		—		642,958
Commercial and financial:
Non-consumer non-real estate		773,811		133,243		13,080		18,651		—		938,785
Consumer non-real estate		239,719		12,349		2,154		524		3		254,749
Other loans		150,841		3,511		2,677		286		—		157,315
Acquired loans		41,592		30,532		9,277		4,476		290		86,167
Total	$	3,236,096	$	509,734	$	80,063	$	32,146	$	293	$	3,858,332
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	402,706	$	75,555	$	5,008	$	366	$	—	$	483,635
Non-residential real estate other		795,209		133,542		20,126		5,126		—		954,003
Residential real estate permanent mortgage		272,411		27,855		6,369		944		—		307,579
Residential real estate all other		529,555		99,214		6,146		2,173		—		637,088
Commercial and financial:
Non-consumer non-real estate		821,094		117,457		26,550		1,606		—		966,707
Consumer non-real estate		233,424		12,229		1,548		564		—		247,765
Other loans		147,758		4,261		601		173		191		152,984
Acquired loans		46,465		36,951		12,651		5,206		364		101,637
Total	$	3,248,622	$	507,064	$	78,999	$	16,158	$	555	$	3,851,398

Allowance for Loan Losses Methodology

The allowance for loan losses (“ALL”) methodology is disclosed in Note (5) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

12

The following table details activity in the ALL by class of loans for the period presented. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.

	ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period
	(Dollars in thousands)
Three Months Ended June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,461	$	—		$	—	$	—		$	42		$	4,503
Non-residential real estate other		9,898		—			1		1			(19	)		9,880
Residential real estate permanent mortgage		2,984		(56	)		5		(51	)		177			3,110
Residential real estate all other		6,578		(7	)		4		(3	)		(90	)		6,485
Commercial and financial:
Non-consumer non-real estate		13,068		(16	)		7		(9	)		654			13,713
Consumer non-real estate		2,327		(103	)		40		(63	)		235			2,499
Other loans		2,241		(50	)		—		(50	)		240			2,431
Acquired loans		—		(34	)		2		(32	)		32			—
Total	$	41,557	$	(266	)	$	59	$	(207	)	$	1,271		$	42,621
Six Months Ended June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,406	$	(1	)	$	1	$	—		$	97		$	4,503
Non-residential real estate other		9,616		—			1		1			263			9,880
Residential real estate permanent mortgage		2,948		(96	)		14		(82	)		244			3,110
Residential real estate all other		6,269		(75	)		9		(66	)		282			6,485
Commercial and financial:
Non-consumer non-real estate		12,771		(169	)		38		(131	)		1,073			13,713
Consumer non-real estate		2,404		(230	)		55		(175	)		270			2,499
Other loans		2,359		(263	)		9		(254	)		326			2,431
Acquired loans		116		(194	)		28		(166	)		50			—
Total	$	40,889	$	(1,028	)	$	155	$	(873	)	$	2,605		$	42,621

13

	ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period
	(Dollars in thousands)
Three Months Ended June 30, 2014
Real estate:
Non-residential real estate owner occupied	$	5,012	$	(18	)	$	34	$	16		$	213		$	5,241
Non-residential real estate other		10,685		—			—		—			553			11,238
Residential real estate permanent mortgage		3,237		(32	)		31		(1	)		74			3,310
Residential real estate all other		6,485		(44	)		10		(34	)		364			6,815
Commercial and financial:
Non-consumer non-real estate		9,703		(61	)		16		(45	)		2,309			11,967
Consumer non-real estate		2,573		(190	)		46		(144	)		216			2,645
Other loans		2,072		(188	)		110		(78	)		(1	)		1,993
Acquired loans		157		(148	)		678		530			(599	)		88
Total	$	39,924	$	(681	)	$	925	$	244		$	3,129		$	43,297
Six Months Ended June 30, 2014
Real estate:
Non-residential real estate owner occupied	$	4,827	$	(22	)	$	65	$	43		$	371		$	5,241
Non-residential real estate other		11,026		—			3		3			209			11,238
Residential real estate permanent mortgage		2,825		(162	)		41		(121	)		606			3,310
Residential real estate all other		6,708		(93	)		14		(79	)		186			6,815
Commercial and financial:
Non-consumer non-real estate		8,977		(131	)		30		(101	)		3,091			11,967
Consumer non-real estate		2,556		(331	)		108		(223	)		312			2,645
Other loans		1,991		(251	)		127		(124	)		126			1,993
Acquired loans		124		(165	)		683		518			(554	)		88
Total	$	39,034	$	(1,155	)	$	1,071	$	(84	)	$	4,347		$	43,297

The following table details the amount of ALL by class of loans for the period presented, detailed on the basis of the impairment methodology used by the Company.

	ALL
	June 30, 2015				December 31, 2014
	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied.	$	214	$	4,289	$	202	$	4,204
Non-residential real estate other		1,851		8,029		1,518		8,098
Residential real estate permanent mortgage		448		2,662		407		2,541
Residential real estate all other		935		5,550		743		5,526
Commercial and financial:
Non-consumer non-real estate		5,779		7,934		4,671		8,100
Consumer non-real estate		421		2,078		372		2,032
Other loans		56		2,375		214		2,145
Acquired loans		—		—		—		116
Total	$	9,704	$	32,917	$	8,127	$	32,762

14

The following table details the loans outstanding by class of loans for the period presented, on the basis of the impairment methodology used by the Company.

	Loans
	June 30, 2015						December 31, 2014
	Individually evaluated for impairment		Collectively evaluated for impairment		Loans acquired with deteriorated credit quality		Individually evaluated for impairment		Collectively evaluated for impairment		Loans acquired with deteriorated credit quality
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	5,706	$	486,805	$	—	$	5,374	$	478,261	$	—
Non-residential real estate other		34,454		928,844		—		25,251		928,752		—
Residential real estate permanent mortgage		8,344		314,205		—		7,313		300,266		—
Residential real estate all other		12,580		630,378		—		8,319		628,769		—
Commercial and financial:
Non-consumer non-real estate		31,731		907,054		—		28,156		938,551		—
Consumer non-real estate		2,682		252,067		—		2,112		245,653		—
Other loans		229		157,086		—		233		152,751		—
Acquired loans		—		72,124		14,043		—		83,416		18,221
Total	$	95,726	$	3,748,563	$	14,043	$	76,758	$	3,756,419	$	18,221

Transfers from Loans

Transfers from loans to other real estate owned and repossessed assets are non-cash transactions, and are not included in the statements of cash flow. Transfers from loans to other real estate owned and repossessed assets during the periods presented, are summarized as follows:

	Six Months Ended June 30,
	2015		2014
	(Dollars in thousands)
Other real estate owned	$	2,522	$	525
Repossessed assets		424		722
Total	$	2,946	$	1,247

(5) INTANGIBLE ASSETS

The following is a summary of intangible assets:

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in thousands)
As of June 30, 2015
Core deposit intangibles	$	13,198	$	(6,720	)	$	6,478
Customer relationship intangibles		5,699		(2,880	)		2,819
Mortgage servicing intangibles		595		(211	)		384
Total	$	19,492	$	(9,811	)	$	9,681
As of December 31, 2014
Core deposit intangibles	$	13,198	$	(6,013	)	$	7,185
Customer relationship intangibles		5,699		(2,699	)		3,000
Mortgage servicing intangibles		643		(193	)		450
Total	$	19,540	$	(8,905	)	$	10,635

15

The following is a summary of goodwill by business segment:

						Other		Executive,
	Metropolitan		Community			Financial		Operations
	Banks		Banks			Services		& Support		Consolidated
	(Dollars in thousands)
Balance at December 31, 2014	$	8,078	$	30,970		$	5,464	$	450	$	44,962
Impairment		—		(368	)		—		—		(368	)
Balance at June 30, 2015	$	8,078	$	30,602		$	5,464	$	450	$	44,594

In June 2015, the Company recorded an impairment loss of $368,000 after adopting a plan in the second quarter to close a small branch and leave a full-service ATM to serve the community.   

Additional information for intangible assets can be found in Note (7) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

(6) STOCK-BASED COMPENSATION

The Company adopted a nonqualified incentive stock option plan (the “BancFirst ISOP”) in May 1986. The Company amended the BancFirst ISOP to increase the number of shares to be issued under the plan to 3,000,000 shares in May 2013. At June 30, 2015, 39,485 shares were available for future grants. The BancFirst ISOP will terminate on December 31, 2019. The options are exercisable beginning four years from the date of grant at the rate of 25% per year for four years. Options expire at the end of fifteen years from the date of grant. Options outstanding as of June 30, 2015 will become exercisable through the year 2022. The option price must be no less than 100% of the fair value of the stock relating to such option at the date of grant.

In June 1999, the Company adopted the BancFirst Corporation Non-Employee Directors’ Stock Option Plan (the “BancFirst Directors’ Stock Option Plan”). Each non-employee director is granted an option for 10,000 shares. The Company amended the BancFirst Directors’ Stock Option Plan to increase the number of shares to be issued under the plan to 230,000 shares in May 2014. At June 30, 2015, 20,000 shares were available for future grants. The options are exercisable beginning one year from the date of grant at the rate of 25% per year for four years, and expire at the end of fifteen years from the date of grant. Options outstanding as of June 30, 2015 will become exercisable through the year 2018. The option price must be no less than 100% of the fair value of the stock relating to such option at the date of grant.

The Company currently uses newly issued stock to satisfy stock-based exercises, but reserves the right to use treasury stock purchased under the Company’s Stock Repurchase Program (the “SRP”) in the future.

The following table is a summary of the activity under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:

						Wgtd. Avg.
				Wgtd. Avg.		Remaining	Aggregate
				Exercise		Contractual	Intrinsic
	Options			Price		Term	Value
	(Dollars in thousands, except per share data)
Six Months Ended June 30, 2015
Outstanding at December 31, 2014		1,029,657		$	36.55
Options granted		98,000			60.02
Options exercised		(57,250	)		23.64
Options canceled, forfeited, or expired		(22,500	)		37.14
Outstanding at June 30, 2015		1,047,907			39.44	8.88 Yr	$	27,260
Exercisable at June 30, 2015		475,682			31.54	5.21 Yr	$	16,131

16

The following table has additional information regarding options granted and options exercised under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Weighted average grant-date fair value per share of options granted	$	12.07	$	12.33	$	11.51	$	12.33
Total intrinsic value of options exercised		1,892		1,301		2,129		2,046
Cash received from options exercised		1,109		776		1,353		1,642
Tax benefit realized from options exercised		731		503		823		791

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model and is based on certain assumptions including risk-free rate of return, dividend yield, stock price volatility and the expected term.  The fair value of each option is expensed over its vesting period.

The following table is a summary of the Company’s recorded stock-based compensation expense:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Stock-based compensation expense	$	290	$	429	$	754	$	776
Tax benefit		112		166		292		300
Stock-based compensation expense, net of tax	$	178	$	263	$	462	$	476

The Company will continue to amortize the remaining fair value of stock options over the remaining vesting period of approximately seven years.  The following table shows the remaining fair value of stock options:

	June 30, 2015
	(Dollars in thousands)
Fair value of stock options	$	4,459

The following table shows the assumptions used for computing stock-based compensation expense under the fair value method during the periods presented:

	Six Months Ended June 30,
	2015	2014
Risk-free interest rate	1.83 to 2.26%	2.54%
Dividend yield	2.00%	2.00%
Stock price volatility	18.23 to 19.22%	18.98%
Expected term	10 Yrs	10 Yrs

The risk-free interest rate is determined by reference to the spot zero-coupon rate for the U.S. Treasury security with a maturity similar to the expected term of the options.  The dividend yield is the expected yield for the expected term.  The stock price volatility is estimated from the recent historical volatility of the Company’s stock.  The expected term is estimated from the historical option exercise experience.

(7) STOCKHOLDERS’ EQUITY

In November 1999, the Company adopted a Stock Repurchase Program (the “SRP”). The SRP may be used as a means to increase earnings per share and return on equity, to purchase treasury stock for the exercise of stock options or for distributions under the Deferred Stock Compensation Plan, to provide liquidity for optionees to dispose of stock from exercises of their stock options and to provide liquidity for stockholders wishing to sell their stock. All shares repurchased under the SRP have been retired and not held as treasury stock. The timing, price and amount of stock repurchases under the SRP may be determined by management and approved by the Company’s Executive Committee.

17

The following table is a summary of the shares under the program:

	Six Months Ended June 30,
	2015		2014
Number of shares repurchased		—		—
Average price of shares repurchased		—		—
Shares remaining to be repurchased		194,723		194,723

The Company and BancFirst are subject to risk-based capital guidelines issued by the Board of Governors of the Federal Reserve System and the Federal Deposit Insurance Corporation (“FDIC”). These guidelines are used to evaluate capital adequacy and involve both quantitative and qualitative evaluations of the Company’s and BancFirst’s assets, liabilities and certain off-balance-sheet items calculated under regulatory practices. Failure to meet the minimum capital requirements can initiate certain mandatory or discretionary actions by the regulatory agencies that could have a direct material effect on the Company’s financial statements. Management believes that as of June 30, 2015, the Company and BancFirst met all capital adequacy requirements to which they are subject.  The actual and required capital amounts and ratios are shown in the following table:

						Required					To Be Well
						For Capital					Capitalized Under
						Adequacy					Prompt Corrective
	Actual					Purposes					Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of June 30, 2015:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	652,100		15.61	%	$	334,229		8.00	%	N/A		N/A
BancFirst		598,091		14.40	%		332,259		8.00	%	$	415,324		10.00	%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	583,479		13.97	%	$	188,004		4.50	%	N/A		N/A
BancFirst		535,470		12.89	%		186,896		4.50	%	$	269,960		6.50	%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	609,479		14.59	%	$	250,672		6.00	%	N/A		N/A
BancFirst		555,470		13.37	%		249,194		6.00	%	$	332,259		8.00	%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	609,479		9.45	%	$	259,959		4.00	%	N/A		N/A
BancFirst		555,470		8.62	%		259,366		4.00	%	$	324,207		5.00	%

As of June 30, 2015, the most recent notification from the Federal Reserve Bank of Kansas City and the FDIC categorized BancFirst as “well capitalized” under the regulatory framework from prompt corrective action. The Company’s trust preferred securities have continued to be included in Tier 1 capital as the Company’s total assets do not exceed $15 billion. There are no conditions or events since the most recent notifications of BancFirst’s capital category that management believes would materially change its category under capital requirements existing as of the report date.

Basel III Capital Rules

The Basel III Capital Rules were effective for the Company and BancFirst on January 1, 2015 (subject to a 4-year phase-in period).

The Basel III Capital Rules, among other things, (i) introduce a new capital measure called “Common Equity Tier 1” (“CET1”), (ii) specify that Tier 1 capital consist of CET1 and “Additional Tier 1 capital” instruments meeting specified requirements, (iii) define CET1 narrowly by requiring that most deductions/adjustments to regulatory capital measures be made to CET1 and not to the other components of capital and (iv) expand the scope of the deductions/adjustments as compared to existing regulations.

Implementation of the deductions and other adjustments to CET1 began on January 1, 2015 and will be phased-in over a 4-year period (beginning at 40% on January 1, 2015 and an additional 20% per year thereafter). Under the new rule, in order to avoid limitations on capital distributions, including dividend payments and certain discretionary bonus payments to executive officers, a banking organization must hold a capital conservation buffer composed of CET1 capital above its minimum risk-based capital

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requirements. The implementation of the capital conservation buffer will begin on January 1, 2016 at the 0.625% level and be phased in over a four-year period (increasing by that amount on each subsequent January 1, until it reaches 2.5% on January 1, 2019).

Management believes that, as of June 30, 2015, the Company and BancFirst would meet all capital adequacy requirements under the Basel III Capital Rules on a fully phased-in basis as if such requirements were currently in effect.

(8) NET INCOME PER COMMON SHARE

Basic and diluted net income per common share are calculated as follows:

	Income (Numerator)		Shares (Denominator)		Per Share Amount
	(Dollars in thousands, except per share data)
Three Months Ended June 30, 2015
Basic
Income available to common stockholders	$	18,553		15,536,325	$	1.19
Effect of stock options		—		328,599
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	18,553		15,864,924	$	1.17
Three Months Ended June 30, 2014
Basic
Income available to common stockholders	$	14,688		15,468,511	$	0.94
Effect of stock options		—		363,669
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	14,688		15,832,180	$	0.92
Six Months Ended June 30, 2015
Basic
Income available to common stockholders	$	34,812		15,521,916	$	2.24
Effect of stock options		—		330,616
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	34,812		15,852,532	$	2.20
Six Months Ended June 30, 2014
Basic
Income available to common stockholders	$	29,345		15,405,847	$	1.90
Effect of stock options		—		353,942
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	29,345		15,759,789	$	1.86

The following table shows the number and average exercise price of options that were excluded from the computation of diluted net income per common share for each period because the options’ exercise prices were greater than the average market price of the common shares:

	Shares		Average ExercisePrice
Three Months Ended June 30, 2015		168,065	$	58.14
Three Months Ended June 30, 2014		59,286		54.89
Six Months Ended June 30, 2015		148,475	$	57.94
Six Months Ended June 30, 2014		67,155		54.15

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(9) FAIR VALUE MEASUREMENTS

Accounting standards define fair value as the price that would be received to sell an asset or the price paid to transfer a liability in the principal or most advantageous market available to the entity in an orderly transaction between market participants on the measurement date.

FASB ASC Topic 820 establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.  The fair value hierarchy is as follows:

· Level 1 Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

· Level 2 Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset and liability, either directly or indirectly, for substantially the full term of the financial instrument.

· Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. This category includes certain impaired loans, foreclosed assets, other real estate, goodwill and other intangible assets.

Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis

A description of the valuation methodologies and key inputs used to measure financial assets and financial liabilities at fair value on a recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. These valuation methodologies were applied to the following categories of the Company’s financial assets and financial liabilities.

Securities Available for Sale

Securities classified as available for sale are reported at fair value. U.S. Treasuries are valued using Level 1 inputs. Other securities available for sale including U.S. federal agencies, registered mortgage backed securities and state and political subdivisions are valued using prices from an independent pricing service utilizing Level 2 data. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. The Company also invests in private label mortgage backed securities and equity securities classified as available for sale for which observable information is not readily available. These securities are reported at fair value utilizing Level 3 inputs. For these securities, management determines the fair value based on replacement cost, the income approach or information provided by outside consultants or lead investors.

The Company reviews the prices for Level 1 and Level 2 securities supplied by the independent pricing service for reasonableness and to ensure such prices are aligned with traditional pricing matrices. In general, the Company does not purchase investment portfolio securities that are esoteric or that have complicated structures. The Company’s entire portfolio consists of traditional investments including U.S. Treasury obligations, federal agency mortgage pass-through securities, general obligation municipal bonds and a small amount of municipal revenue bonds. Pricing for such instruments is fairly generic and is easily obtained. For in-state bond issues that have relatively low issue sizes and liquidity, the Company utilizes the same parameters for pricing mentioned in the preceding paragraph adjusted for the specific issue. From time to time, the Company will validate, on a sample basis, prices supplied by the independent pricing service by comparison to prices obtained from third party sources.

Derivatives

Derivatives are reported at fair value utilizing Level 2 inputs.  The Company obtains dealer and market quotations to value its oil and gas swaps and options.  The Company utilizes dealer quotes and observable market data inputs to substantiate internal valuation models.

Loans Held For Sale

The Company originates mortgage loans to be sold.  At the time of origination, the acquiring bank has already been determined and the terms of the loan, including interest rate, have already been set by the acquiring bank, allowing the Company to originate the loan at fair value.  Mortgage loans are generally sold within 30 days of origination.  Loans held for sale are valued using Level 2 inputs.  Gains or losses recognized upon the sale of the loans are determined on a specific identification basis.

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Mortgage Servicing Intangibles

The Company acquired mortgage servicing intangibles with the acquisition of 1^st Bank Oklahoma on July 12, 2011. Mortgage Servicing Intangibles are amortized based on current prepayment assumptions and are adjusted to fair value semi-annually, if impaired. Fair value is estimated based on the present value of future cash flows over several interest rate scenarios, which are then discounted at risk-adjusted rates. The Company considers portfolio characteristics, contractually specified servicing fees, prepayment assumptions, delinquency rates, late charges, other ancillary revenue, costs to service and other economic factors. When available, fair value estimates and assumptions are compared to observable market data and the recent market activity and actual portfolio experience.

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of the periods presented, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Fair Value
	(Dollars in thousands)
June 30, 2015
Securities available for sale:
U.S. Treasury	$	280,985	$	—	$	—	$	280,985
U.S. federal agencies		—		166,117		—		166,117
Mortgage-backed securities		—		8,313		15,457		23,770
States and political subdivisions		—		48,977		—		48,977
Other securities		—		3,455		6,092		9,547
Derivative assets		—		2,903		—		2,903
Derivative liabilities		—		1,602		—		1,602
Loans held for sale		—		13,587		—		13,587
Mortgage servicing intangibles		—		—		384		384
December 31, 2014
Securities available for sale:
U.S. Treasury	$	248,993	$	—	$	—	$	248,993
U.S. federal agencies		—		172,449		—		172,449
Mortgage-backed securities		—		9,425		17,032		26,457
States and political subdivisions		—		53,373		—		53,373
Other securities		—		3,491		11,427		14,918
Derivative assets		—		6,124		—		6,124
Derivative liabilities		—		4,756		—		4,756
Loans held for sale		—		9,433		—		9,433
Mortgage servicing intangibles		—		—		450		450

The changes in Level 3 assets measured at estimated fair value on a recurring basis during the periods presented were as follows:

	Six Months Ended June 30
	2015			2014
	(Dollars in thousands)
Balance at the beginning of the year	$	28,909		$	32,002
Purchases, issuances and settlements		(1,409	)		(2,287	)
Sales		(8,593	)		(499	)
Gains included in earnings		7,055			382
Total unrealized losses		(4,029	)		732
Balance at the end of the period	$	21,933		$	30,330

The Company’s policy is to recognize transfers in and transfers out of Levels 1, 2 and 3 as of the end of the reporting period. During the six months ended June 30, 2015 and 2014, the Company did not transfer any securities between levels in the fair value hierarchy.

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Financial Assets and Financial Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). These financial assets and financial liabilities are reported at fair value utilizing Level 3 inputs.

Impaired loans are reported at the fair value of the underlying collateral if repayment is dependent on liquidation of the collateral. In no case does the fair value of an impaired loan exceed the fair value of the underlying collateral. The impaired loans are adjusted to fair value through a specific allocation of the allowance for loan losses or a direct charge-down of the loan.

Foreclosed assets, upon initial recognition, are measured and adjusted to fair value through a charge-off to the allowance for possible loan losses based upon the fair value of the foreclosed asset.

Other real estate owned is revalued at fair value subsequent to initial recognition, with any losses recognized in net expense from other real estate owned.

The following table summarizes assets measured at fair value on a nonrecurring basis and the related losses recognized during the period:

	Total Fair Value            Level 3		Losses
	(Dollars in thousands)
As of and for the Year-to-date Period Ended June 30, 2015
Impaired loans (less specific allowance)	$	43,504	$	—
Foreclosed assets		164		—
Other real estate owned		7,357		27
As of and for the Year-to-date Period Ended December 31, 2014
Impaired loans (less specific allowance)	$	33,797	$	—
Foreclosed assets		220		—
Other real estate owned		7,859		730

Estimated Fair Value of Financial Instruments

The Company is required under current authoritative accounting guidance to disclose the estimated fair value of their financial instruments that are not recorded at fair value. For the Company, as for most financial institutions, substantially all of its assets and liabilities are considered financial instruments. A financial instrument is defined as cash, evidence of an ownership interest in an entity or a contract that creates a contractual obligation or right to deliver or receive cash or another financial instrument from a second entity. The following methods and assumptions were used to estimate the fair value of each class of financial instruments:

Cash and Cash Equivalents Include: Cash and Due from Banks; Federal Funds Sold and Interest-Bearing Deposits

The carrying amount of these short-term instruments is a reasonable estimate of fair value.

Securities Held for Investment

For securities held for investment, which are generally traded in secondary markets, fair values are based on quoted market prices or dealer quotes, if available. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities making adjustments for credit or liquidity if applicable.

Loans

For certain homogeneous categories of loans, such as some residential mortgages, fair values are estimated using the quoted market prices for securities backed by similar loans, adjusted for differences in loan characteristics. The fair values of other types of loans are estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

Deposits

The fair values of transaction and savings accounts are the amounts payable on demand at the reporting date. The fair values of fixed-maturity certificates of deposit are estimated using the rates currently offered for deposits of similar remaining maturities.

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Short-term Borrowings

The amounts payable on these short-term instruments are reasonable estimates of fair value.

Long-term Borrowings

The fair values of fixed-rate long-term borrowings are estimated using the rates that would be charged for borrowings of similar remaining maturities.

Junior Subordinated Debentures

The fair values of junior subordinated debentures are estimated using the rates that would be charged for junior subordinated debentures of similar remaining maturities.

Loan Commitments and Letters of Credit

The fair values of commitments are estimated using the fees currently charged to enter into similar agreements, taking into account the terms of the agreements. The fair values of letters of credit are based on fees currently charged for similar agreements.

The estimated fair values of the Company’s financial instruments that are reported at amortized cost in the Company’s consolidated balance sheets, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value, are as follows:

	June 30,				December 31,
	2015				2014
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,817,228	$	1,817,228	$	1,913,895	$	1,913,895
Securities held for investment		7,923		7,991		8,593		8,671
Level 3 inputs:
Loans, net of allowance for loan losses		3,815,711		3,853,964		3,810,509		3,847,791
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,808,221		5,131,120		5,904,704		5,945,502
Short-term borrowings		2,075		2,075		3,982		3,982
Junior subordinated debentures		26,804		29,806		26,804		31,200
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,666				1,640
Letters of credit				485				478

Non-financial Assets and Non-financial Liabilities Measured at Fair Value

The Company has no non-financial assets or non-financial liabilities measured at fair value on a recurring basis. Certain non-financial assets and non-financial liabilities measured at fair value on a nonrecurring basis include intangible assets (excluding mortgage service rights, which are valued semi-annually) and other non-financial long-lived assets measured at fair value and adjusted for impairment. These items are evaluated at least annually for impairment. The overall levels of non-financial assets and non-financial liabilities measured at fair value on a nonrecurring basis were not considered to be significant to the Company at June 30, 2015 or December 31, 2014.

(10) DERIVATIVE FINANCIAL INSTRUMENTS

The Company enters into oil and gas swaps and options contracts to accommodate the business needs of its customers.  Upon the origination of an oil or gas swap or option contract with a customer, the Company simultaneously enters into an offsetting contract with a counterparty to mitigate the exposure to fluctuations in oil and gas prices.  These derivatives are not designated as hedged instruments and are recorded on the Company’s consolidated balance sheet at fair value.

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The Company utilizes dealer quotations and observable market data inputs to substantiate internal valuation models.  The notional amounts and estimated fair values of oil and gas derivative positions outstanding are presented in the following table:

		June 30, 2015						December 31, 2014
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value			Notional Amount			Estimated Fair Value
		(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		216		$	1,768			312		$	4,629
Derivative liabilities	Barrels		(216	)		(1,426	)		(312	)		(4,271	)
Natural Gas
Derivative assets	MMBTUs		5,525			1,135			2,010			1,495
Derivative liabilities	MMBTUs		(5,525	)		(176	)		(2,010	)		(485	)
Total Fair Value	Included in
Derivative assets	Other assets					2,903						6,124
Derivative liabilities	Other liabilities					(1,602	)					(4,756	)

The following table is a summary of the Company’s recognized income related to the activity, which was included in other noninterest income:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Derivative income	$	37	$	149	$	192	$	298

The Company’s credit exposure on oil and gas swaps and options varies based on the current market prices of oil and natural gas.  Other than credit risk, changes in the fair value of customer positions will be offset by equal and opposite changes in the counterparty positions.  The net positive fair value of the contracts is the profit derived from the activity and is unaffected by market price movements. The Company’s share of total profit is approximately 35%.

Customer credit exposure is managed by strict position limits and is primarily offset by first liens on production while the remainder is offset by cash.  Counterparty credit exposure is managed by selecting highly rated counterparties (rated A- or better by Standard and Poor’s) and monitoring market information.

The following table is a summary of the Company’s net credit exposure relating to oil and gas swaps and options with bank counterparties:

	June 30, 2015		December 31, 2014
	(Dollars inthousands)
Credit exposure	$	1,503	$	4,028

Balance Sheet Offsetting

Derivatives may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements. The Company’s derivative transactions with upstream financial institution counterparties and bank customers are generally executed under International Swaps and Derivative Association (“ISDA”) master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, the Company does not generally offset such financial instruments for financial reporting purposes.

(11) SEGMENT INFORMATION

The Company evaluates its performance with an internal profitability measurement system that measures the profitability of its business units on a pre-tax basis. The four principal business units are metropolitan banks, community banks, other financial services and executive, operations and support. Metropolitan and community banks offer traditional banking products such as commercial and retail lending and a full line of deposit accounts. Metropolitan banks consist of banking locations in the metropolitan Oklahoma City and Tulsa areas.  Community banks consist of banking locations in communities throughout Oklahoma. Other financial services are specialty product business units including guaranteed small business lending, residential mortgage lending, trust services, securities

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brokerage, electronic banking and insurance. The executive, operations and support groups represent executive management, operational support and corporate functions that are not allocated to the other business units.

The results of operations and selected financial information for the four business units are as follows:

	Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support			Eliminations			Consolidated
	(Dollars in thousands)
Three Months Ended June 30, 2015
Net interest income (expense)	$	15,325	$	29,444	$	1,900	$	(454	)	$	—		$	46,215
Noninterest income		3,533		12,990		11,387		21,326			(20,521	)		28,715
Income before taxes		9,800		17,400		6,910		14,604			(20,484	)		28,230
Three Months Ended June 30, 2014
Net interest income (expense)	$	15,372	$	28,955	$	1,568	$	(406	)	$	—		$	45,489
Noninterest income		3,463		12,973		6,329		15,919			(15,073	)		23,611
Income before taxes		7,484		17,692		2,292		7,680			(15,034	)		20,114
Six Months Ended June 30, 2015
Net interest income (expense)	$	30,725	$	58,499	$	3,518	$	(901	)	$	—		$	91,841
Noninterest income		6,990		25,316		20,114		38,618			(37,027	)		54,011
Income before taxes		19,689		33,807		11,917		24,408			(36,926	)		52,895
Six Months Ended June 30, 2014
Net interest income (expense)	$	29,159	$	56,196	$	2,944	$	(781	)	$	—		$	87,518
Noninterest income		6,876		25,239		13,385		31,874			(30,201	)		47,173
Income before taxes		15,274		32,769		5,358		17,359			(30,109	)		40,651
Total Assets:
June 30, 2015	$	2,262,905	$	4,093,820	$	170,089	$	667,250		$	(695,166	)	$	6,498,898
December 31, 2014		2,298,828		4,113,783		145,814		679,194			(662,647	)		6,574,972

The financial information for each business unit is presented on the basis used internally by management to evaluate performance and allocate resources.  The Company utilizes a transfer pricing system to allocate the benefit or cost of funds provided or used by the various business units.  Certain services provided by the support group to other business units, such as item processing, are allocated at rates approximating the cost of providing the services.  Eliminations are adjustments to consolidate the business units and companies. Capital expenditures are generally charged to the business unit using the asset.

(12) SUBSEQUENT EVENT

On July 14, 2015, the Company announced it had entered into an agreement to acquire CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma.  Bank of Commerce has approximately $202 million in total assets, $139 million in loans, $180 million in deposits, and $21 million in equity capital. The transaction is scheduled to be completed during October 2015, and is subject to regulatory approval. The bank will operate under its present name until it is merged into BancFirst, which is expected to be during the fourth quarter of 2015. The acquisition will not have a material effect on the Company’s consolidated financial statements.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis presents factors that the Company believes are relevant to an assessment and understanding of the Company’s consolidated financial position and results of operations. This discussion and analysis should be read in conjunction with the Company’s December 31, 2014 consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 and the Company’s consolidated financial statements and the related Notes included in Item 1.

FORWARD LOOKING STATEMENTS

The Company may make forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 with respect to earnings, credit quality, corporate objectives, interest rates and other financial and business matters.  Forward-looking statements include estimates and give management’s current expectations or forecasts of future events.  The Company cautions readers that these forward-looking statements are subject to numerous assumptions, risks and uncertainties, including economic conditions; the performance of financial markets and interest rates; legislative and regulatory actions and reforms; competition; as well as other factors, all of which change over time. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, income or loss, earnings or loss per share, the payment or nonpayment of dividends, capital structure and other financial items; (ii) statements of plans, objectives and expectations, including those relating to products or services; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as “believes”, “anticipates”, “expects”, “intends”, “targeted”, “continue”, “remain”, “will”, “should”, “may” and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.

Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those in such statements. Factors that could cause actual results to differ from those discussed in the forward-looking statements include, but are not limited to:

· Local, regional, national and international economic conditions and the impact they may have on the Company and its customers and the Company’s assessment of that impact.

· Changes in the mix of loan geographies, sectors and types or the level of non-performing assets and charge-offs.

· Changes in estimates of future reserve requirements based upon the periodic review thereof under relevant regulatory and accounting requirements.

· Inflation, interest rate, crude oil price, securities market and monetary fluctuations.

· The effect of changes in laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) with which the Company must comply.

· Impairment of the Company’s goodwill or other intangible assets.

· Changes in consumer spending, borrowing and savings habits.

· Changes in the financial performance and/or condition of the Company’s borrowers.

· Technological changes.

· Acquisitions and integration of acquired businesses.

· The effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters.

· The Company’s success at managing the risks involved in the foregoing items.

Actual results may differ materially from forward-looking statements.

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SUMMARY

BancFirst Corporation’s net income was $18.6 million, or $1.17 diluted earnings per share, for the second quarter of 2015, compared to net income of $14.7 million, or $0.92 diluted earnings per share, for the second quarter of 2014. Net income was $34.8 million, or $2.20 diluted earnings per share for the six months ended June 30, 2015, compared to $29.3 million, or $1.86 diluted earnings per share, for the six months ended June 30, 2014.  

The Company’s net interest income for the second quarter of 2015 increased to $46.2 million, compared to $45.5 million for the second quarter of 2014, due to higher volume of earning assets. The net interest margin for the quarter was 3.07%, compared to 3.10% a year ago. The Company’s provision for loan losses for the second quarter of 2015 decreased to $1.3 million, compared to $3.1 million a year ago. The higher provision for loan losses in the second quarter of 2014 was due in part to an additional $2 million allowance for a single commercial loan that was adversely graded during the quarter. Net charge-offs for the quarter were only 0.01% of average loans, compared to net recoveries of 0.01% for the second quarter of 2014.  Noninterest income for the quarter totaled $28.7 million, compared to $23.6 million last year. Noninterest income increased due to the Company recording a gain from the sale of an investment by the Company’s wholly-owned subsidiary, Council Oak Partners, LLC, of approximately $5.3 million. Noninterest expense for the quarter totaled $45.4 million, compared to $45.9 million last year. The Company recorded a goodwill impairment loss of approximately $368,000, which is included in noninterest expense for the second quarter of 2015.  The Company’s effective tax rate increased to 34.3% compared to 27.0% for the second quarter of 2014, due primarily to tax credits purchased in 2014 that lowered the effective tax rate.

At June 30, 2015, the Company’s total assets were $6.5 billion, largely unchanged from December 31, 2014. Securities increased $12.5 million to a total of $537.3 million. Loans totaled $3.8 billion, a slight increase from December 31, 2014.  Deposits totaled $5.8 billion, virtually flat from December 31, 2014. The Company’s total stockholders’ equity was $634.2 million, an increase of $24.9 million, or 4.1%, over December 31, 2014.

Asset quality remained strong during the second quarter of 2015. Nonperforming and restructured assets were 0.87% of total assets at June 30, 2015 compared to 0.64% at December 31, 2014. During the second quarter the Company’s nonaccrual loans increased due to the downgrade of a single commercial loan. The allowance to total loans was 1.10%, compared to 1.06% at year-end 2014.

On July 14, 2015 the Company announced it had entered into an agreement to acquire CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma.  Bank of Commerce has approximately $202 million in total assets, $139 million in loans, $180 million in deposits, and $21 million in equity capital. The transaction is scheduled to be completed during October 2015, and is subject to regulatory approval. The bank will operate under its present name until it is merged into BancFirst, which is expected to be during the fourth quarter of 2015. The acquisition will not have a material effect on the Company’s consolidated financial statements.

Oil prices continued to be low during the second quarter of 2015, which had an impact on our loan demand. We expect any continued impact from low oil prices on Oklahoma’s economy will become more apparent in future periods.

FUTURE APPLICATION OF ACCOUNTING STANDARDS

See Note (1) of the Notes to Consolidated Financial Statements for a discussion of recently issued accounting pronouncements.

SEGMENT INFORMATION

See Note (11) of the Notes to Consolidated Financial Statements for disclosures regarding business segments.

27

RESULTS OF OPERATIONS

Selected income statement data and other selected data for the comparable periods were as follows:

BANCFIRST CORPORATION

SELECTED CONSOLIDATED FINANCIAL DATA

(Unaudited)

(Dollars in thousands, except per share data)

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Income Statement Data
Net interest income	$	46,215		$	45,489		$	91,841		$	87,518
Provision for loan losses		1,271			3,129			2,605			4,347
Securities transactions		5,392			85			7,121			535
Total noninterest income		28,715			23,611			54,011			47,173
Salaries and employee benefits		27,886			27,478			55,399			53,416
Total noninterest expense		45,429			45,857			90,352			89,693
Net income		18,553			14,688			34,812			29,345
Per Common Share Data
Net income – basic	$	1.19		$	0.94		$	2.24		$	1.90
Net income – diluted		1.17			0.92			2.20			1.86
Cash dividends		0.34			0.31			0.68			0.62
Performance Data
Return on average assets		1.14	%		0.92	%		1.08	%		0.94	%
Return on average stockholders’ equity		11.79			10.20			11.23			10.35
Cash dividend payout ratio		28.47			32.99			30.32			32.55
Net interest spread		2.93			2.96			2.93			2.90
Net interest margin		3.07			3.10			3.07			3.04
Efficiency ratio		60.63			66.36			61.95			66.59
Net charge-offs to average loans		0.01			(0.01	)		0.02			—

Net Interest Income

For the three months ended June 30, 2015, net interest income, which is the Company’s principal source of operating revenue, increased to $46.2 million compared to $45.5 million for the three months ended June 30, 2014, due to higher volume of earning assets. Net interest margin is the ratio of taxable-equivalent net interest income to average earning assets for the period. The Company’s net interest margin for the quarter was 3.07% compared to 3.10% a year ago. If interest rates and/or loan volume do not increase, management would expect its net interest margin to continue to compress in 2015 as higher yielding loans and securities mature and are replaced at current market rates.

Net interest income for the six months ended June 30, 2015 was $91.8 million compared to $87.5 million for the six months ended June 30, 2014. The net interest margin for the year-to-date increased slightly compared to the same period of the previous year, as shown in the preceding table.  

Provision for Loan Losses

The Company’s provision for loan loss for the second quarter of 2015 decreased to $1.3 million compared to $3.1 million a year ago. The higher provision for loan losses in the second quarter of 2014 was due in part to an additional $2 million allowance for a single commercial loan that was adversely graded during the quarter. The Company establishes an allowance as an estimate of the probable inherent losses in the loan portfolio at the balance sheet date.  Management believes the allowance for loan losses is appropriate based upon management’s best estimate of probable losses that have been incurred within the existing loan portfolio. Should any of the factors considered by management in evaluating the appropriate level of the allowance for loan losses change, the Company’s estimate of probable loan losses could also change, which could affect the amount of future provisions for loan losses. Net loan charge-offs were $207,000 for the second quarter of 2015, compared to net recoveries of $244,000 for the second quarter of 2014. The rate of net charge-offs to average total loans, as presented in the preceding table, continues to be at a very low level.

28

For the six months ended June 30, 2015, the Company’s provision for loan losses was $2.6 million, compared to $4.3 million for the six months ended June 30, 2014. Net loan charge-offs were $873,000, compared to $84,000for the same period of the prior year.

Noninterest Income

Noninterest income totaled $28.7 million for the second quarter of 2015 compared to $23.6 million for the second quarter of 2014.  Noninterest income increased due to the Company recording a gain from the sale of an investment by the Company’s wholly-owned subsidiary Council Oak Partners, LLC, of approximately $5.3 million.  The Company had fees from debit card usage totaling $5.8 million and $5.7 million during the three month periods ended June 30, 2015 and 2014, respectively.

Noninterest income for the six months ended June 30, 2015 totaled $54.0 million compared to $47.2 million for the six months ended June 30, 2014. Noninterest income increased due to the Company recording a gain from the sale of an investment by the Company’s wholly-owned subsidiary Council Oak Partners, LLC, of approximately $5.3 million and a $1.7 million gain on the sale of an investment by Council Oak Investment Corporation, a wholly-owned subsidiary of BancFirst.  Fees from debit card usage totaled $11.3 million and $11.1 million during the six months ended June 30, 2015 and 2014, respectively.

Noninterest Expense

For the three months ended June 30, 2015, noninterest expense totaled $45.4 million, compared to $45.9 million for the three months ended June 30, 2014. The Company recorded an impairment loss of $368,000, which is included in noninterest expense, after adopting a plan in the second quarter of 2015 to close a small branch and leave a full service ATM to serve the community. Noninterest expense for the second quarter of 2014 included acquisition costs for The Bank of Union of $1.6 million partly offset by a gain on sale of other real estate owned property of approximately $500,000.

For the six months ended June 30, 2015, noninterest expense totaled $90.4 million compared to $89.7 million for the six months ended June 30, 2014. The increase in noninterest expense for year-to-date 2015 was mainly due to annual salary increases. Noninterest expense for year-to-date 2014 included acquisition costs of $2.0 million for The Bank of Union, partly offset by a gain on sale of other real estate owned property of approximately $500,000.

Income Taxes

The Company’s effective tax rate on income before taxes increased to 34.3% for the second quarter of 2015, compared to 27.0% for the second quarter of 2014, due primarily to tax credits purchased in 2014 that lowered the effective tax rate.

The Company’s effective tax rate on income before taxes was 34.2% for the first six months of 2015, compared to 27.8% for the first six months of 2014 due primarily to tax credit purchased in 2014 that lowered the effective tax rate and the recognition of state deferred tax benefits in 2014.  

29

FINANCIAL POSITION

BANCFIRST CORPORATION

SELECTED CONSOLIDATED FINANCIAL DATA

(Dollars in thousands, except per share data)

	June 30,			December 31,
	2015			2014
	(unaudited)
Balance Sheet Data
Total assets	$	6,498,898		$	6,574,972
Total loans		3,858,332			3,851,398
Allowance for loan losses		42,621			40,889
Securities		537,319			524,783
Deposits		5,808,221			5,904,704
Stockholders' equity		634,244			609,314
Book value per share		40.76			39.30
Tangible book value per share		37.27			35.71
Average loans to deposits (year-to-date)		65.90	%		63.64	%
Average earning assets to total assets (year-to-date)		93.04			92.71
Average stockholders’ equity to average assets (year-to-date)		9.59			9.19
Asset Quality Ratios
Nonperforming and restructured loans to total loans		1.27	%		0.88	%
Nonperforming and restructured assets to total assets		0.87			0.64
Allowance for loan losses to total loans		1.10			1.06
Allowance for loan losses to nonperforming and restructured loans		86.65			120.05

Cash, Federal Funds Sold and Interest-Bearing Deposits with Banks

The aggregate of cash and due from banks, interest-bearing deposits with banks, and federal funds sold as of June 30, 2015 totaled $1.8 billion, virtually flat from December 31, 2014.  Federal funds sold consist of overnight investments of excess funds with other financial institutions. Due to the Federal Reserve Bank’s intervention into the funds market that has resulted in near zero overnight federal funds rates, the Company has continued to maintain the majority of its excess funds with the Federal Reserve Bank. The Federal Reserve Bank pays interest on these funds based upon the lowest target rate for the maintenance period which continues to be 0.25%.

Securities

At June 30, 2015, total securities increased $12.5 million compared to December 31, 2014. The size of the Company’s securities portfolio is determined by the Company’s liquidity and asset/liability management. The net unrealized gain on securities available for sale, before taxes, was $4.0 million at June 30, 2015, compared to an unrealized gain of $6.8 million at December 31, 2014.  These unrealized gains are included in the Company’s stockholders’ equity as accumulated other comprehensive income, net of income tax, in the amounts of $2.5 million and $4.2 million, respectively. The unrealized gains decreased in 2015 primarily due to the reclassification of an unrealized gain on one investment of $3.3 million from other comprehensive income to realized gain by Council Oak Partners, LLC, a wholly-owned subsidiary of the Company. The realized gain is reported as securities transactions within the noninterest income section of the consolidated statement of comprehensive income.

Loans (Including Acquired Loans)

At June 30, 2015, loans totaled $3.9 billion, with no material change from December 31, 2014. Loan growth during the first half of 2015 slowed in part due to the effect of lower oil prices on the Oklahoma economy.

30

Allowance for Loan Losses/Fair Value Adjustments on Acquired Loans

At June 30, 2015, the allowance for loan losses to total loans represented 1.10% of total loans, compared to 1.06% at December 31, 2014. The increase was mainly due to higher adversely classified loans.

The fair value adjustment on acquired loans consists of an interest rate component to adjust the effective rates on the loans to market rates and a credit component to adjust for estimated credit exposures in the acquired loans. The credit component of the adjustment was $3.5 million at June 30, 2015 and $4.3 million at December 31, 2014 while the acquired loans outstanding were $86.2 million and $101.7 million, respectively. The decrease in the credit component in 2015 was due to loan payoffs and accretion.  

Nonperforming and Restructured Assets

Nonperforming and restructured assets totaled $56.7 million at June 30, 2015, compared to $42.1 million at December 31, 2014. The Company’s level of nonperforming and restructured assets has continued to be relatively low.

Nonaccrual loans totaled $32.2 million at June 30, 2015, compared to $16.4 million at the end of 2014. The Company’s nonaccrual loans are primarily commercial and real estate loans. Nonaccrual loans negatively impact the Company’s net interest margin. A loan is placed on nonaccrual status when, in the opinion of management, the future collectability of interest or principal or both is in serious doubt. Interest income is recognized on certain of these loans on a cash basis if the full collection of the remaining principal balance is reasonably expected. Otherwise, interest income is not recognized until the principal balance is fully collected. Total interest income which was not accrued on nonaccrual loans outstanding, was approximately $922,000 for the six months ended June 30, 2015 and $481,000 for the six months ended June 30, 2014.  Only a small amount of this interest is expected to be ultimately collected. During the second quarter of 2015 the Company’s nonaccrual loans increased due to the downgrade of a single commercial loan.

Other real estate owned and repossessed assets totaled $7.5 million at June 30, 2015, compared to $8.1 million at December 31, 2014. Other real estate owned and repossessed assets decreased due to the sale of two properties during the first quarter of 2015, partially offset by an addition in the second quarter.

Potential problem loans are performing loans to borrowers with a weakened financial condition, or which are experiencing unfavorable trends in their financial condition, which causes management to have concerns as to the ability of such borrowers to comply with the existing repayment terms.  The Company had approximately $7.6 million of these loans at June 30, 2015, compared to $27.5 million at December 31, 2014. Potential problem loans are not included in nonperforming and restructured loans.  In general, these loans are adequately collateralized and have no specific identifiable probable loss.  Loans which are considered to have identifiable probable loss potential are placed on nonaccrual status, are allocated a specific allowance for loss or are directly charged-down, and are reported as nonperforming. Potential problem loans decreased due to the downgrade of a single commercial loan that was moved to nonaccrual during the second quarter.

Liquidity and Funding

Deposits

At June 30, 2015, deposits totaled $5.8 billion, virtually flat compared to December 31, 2014.  The Company’s core deposits provide it with a stable, low-cost funding source. The Company’s core deposits as a percentage of total deposits were 94.2% at June 30, 2015 compared to 94.1% at December 31, 2014.  Noninterest-bearing deposits to total deposits were 40.0% at June 30, 2015, compared to 40.8% at December 31, 2014.

Short-Term Borrowings

Short-term borrowings, consisting primarily of federal funds purchased and repurchase agreements are another source of funds for the Company. The level of these borrowings is determined by various factors, including customer demand and the Company’s ability to earn a favorable spread on the funds obtained. Short-term borrowings were $2.1 million at June 30, 2015, compared to $4.0 million at December 31, 2014.

Long-Term Borrowings

The Company has a line of credit from the Federal Home Loan Bank (“FHLB”) of Topeka, Kansas to use for liquidity or to match-fund certain long-term fixed rate loans. The Company’s assets, including residential first mortgages of $637.6 million, are pledged as collateral for the borrowings under the line of credit. As of June 30, 2015 and December 31, 2014, the Company had no advances outstanding.

31

There have not been any other material changes from the liquidity and funding discussion included in Management’s Discussion and Analysis in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Capital Resources

Stockholders’ equity totaled $634.2 million at June 30, 2015, compared to $609.3 million at December 31, 2014. In addition to net income of $34.8 million, other changes in stockholders’ equity during the six months ended June 30, 2015 included $1.7 million related to stock option exercises and $754,000 related to stock-based compensation that were partially offset by a $1.7 million decrease in other comprehensive income and $10.6 million in dividends. The Company’s leverage ratio and total risk-based capital ratios at June 30, 2015, were well in excess of the regulatory requirements.

See Note (7) of the Notes to Consolidated Financial Statements for a discussion of capital ratio requirements.

CONTRACTUAL OBLIGATIONS

There have not been any material changes in the resources required for scheduled repayments of contractual obligations from the table of Contractual Cash Obligations included in Management’s Discussion and Analysis which was included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. 

32

BANCFIRST CORPORATION

CONSOLIDATED AVERAGE BALANCE SHEETS AND INTEREST MARGIN ANALYSIS

(Unaudited)

Taxable Equivalent Basis (Dollars in thousands)

	Three Months Ended June 30,
	2015								2014
				Interest		Average						Interest		Average
	Average			Income/		Yield/			Average			Income/		Yield/
	Balance			Expense		Rate			Balance			Expense		Rate
ASSETS
Earning assets:
Loans (1)	$	3,853,995		$	46,601		4.85	%	$	3,602,491		$	45,929		5.11	%
Securities – taxable		508,819			1,458		1.15			530,482			1,502		1.14
Securities – tax exempt		37,567			363		3.87			40,870			421		4.13
Interest-bearing deposits w/ banks & FFS		1,678,617			1,066		0.25			1,748,422			1,096		0.25
Total earning assets		6,078,998			49,488		3.27			5,922,265			48,948		3.32
Nonearning assets:
Cash and due from banks		176,745								184,984
Interest receivable and other assets		315,018								323,312
Allowance for loan losses		(41,946	)							(40,567	)
Total nonearning assets		449,817								467,729
Total assets	$	6,528,815							$	6,389,994
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities:
Transaction deposits	$	735,460		$	183		0.10	%	$	810,729		$	208		0.10	%
Savings deposits		2,068,549			1,159		0.22			1,975,496			1,113		0.23
Time deposits		729,834			1,200		0.66			804,779			1,412		0.70
Short-term borrowings		1,964			1		0.14			10,270			5		0.20
Long-term borrowings		—			—		—			1,308			7		2.22
Junior subordinated debentures		26,804			491		7.35			26,804			492		7.37
Total interest-bearing liabilities		3,562,611			3,034		0.34			3,629,386			3,237		0.36
Interest-free funds:
Noninterest-bearing deposits		2,310,375								2,159,268
Interest payable and other liabilities		24,653								23,769
Stockholders’ equity		631,176								577,571
Total interest free funds		2,966,204								2,760,608
Total liabilities and stockholders’ equity	$	6,528,815							$	6,389,994
Net interest income				$	46,454							$	45,711
Net interest spread							2.93	%							2.96	%
Effect of interest free funds							0.14	%							0.14	%
Net interest margin							3.07	%							3.10	%

(1) Nonaccrual loans are included in the average loan balances and any interest on such nonaccrual loans is recognized on a cash basis.

33

	Six Months Ended June 30,
	2015								2014
				Interest		Average						Interest		Average
	Average			Income/		Yield/			Average			Income/		Yield/
	Balance			Expense		Rate			Balance			Expense		Rate
ASSETS
Earning assets:
Loans (1)	$	3,847,450		$	92,652		4.86	%	$	3,542,572		$	88,643		5.05	%
Securities – taxable		497,687			2,857		1.16			507,817			2,807		1.11
Securities – tax exempt		38,282			741		3.90			41,037			851		4.18
Interest-bearing deposits w/ banks & FFS		1,682,494			2,128		0.26			1,744,071			2,191		0.25
Total earning assets		6,065,913			98,378		3.27			5,835,497			94,492		3.27
Nonearning assets:
Cash and due from banks		179,326								192,538
Interest receivable and other assets		315,780								315,690
Allowance for loan losses		(41,415	)							(39,916	)
Total nonearning assets		453,691								468,312
Total assets	$	6,519,604							$	6,303,809
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities:
Transaction deposits	$	729,716		$	351		0.10	%	$	785,675		$	406		0.10	%
Savings deposits		2,060,781			2,308		0.23			1,966,302			2,216		0.23
Time deposits		736,691			2,421		0.66			802,927			2,900		0.73
Short-term borrowings		2,496			2		0.14			7,892			7		0.18
Long-term borrowings		—			—		—			3,297			25		1.53
Junior subordinated debentures		26,804			982		7.38			26,804			983		7.39
Total interest-bearing liabilities		3,556,488			6,064		0.34			3,592,897			6,537		0.37
Interest-free funds:
Noninterest-bearing deposits		2,311,291								2,123,644
Interest payable and other liabilities		26,633								15,635
Stockholders’ equity		625,192								571,633
Total interest free funds		2,963,116								2,710,912
Total liabilities and stockholders’ equity	$	6,519,604							$	6,303,809
Net interest income				$	92,314							$	87,955
Net interest spread							2.93	%							2.90	%
Effect of interest free funds							0.14	%							0.14	%
Net interest margin							3.07	%							3.04	%

(1) Nonaccrual loans are included in the average loan balances and any interest on such nonaccrual loans is recognized on a cash basis.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

There have been no significant changes in the Registrant’s disclosures regarding market risk since December 31, 2014, the date of its most recent annual report to stockholders.

Item 4. Controls and Procedures.

The Company’s Chief Executive Officer, Chief Financial Officer and its Disclosure Committee, which includes the Company’s Chief Risk Officer, Chief Asset Quality Officer, Chief Internal Auditor, Controller, and General Counsel, have evaluated, as of the last day of the period covered by this report, the Company’s disclosure controls and procedures.  Based on their evaluation they concluded that the disclosure controls and procedures of the Company are effective to ensure that information required to be disclosed by the Company in the reports filed or submitted by it under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported, within the time periods specified in the applicable rules and forms.

No changes were made to the Company’s internal control over financial reporting during the period covered by this report that materially affected, or are likely to materially affect, the Company’s internal control over financial reporting.

34

PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

The Company has been named as a defendant in various legal actions arising from the conduct of its normal business activities. Although the amount of any liability that could arise with respect to these actions cannot be accurately predicted, in the opinion of the Company, any such liability will not have a material adverse effect on the consolidated financial statements of the Company.

Item 1A. Risk Factors.

As of June 30, 2015, there have been no material changes from the risk factors previously disclosed in Part I, Item 1A, of the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

None.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

None.

Item 5. Other Information.

None.

35

Item 6. Exhibits.

Exhibit Number	Exhibit
3.1	Second Amended and Restated Certificate of Incorporation of BancFirst Corporation (filed as Exhibit 1 to the Company’s 8-A/A filed July 23, 1998 and incorporated herein by reference).
3.2	Certificate of Amendment of the Second Amended and Restated Certificate of Incorporation of BancFirst Corporation dated June 15, 2004 (filed as Exhibit 3.5 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2004 and incorporated herein by reference).
3.3	Amended and Restated By-Laws of BancFirst Corporation (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K dated March 30, 2015 and incorporated herein by reference).
3.4	Certificate of Amendment of the Second Amended and Restated Certificate of Incorporation of BancFirst Corporation dated May 23, 2013 (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K dated May 29, 2013 and incorporated herein by reference).
4.1	Instruments defining the rights of securities holders (see Exhibits 3.1, 3.2, 3.3 and 3.4 above).
4.2	Form of Amended and Restated Trust Agreement relating to the 7.20% Cumulative Trust Preferred Securities of BFC Capital Trust II (filed as Exhibit 4.5 to the Company’s registration statement on Form S-3/A, File No. 333-112488 dated February 23, 2004, and incorporated herein by reference).
4.3	Form of 7.20% Cumulative Trust Preferred Security Certificate for BFC Capital Trust II (filed as Exhibit D to Exhibit 4.5 to the Company’s registration statement on Form S-3/A, File No. 333-112488 dated February 23, 2004, and incorporated herein by reference).
4.4	Form of Indenture relating to the 7.20% Junior Subordinated Deferrable Interest Debentures of BancFirst Corporation issued to BFC Capital Trust II (filed as Exhibit 4.1 to the Company’s registration statement on Form S-3, File No. 333-112488 dated February 4, 2004, and incorporated herein by reference).
4.5	Form of Certificate of 7.20% Junior Subordinated Deferrable Interest Debenture of BancFirst Corporation (filed as Exhibit 4.2 to the Company’s registration statement on Form S-3, File No. 333-112488 dated February 4, 2004, and incorporated herein by reference).
4.6	Form of Guarantee of BancFirst Corporation relating to the 7.20% Cumulative Trust Preferred Securities of BFC Capital Trust II (filed as Exhibit 4.7 to the Company’s registration statement on Form S-3/A, File No. 333-112488 dated February 23, 2004, and incorporated herein by reference).
10.1	BancFirst Corporation Employee Stock Ownership and Trust Agreement adopted effective January 1, 2015 (filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended March 31, 2015 and incorporated herein by reference).
10.2	Fourth Amended and Restated BancFirst Corporation Directors’ Stock Option Plan (filed as Exhibit 10.1 to the Company’s Form 8-K dated October 28, 2014 and incorporated herein by reference).
10.3	Fourth Amended and Restated BancFirst Corporation Directors’ Deferred Stock Compensation Plan (filed as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2014 and incorporated herein by reference).
10.4	Amended and Restated BancFirst Corporation Thrift Plan adopted March 25, 2010 effective January 1, 2010 (filed as Exhibit 10.6 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2010 and incorporated herein by reference).
10.5	Amendment to the Amended and Restated BancFirst Corporation Thrift Plan adopted December 16, 2010 effective January 1, 2011 (filed as Exhibit 10.9 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2010 and incorporated herein by reference).
10.6	Amendment to the Amended and Restated BancFirst Corporation Thrift Plan adopted October 27, 2011 effective October 1, 2011 (filed as Exhibit 10.9 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2011 and incorporated herein by reference).
10.7	Thirteenth Amended and Restated BancFirst Corporation Stock Option Plan (filed as Exhibit 10.1 to the Company’s Form 8-K dated October 28, 2014 and incorporated herein by reference).
31.1*	Chief Executive Officer’s Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a).

36

Exhibit Number	Exhibit
31.2*	Chief Financial Officer’s Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a).
32.1*	CEO’s Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	CFO’s Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase
101.DEF*	XBRL Taxonomy Extension Definition Linkbase
101.LAB*	XBRL Taxonomy Extension Label Linkbase
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase

* Filed herewith.

37

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	BANCFIRST CORPORATION
	(Registrant)
Date:  August 7, 2015	/s/ David E. Rainbolt
	David E. Rainbolt
	President
	Chief Executive Officer
	(Principal Executive Officer)
Date:  August 7, 2015	/s/ Kevin Lawrence
	Kevin Lawrence
	Executive Vice President
	Chief Financial Officer
	(Principal Financial Officer)

38

EX-31.1

Exhibit 31.1

CEO’S CERTIFICATION PURSUANT TO RULE 13a-14(a) OR RULE 15d-14(a)

I, David E. Rainbolt, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarterly period ended June 30, 2015 of BancFirst Corporation;

2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a – 15 (e) and 15d – 15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a – 15(f) and 15d – 15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and

d) Disclosed in this quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.

Date:  August 7, 2015	/s/ David E. Rainbolt
	David E. Rainbolt
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CFO’S CERTIFICATION PURSUANT TO RULE 13a-14(a) OR RULE 15d-14(a)

I, Kevin Lawrence, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarterly period ended June 30, 2015 of BancFirst Corporation;

2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a – 15 (e) and 15d – 15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a – 15(f) and 15d – 15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and

d) Disclosed in this quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.

Date:  August 7, 2015	/s/ Kevin Lawrence
	Kevin Lawrence
	Executive Vice President
	Chief Financial Officer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CEO’s Certification Pursuant to

18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of BancFirst Corporation (the “Company”) for the period ended June 30, 2015 as filed with the Securities and Exchange Commission (the “Report”), I, David E. Rainbolt, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ David E. Rainbolt

David E. Rainbolt

President and Chief Executive Officer

(Principal Executive Officer)

August 7, 2015

EX-32.2

Exhibit 32.2

CFO’s Certification Pursuant to

18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of BancFirst Corporation (the “Company”) for the period ended June 30, 2015 as filed with the Securities and Exchange Commission (the “Report”), I, Kevin Lawrence, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Kevin Lawrence

Kevin Lawrence

Executive Vice President

Chief Financial Officer

(Principal Financial Officer)

August 7, 2015

XML

Loans and Allowance for Loan Losses - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2015 USD ($) SecurityLoan	Jun. 30, 2014 USD ($)
Receivables [Abstract]
Percentage of loans secured by real estate	65.00%
Interest income recognized	$ 922,000	$ 481,000
Troubled debt restructuring principal deferral | SecurityLoan	1

XML

Stock-Based Compensation - Options Granted and Options Exercised Under Stock Option Plan (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures [Abstract]
Weighted average grant-date fair value per share of options granted	$ 12.07	$ 12.33	$ 11.51	$ 12.33
Total intrinsic value of options exercised	$ 1,892	$ 1,301	$ 2,129	$ 2,046
Cash received from options exercised	1,109	776	1,353	1,642
Tax benefit realized from options exercised	$ 731	$ 503	$ 823	$ 791

XML

Loans and Allowance for Loan Losses - Transfers from Loans to Other Real Estate Owned and Repossessed Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable Allowance For Credit Loss Additional Information Transfer From Loans To Other Real Estate Owned And Repossessed Assets [Abstract]
Other real estate owned	$ 2,522	$ 525
Repossessed assets	424	722
Total	$ 2,946	$ 1,247

XML

Stock-Based Compensation - Stock-Based Employee Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Labor And Related Expense [Abstract]
Stock-based compensation expense	$ 290	$ 429	$ 754	$ 776
Tax benefit	112	166	292	300
Stock-based compensation expense, net of tax	$ 178	$ 263	$ 462	$ 476

XML

Loans and Allowance for Loan Losses - Allowance for Loan Losses Outstanding by Impairment Methodology (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	$ 9,704	$ 8,127
Collectively evaluated for impairment	32,917	32,762
Non-residential Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	214	202
Collectively evaluated for impairment	4,289	4,204
Non-residential Real Estate Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	1,851	1,518
Collectively evaluated for impairment	8,029	8,098
Residential Real Estate Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	448	407
Collectively evaluated for impairment	2,662	2,541
Residential Real Estate All Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	935	743
Collectively evaluated for impairment	5,550	5,526
Non-consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	5,779	4,671
Collectively evaluated for impairment	7,934	8,100
Consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	421	372
Collectively evaluated for impairment	2,078	2,032
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	56	214
Collectively evaluated for impairment	$ 2,375	2,145
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment		$ 116

XML

Securities - Summary of Amortized Cost and Estimated Fair Values of Securities Held for Investment (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 7,923	$ 8,593
Gross Unrealized Gains	68	78
Estimated Fair Value	7,991	8,671
Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	406	471
Gross Unrealized Gains	26	34
Estimated Fair Value	432	505
States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	7,517	8,122
Gross Unrealized Gains	42	44
Estimated Fair Value	$ 7,559	$ 8,166

XML

Segment Information - Results of Operations and Selected Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net interest income (expense)	$ 46,215	$ 45,489	$ 91,841	$ 87,518
Noninterest income	28,715	23,611	54,011	47,173
Income before taxes	28,230	20,114	52,895	40,651
Total Assets	6,498,898		6,498,898		$ 6,574,972
Operating Segments [Member] | Metropolitan Banks [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	15,325	15,372	30,725	29,159
Noninterest income	3,533	3,463	6,990	6,876
Income before taxes	9,800	7,484	19,689	15,274
Total Assets	2,262,905		2,262,905		2,298,828
Operating Segments [Member] | Community Banks [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	29,444	28,955	58,499	56,196
Noninterest income	12,990	12,973	25,316	25,239
Income before taxes	17,400	17,692	33,807	32,769
Total Assets	4,093,820		4,093,820		4,113,783
Operating Segments [Member] | Other Financial Services [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	1,900	1,568	3,518	2,944
Noninterest income	11,387	6,329	20,114	13,385
Income before taxes	6,910	2,292	11,917	5,358
Total Assets	170,089		170,089		145,814
Operating Segments [Member] | Executive, Operations & Support [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	(454)	(406)	(901)	(781)
Noninterest income	21,326	15,919	38,618	31,874
Income before taxes	14,604	7,680	24,408	17,359
Total Assets	667,250		667,250		679,194
Eliminations [Member]
Segment Reporting Information [Line Items]
Noninterest income	(20,521)	(15,073)	(37,027)	(30,201)
Income before taxes	(20,484)	$ (15,034)	(36,926)	$ (30,109)
Total Assets	$ (695,166)		$ (695,166)		$ (662,647)

XML

Stock-Based Compensation - Assumptions Used for Computing Stock-Based Compensation Expense (Detail)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate		2.54%
Dividend yield	2.00%	2.00%
Stock price volatility		18.98%
Expected term	10 years	10 years
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate	1.83%
Stock price volatility	18.23%
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate	2.26%
Stock price volatility	19.22%

XML

Derivative Financial Instruments - Summary of Company's Net Credit Exposure Relating to Oil and Gas Swaps and Options with Bank Counterparties (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Credit Risk Derivatives At Fair Value Net [Abstract]
Credit exposure	$ 1,503	$ 4,028

XML

Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Summary of Shares Repurchased Under Stock Purchase Program

The following table is a summary of the shares under the program:

	Six Months Ended June 30,
	2015		2014
Number of shares repurchased		—		—
Average price of shares repurchased		—		—
Shares remaining to be repurchased		194,723		194,723

Required Capital Amounts and Company's Respective Ratios

The actual and required capital amounts and ratios are shown in the following table:

						Required					To Be Well
						For Capital					Capitalized Under
						Adequacy					Prompt Corrective
	Actual					Purposes					Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of June 30, 2015:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	652,100		15.61	%	$	334,229		8.00	%	N/A		N/A
BancFirst		598,091		14.40	%		332,259		8.00	%	$	415,324		10.00	%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	583,479		13.97	%	$	188,004		4.50	%	N/A		N/A
BancFirst		535,470		12.89	%		186,896		4.50	%	$	269,960		6.50	%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	609,479		14.59	%	$	250,672		6.00	%	N/A		N/A
BancFirst		555,470		13.37	%		249,194		6.00	%	$	332,259		8.00	%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	609,479		9.45	%	$	259,959		4.00	%	N/A		N/A
BancFirst		555,470		8.62	%		259,366		4.00	%	$	324,207		5.00	%

XML

Intangible Assets - Summary of Goodwill by Business Segment (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Line Items]
Balance at December 31, 2014	$ 44,962
Impairment	(368)
Balance at June 30, 2015	44,594
Metropolitan Banks [Member]
Goodwill [Line Items]
Balance at December 31, 2014	8,078
Balance at June 30, 2015	8,078
Community Banks [Member]
Goodwill [Line Items]
Balance at December 31, 2014	30,970
Impairment	(368)
Balance at June 30, 2015	30,602
Other Financial Services [Member]
Goodwill [Line Items]
Balance at December 31, 2014	5,464
Balance at June 30, 2015	5,464
Executive, Operations & Support [Member]
Goodwill [Line Items]
Balance at December 31, 2014	450
Balance at June 30, 2015	$ 450

XML

Loans and Allowance for Loan Losses - Age Analysis of Past Due Loans Segregated by Class of Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 34,645	$ 21,528
Current Loans	3,823,687	3,829,870
Total Loans	3,858,332	3,851,398
Accruing Loans 90 Days or More Past Due	1,311	1,135
30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	23,979	11,270
60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	4,499	3,964
90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	6,167	6,294
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	394	904
Current Loans	492,117	482,731
Total Loans	492,511	483,635
Accruing Loans 90 Days or More Past Due	159	70
Non-residential Real Estate Owner Occupied [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	235	635
Non-residential Real Estate Owner Occupied [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	159	269
Non-residential Real Estate Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,739	1,519
Current Loans	961,559	952,484
Total Loans	963,298	954,003
Non-residential Real Estate Other [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	914	377
Non-residential Real Estate Other [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans		317
Non-residential Real Estate Other [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	825	825
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	2,011	3,312
Current Loans	320,538	304,267
Total Loans	322,549	307,579
Accruing Loans 90 Days or More Past Due	219	172
Residential Real Estate Permanent Mortgage [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	865	2,010
Residential Real Estate Permanent Mortgage [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	659	758
Residential Real Estate Permanent Mortgage [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	487	544
Residential Real Estate All Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	4,309	3,502
Current Loans	638,649	633,586
Total Loans	642,958	637,088
Accruing Loans 90 Days or More Past Due	326	387
Residential Real Estate All Other [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	2,954	1,820
Residential Real Estate All Other [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	233	194
Residential Real Estate All Other [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,122	1,488
Non-consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	19,163	1,705
Current Loans	919,622	965,002
Total Loans	938,785	966,707
Accruing Loans 90 Days or More Past Due	357	24
Non-consumer Non-real Estate [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	16,192	841
Non-consumer Non-real Estate [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,671	71
Non-consumer Non-real Estate [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,300	793
Consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	2,413	2,955
Current Loans	252,336	244,810
Total Loans	254,749	247,765
Accruing Loans 90 Days or More Past Due	213	215
Consumer Non-real Estate [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,403	1,914
Consumer Non-real Estate [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	693	711
Consumer Non-real Estate [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	317	330
Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,943	3,515
Current Loans	155,372	149,469
Total Loans	157,315	152,984
Other Loans [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	891	1,858
Other Loans [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	567	916
Other Loans [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	485	741
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	2,673	4,116
Current Loans	83,494	97,521
Total Loans	86,167	101,637
Accruing Loans 90 Days or More Past Due	37	267
Acquired Loans [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	525	1,815
Acquired Loans [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	676	997
Acquired Loans [Member] | 90 Days and Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 1,472	$ 1,304

XML

Securities - Company's Book Value of Pledged Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Pledged Financial Instruments Not Separately Reported Securities Pledged By Type Of Security [Abstract]
Book value of pledged securities	$ 463,877	$ 522,190

XML

Stock-Based Compensation - Additional Information (Detail) - shares	6 Months Ended
	Jun. 30, 2015	May. 31, 2014	May. 31, 2013
Non-Employee [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options granted for non-employee director	10,000
Nonqualified Incentive Stock Option Plan [Member] | Stock Option [ Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares to be issued under incentive stock option plan			3,000,000
Shares for future grants	39,485
Stock option plan termination date	Dec. 31, 2019
Option exercisable rate	25.00%
Option exercisable period	4 years
Options expire period	15 years
Vesting period in years, start	4 years
Share based compensation options exercisable period	2022
Options vest and exercisable Description	The options are exercisable beginning four years from the date of grant at the rate of 25% per year for four years. Options expire at the end of fifteen years from the date of grant
Vesting period in years	7 years
Nonqualified Incentive Stock Option Plan [Member] | Stock Option [ Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock price percentage to fair value at grant date	100.00%
Non-Employee Directors Stock Option Plan [ Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares to be issued under incentive stock option plan		230,000
Shares for future grants	20,000
Option exercisable rate	25.00%
Option exercisable period	1 year
Options expire period	15 years
Share based compensation options exercisable period	2018
Options vest and exercisable Description	The options are exercisable beginning one year from the date of grant at the rate of 25% per year for four years
Vesting period in years	4 years
Non-Employee Directors Stock Option Plan [ Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock price percentage to fair value at grant date	100.00%

XML

Fair Value Measurements - Estimated Fair Values of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
FINANCIAL ASSETS
Securities held for investment	$ 7,923	$ 8,593
Loans, net of allowance for loan losses	3,815,711	3,810,509
FINANCIAL LIABILITIES
Deposits	5,808,221	5,904,704
Short-term borrowings	2,075	3,982
Junior subordinated debentures	26,804	26,804
Carrying Amount [Member] | Level 2 Inputs [Member]
FINANCIAL ASSETS
Cash and cash equivalents	1,817,228	1,913,895
Securities held for investment	7,923	8,593
FINANCIAL LIABILITIES
Deposits	5,808,221	5,904,704
Short-term borrowings	2,075	3,982
Junior subordinated debentures	26,804	26,804
Carrying Amount [Member] | Level 3 Inputs [Member]
FINANCIAL ASSETS
Loans, net of allowance for loan losses	3,815,711	3,810,509
Fair Value [Member]
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments	1,666	1,640
Letters of credit	485	478
Fair Value [Member] | Level 2 Inputs [Member]
FINANCIAL ASSETS
Cash and cash equivalents	1,817,228	1,913,895
Securities held for investment	7,991	8,671
FINANCIAL LIABILITIES
Deposits	5,131,120	5,945,502
Short-term borrowings	2,075	3,982
Junior subordinated debentures	29,806	31,200
Fair Value [Member] | Level 3 Inputs [Member]
FINANCIAL ASSETS
Loans, net of allowance for loan losses	$ 3,853,964	$ 3,847,791

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Net Income Per Common Share - Basic and Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share Reconciliation [Abstract]
Income available to common stockholders	$ 18,553	$ 14,688	$ 34,812	$ 29,345
Income available to common stockholders plus assumed exercises of stock options	$ 18,553	$ 14,688	$ 34,812	$ 29,345
Income available to common stockholders - Shares	15,536,325	15,468,511	15,521,916	15,405,847
Effect of stock options - Shares	328,599	363,669	330,616	353,942
Income available to common stockholders plus assumed exercises of stock options - Shares	15,864,924	15,832,180	15,852,532	15,759,789
Income available to common stockholders - Per Share Amount	$ 1.19	$ 0.94	$ 2.24	$ 1.90
Income available to common stockholders plus assumed exercises of stock options - Per Share Amount	$ 1.17	$ 0.92	$ 2.20	$ 1.86

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Loans and Allowance for Loan Losses - Loans Outstanding by Impairment Methodology (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	$ 95,726	$ 76,758
Collectively evaluated for impairment	3,748,563	3,756,419
Receivables Acquired with Deteriorated Credit Quality [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired with deteriorated credit quality	14,043	18,221
Non-residential Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	5,706	5,374
Collectively evaluated for impairment	486,805	478,261
Non-residential Real Estate Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	34,454	25,251
Collectively evaluated for impairment	928,844	928,752
Residential Real Estate Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	8,344	7,313
Collectively evaluated for impairment	314,205	300,266
Residential Real Estate All Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	12,580	8,319
Collectively evaluated for impairment	630,378	628,769
Non-consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	31,731	28,156
Collectively evaluated for impairment	907,054	938,551
Consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	2,682	2,112
Collectively evaluated for impairment	252,067	245,653
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	229	233
Collectively evaluated for impairment	157,086	152,751
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment	72,124	83,416
Acquired Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans acquired with deteriorated credit quality	$ 14,043	$ 18,221

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Recent Developments, Including Mergers and Acquisitions

6 Months Ended

Jun. 30, 2015

Recent Developments Including Mergers And Acquisitions [Abstract]

Recent Developments, Including Mergers and Acquisitions

(2) RECENT DEVELOPMENTS, INCLUDING MERGERS AND ACQUISITIONS

In January 2015, Council Oak Investment Corporation, a wholly-owned subsidiary of BancFirst, recognized a pretax gain of approximately $1.7 million on one of its investments.

In June 2015, Council Oak Partners, LLC, a wholly-owned subsidiary of the Company, recognized a pretax gain of approximately $5.3 million on one of its investments.

On July 14, 2015, the Company announced it had entered into an agreement to acquire CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma. See Note (12) Subsequent Event.  

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Net Income Per Common Share - Average Exercise Prices of Options Excluded from Computation of Diluted Net Income Per Common Share (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Abstract]
Shares	168,065	59,286	148,475	67,155
Average Exercise Price	$ 58.14	$ 54.89	$ 57.94	$ 54.15

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Loans and Allowance for Loan Losses - Impaired Loans Segregated by Class of Loans (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	$ 56,446	$ 42,843
Recorded Investment with Allowance	49,823	36,357
Related Allowance	6,319	2,560
Average Recorded Investment	40,040	37,132
Non-residential Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	467	521
Recorded Investment with Allowance	386	448
Related Allowance	14	15
Average Recorded Investment	393	453
Non-residential Real Estate Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	22,354	23,154
Recorded Investment with Allowance	20,184	21,164
Related Allowance	1,316	1,364
Average Recorded Investment	20,553	21,522
Residential Real Estate Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	1,324	1,095
Recorded Investment with Allowance	1,107	880
Related Allowance	85	85
Average Recorded Investment	941	1,042
Residential Real Estate All Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	2,122	2,480
Recorded Investment with Allowance	1,889	2,270
Related Allowance	202	299
Average Recorded Investment	2,058	2,273
Non-consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	19,328	1,895
Recorded Investment with Allowance	18,879	1,580
Related Allowance	4,503	431
Average Recorded Investment	6,740	1,646
Consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	612	664
Recorded Investment with Allowance	597	648
Related Allowance	119	138
Average Recorded Investment	536	602
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	2,056	2,101
Recorded Investment with Allowance	1,628	1,659
Related Allowance	80	228
Average Recorded Investment	1,699	1,512
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	8,183	10,933
Recorded Investment with Allowance	5,153	7,708
Average Recorded Investment	$ 7,120	$ 8,082

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Results of Operations and Selected Financial Information

The results of operations and selected financial information for the four business units are as follows:

	Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support			Eliminations			Consolidated
	(Dollars in thousands)
Three Months Ended June 30, 2015
Net interest income (expense)	$	15,325	$	29,444	$	1,900	$	(454	)	$	—		$	46,215
Noninterest income		3,533		12,990		11,387		21,326			(20,521	)		28,715
Income before taxes		9,800		17,400		6,910		14,604			(20,484	)		28,230
Three Months Ended June 30, 2014
Net interest income (expense)	$	15,372	$	28,955	$	1,568	$	(406	)	$	—		$	45,489
Noninterest income		3,463		12,973		6,329		15,919			(15,073	)		23,611
Income before taxes		7,484		17,692		2,292		7,680			(15,034	)		20,114
Six Months Ended June 30, 2015
Net interest income (expense)	$	30,725	$	58,499	$	3,518	$	(901	)	$	—		$	91,841
Noninterest income		6,990		25,316		20,114		38,618			(37,027	)		54,011
Income before taxes		19,689		33,807		11,917		24,408			(36,926	)		52,895
Six Months Ended June 30, 2014
Net interest income (expense)	$	29,159	$	56,196	$	2,944	$	(781	)	$	—		$	87,518
Noninterest income		6,876		25,239		13,385		31,874			(30,201	)		47,173
Income before taxes		15,274		32,769		5,358		17,359			(30,109	)		40,651
Total Assets:
June 30, 2015	$	2,262,905	$	4,093,820	$	170,089	$	667,250		$	(695,166	)	$	6,498,898
December 31, 2014		2,298,828		4,113,783		145,814		679,194			(662,647	)		6,574,972

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Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2015

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Notional Amounts and Estimated Fair Values of Outstanding Derivative Positions

The Company utilizes dealer quotations and observable market data inputs to substantiate internal valuation models.  The notional amounts and estimated fair values of oil and gas derivative positions outstanding are presented in the following table:

		June 30, 2015						December 31, 2014
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value			Notional Amount			Estimated Fair Value
		(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		216		$	1,768			312		$	4,629
Derivative liabilities	Barrels		(216	)		(1,426	)		(312	)		(4,271	)
Natural Gas
Derivative assets	MMBTUs		5,525			1,135			2,010			1,495
Derivative liabilities	MMBTUs		(5,525	)		(176	)		(2,010	)		(485	)
Total Fair Value	Included in
Derivative assets	Other assets					2,903						6,124
Derivative liabilities	Other liabilities					(1,602	)					(4,756	)

Recognized Derivative Income Included in Other Noninterest Income

The following table is a summary of the Company’s recognized income related to the activity, which was included in other noninterest income:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Derivative income	$	37	$	149	$	192	$	298

Summary of Company's Net Credit Exposure Relating to Oil and Gas Swaps and Options with Bank Counterparties

The following table is a summary of the Company’s net credit exposure relating to oil and gas swaps and options with bank counterparties:

	June 30, 2015		December 31, 2014
	(Dollars inthousands)
Credit exposure	$	1,503	$	4,028

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Stock-Based Compensation - Remaining Fair Value of Stock Options (Detail) $ in Thousands	Jun. 30, 2015 USD ($)
Remaining Fair Value Of Stock Options [Abstract]
Fair value of stock options	$ 4,459

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Loans and Allowance for Loan Losses - Internal Loan Grading by Class of Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 3,858,332	$ 3,851,398
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	492,511	483,635
Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	963,298	954,003
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	322,549	307,579
Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	642,958	637,088
Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	938,785	966,707
Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	254,749	247,765
Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	157,315	152,984
Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	86,167	101,637
Grade 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	3,236,096	3,248,622
Grade 1 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	407,818	402,706
Grade 1 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	809,293	795,209
Grade 1 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	283,951	272,411
Grade 1 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	529,071	529,555
Grade 1 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	773,811	821,094
Grade 1 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	239,719	233,424
Grade 1 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	150,841	147,758
Grade 1 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	41,592	46,465
Grade 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	509,734	507,064
Grade 2 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	78,987	75,555
Grade 2 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	119,551	133,542
Grade 2 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	30,254	27,855
Grade 2 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	101,307	99,214
Grade 2 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	133,243	117,457
Grade 2 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	12,349	12,229
Grade 2 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	3,511	4,261
Grade 2 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	30,532	36,951
Grade 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	80,063	78,999
Grade 3 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	5,455	5,008
Grade 3 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	29,517	20,126
Grade 3 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	7,295	6,369
Grade 3 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	10,608	6,146
Grade 3 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	13,080	26,550
Grade 3 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	2,154	1,548
Grade 3 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	2,677	601
Grade 3 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	9,277	12,651
Grade 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	32,146	16,158
Grade 4 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	251	366
Grade 4 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	4,937	5,126
Grade 4 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,049	944
Grade 4 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,972	2,173
Grade 4 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	18,651	1,606
Grade 4 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	524	564
Grade 4 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	286	173
Grade 4 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	4,476	5,206
Grade 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	293	555
Grade 5 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	3
Grade 5 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		191
Grade 5 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 290	$ 364

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Recent Developments Including Mergers and Acquisitions - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2015	Jan. 31, 2015
Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract]
Pretax gain on sale of investments	$ 5.3	$ 1.7

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Securities - Summary of Securities Held for Investment and Securities Available for Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Marketable Securities [Abstract]
Held for investment, at cost (fair value: $7,991 and $8,671, respectively)	$ 7,923	$ 8,593
Available for sale, at fair value	529,396	516,190
Total	$ 537,319	$ 524,783

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Description of Business and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

Description of Business and Summary of Significant Accounting Policies

(1) DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accounting and reporting policies of BancFirst Corporation and its subsidiaries (the “Company”) conform to accounting principles generally accepted in the United State of America (U.S. GAAP) and general practice within the banking industry. A summary of significant accounting policies can be found in Note (1) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Basis of Presentation

The accompanying unaudited interim consolidated financial statements include the accounts of BancFirst Corporation, Council Oak Partners, LLC, BancFirst Insurance Services, Inc. and BancFirst and its subsidiaries. The principal operating subsidiaries of BancFirst are Council Oak Investment Corporation, Council Oak Real Estate, Inc. and BancFirst Agency, Inc.  All significant intercompany accounts and transactions have been eliminated. Assets held in a fiduciary or agency capacity are not assets of the Company and, accordingly, are not included in the unaudited interim consolidated financial statements.

The accompanying unaudited interim consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q. The information contained in the financial statements and footnotes included in BancFirst Corporation’s Annual Report on Form 10-K for the year ended December 31, 2014, should be referred to in connection with these unaudited interim consolidated financial statements. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

The unaudited interim consolidated financial statements contained herein reflect all adjustments which are, in the opinion of management, necessary to provide a fair statement of the financial position and results of operations of the Company for the interim periods presented. All such adjustments are of a normal and recurring nature. There have been no significant changes in the accounting policies of the Company since December 31, 2014, the date of the most recent annual report.

Reclassifications

Certain items in prior financial statements have been reclassified to conform to the current presentation. Such reclassifications had no effect on previously reported cash flows, stockholders’ equity or comprehensive income.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States inherently involves the use of estimates and assumptions that affect the amounts reported in the financial statements and the related disclosures. These estimates relate principally to the determination of the allowance for loan losses, income taxes, the fair value of financial instruments and the valuation of intangibles. Such estimates and assumptions may change over time and actual amounts realized may differ from those reported.

Recent Accounting Pronouncements

In February 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-02, “Consolidation (Topic 810) – Amendments to the Consolidation Analysis.” ASU 2015-02 implements changes to both the variable interest consolidation model and the voting interest consolidation model. ASU 2015-02 (i) eliminates certain criteria that must be met when determining when fees paid to a decision maker or service provider do not represent a variable interest, (ii) amends the criteria for determining whether a limited partnership is a variable interest entity and (iii)  eliminates the presumption that a general partner controls a limited partnership in the voting model. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2015. Adoption of ASU 2015-02 is not expected to have a significant effect on the Company’s financial statements.

In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Topic 205-40).”  ASU 2014-15 provides guidance on management’s responsibility in evaluating whether there is substantial doubt about the Company’s ability to continue as a going concern and related footnote disclosures. For each reporting period, management will be required to evaluate whether there are conditions or events that raise substantial doubt about the Company’s ability to continue as a going concern within one year from the date the financial statements are issued.  The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2016. Early adoption is permitted. Adoption of ASU 2014-15 is not expected to have a significant effect on the Company’s financial statements.

In January 2014, the FASB issued Accounting Standards Update ASU No. 2014-04, “Receivables: Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (Topic 310-40).”  ASU 2014-04 clarifies that an in-substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments were effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. Adoption of ASU 2014-04 did not have a significant effect on the Company’s financial statements.

In January 2014, the FASB issued ASU No. 2014-01, “Accounting for Investments in Affordable Housing Projects (Topic 323).”  ASU 2014-01 revises the necessary criteria that need to be met in order for an entity to account for investments in affordable housing projects net of the provision for income taxes. It also changes the method of recognition from an effective amortization approach to a proportional amortization approach. Additional disclosures were also set forth in this update. The amendments were effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments were required to be applied retrospectively to all periods presented. Early adoption was permitted and adoption of the standard was optional. Adoption of ASU 2014-01 did not have a material impact on the Company's financial statements.

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Securities - Summary of Securities Held for Investment and Securities Available for Sale (Parenthetical) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Marketable Securities [Abstract]
Held for investment at fair value	$ 7,991	$ 8,671

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Loans and Allowance for Loan Losses - Summary of Nonperforming and Restructured Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Summary Of Nonperforming And Restructured Assets [Abstract]
Past due 90 days or more and still accruing	$ 1,311	$ 1,135
Nonaccrual	32,177	16,410
Restructured	15,702	16,515
Total nonperforming and restructured loans	49,190	34,060
Other real estate owned and repossessed assets	7,521	8,079
Total nonperforming and restructured assets	$ 56,711	$ 42,139

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Stock-Based Compensation - Summary of Activity Under Stock Option Plan (Detail) - Jun. 30, 2015 - USD ($) $ / shares in Units, $ in Thousands	Total
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding at beginning period - Options	1,029,657
Options granted	98,000
Options exercised	(57,250)
Options canceled, forfeited or expired - Options	(22,500)
Outstanding at ending period - Options	1,047,907
Exercisable at ending period - Options	475,682
Outstanding at beginning period - Wgtd. Avg. Exercise Price	$ 36.55
Options granted - Wgtd. Avg. Exercise Price	60.02
Options exercised - Wgtd. Avg. Exercise Price	23.64
Options cancelled, forfeited, or expired - Wgtd. Avg. Exercise Price	37.14
Outstanding at ending period - Wgtd. Avg. Exercise Price	39.44
Exercisable at ending period - Wgtd. Avg. Exercise Price	$ 31.54
Outstanding at ending period - Wgtd. Avg. Remaining Contractual Term, years	8 years 10 months 17 days
Exercisable at ending period - Wgtd. Avg. Remaining Contractual Term, years	5 years 2 months 16 days
Outstanding at ending period - Aggregate Intrinsic Value	$ 27,260
Exercisable at ending period - Aggregate Intrinsic Value	$ 16,131

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Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2015 Business_Unit
Segment Reporting [Abstract]
Number of principal business units	4

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Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks	$ 179,190	$ 203,545
Interest-bearing deposits with banks	1,638,038	1,710,350
Securities (fair value: $537,387 and $524,861, respectively)	537,319	524,783
Loans held for sale	13,587	9,433
Loans (net of unearned interest)	3,858,332	3,851,398
Allowance for loan losses	(42,621)	(40,889)
Loans, net of allowance for loan losses	3,815,711	3,810,509
Premises and equipment, net	120,880	121,341
Other real estate owned	7,357	7,859
Intangible assets, net	9,681	10,635
Goodwill	44,594	44,962
Accrued interest receivable and other assets	132,541	131,555
Total assets	6,498,898	6,574,972
Deposits:
Noninterest-bearing	2,321,206	2,411,066
Interest-bearing	3,487,015	3,493,638
Total deposits	5,808,221	5,904,704
Short-term borrowings	2,075	3,982
Accrued interest payable and other liabilities	27,554	30,168
Junior subordinated debentures	26,804	26,804
Total liabilities	$ 5,864,654	$ 5,965,658
Commitments and contingent liabilities
Stockholders' equity:
Common stock, $1.00 par, 20,000,000 shares authorized; shares issued and outstanding: 15,562,298 and 15,504,513, respectively	$ 15,562	$ 15,504
Capital surplus	99,202	96,841
Retained earnings	517,028	492,776
Accumulated other comprehensive income, net of income tax of $1,547, and $2,644, respectively	2,452	4,193
Total stockholders' equity	634,244	609,314
Total liabilities and stockholders' equity	$ 6,498,898	$ 6,574,972
Senior Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value
Cumulative Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value

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Loans and Allowance for Loan Losses - Activity in All by Class of Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 41,557	$ 39,924	$ 40,889	$ 39,034
Charge- offs	(266)	(681)	(1,028)	(1,155)
Recoveries	59	925	155	1,071
Net charge- offs	(207)	244	(873)	(84)
Provisions charged to operations	1,271	3,129	2,605	4,347
Balance at end of period	42,621	43,297	42,621	43,297
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	4,461	5,012	4,406	4,827
Charge- offs		(18)	(1)	(22)
Recoveries		34	1	65
Net charge- offs		16		43
Provisions charged to operations	42	213	97	371
Balance at end of period	4,503	5,241	4,503	5,241
Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	9,898	10,685	9,616	11,026
Recoveries	1		1	3
Net charge- offs	1		1	3
Provisions charged to operations	(19)	553	263	209
Balance at end of period	9,880	11,238	9,880	11,238
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	2,984	3,237	2,948	2,825
Charge- offs	(56)	(32)	(96)	(162)
Recoveries	5	31	14	41
Net charge- offs	(51)	(1)	(82)	(121)
Provisions charged to operations	177	74	244	606
Balance at end of period	3,110	3,310	3,110	3,310
Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	6,578	6,485	6,269	6,708
Charge- offs	(7)	(44)	(75)	(93)
Recoveries	4	10	9	14
Net charge- offs	(3)	(34)	(66)	(79)
Provisions charged to operations	(90)	364	282	186
Balance at end of period	6,485	6,815	6,485	6,815
Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	13,068	9,703	12,771	8,977
Charge- offs	(16)	(61)	(169)	(131)
Recoveries	7	16	38	30
Net charge- offs	(9)	(45)	(131)	(101)
Provisions charged to operations	654	2,309	1,073	3,091
Balance at end of period	13,713	11,967	13,713	11,967
Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	2,327	2,573	2,404	2,556
Charge- offs	(103)	(190)	(230)	(331)
Recoveries	40	46	55	108
Net charge- offs	(63)	(144)	(175)	(223)
Provisions charged to operations	235	216	270	312
Balance at end of period	2,499	2,645	2,499	2,645
Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	2,241	2,072	2,359	1,991
Charge- offs	(50)	(188)	(263)	(251)
Recoveries		110	9	127
Net charge- offs	(50)	(78)	(254)	(124)
Provisions charged to operations	240	(1)	326	126
Balance at end of period	2,431	1,993	2,431	1,993
Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		157	116	124
Charge- offs	(34)	(148)	(194)	(165)
Recoveries	2	678	28	683
Net charge- offs	(32)	530	(166)	518
Provisions charged to operations	$ 32	(599)	$ 50	(554)
Balance at end of period		$ 88		$ 88

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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	COMMON STOCK [Member]	CAPITAL SURPLUS [Member]	RETAINED EARNINGS [Member]	ACCUMULATED OTHER COMPREHENSIVE INCOME [Member]
Balance at beginning of period at Dec. 31, 2013		$ 15,334	$ 88,803	$ 448,953	$ 3,907
Shares issued		65	1,620
Net income	$ 29,345			29,345
Net change	991				991
Tax effect of stock options			248
Dividends on common stock				(9,537)
Stock-based compensation arrangements			776
Balance at end of period at Jun. 30, 2014	580,505	15,399	91,447	468,761	4,898
Balance at beginning of period at Mar. 31, 2014		15,364	89,951	458,857	3,940
Shares issued		35	742
Net income	14,688			14,688
Net change	958				958
Tax effect of stock options			325
Dividends on common stock				(4,784)
Stock-based compensation arrangements			429
Balance at end of period at Jun. 30, 2014	580,505	15,399	91,447	468,761	4,898
Balance at beginning of period at Dec. 31, 2014	609,314	15,504	96,841	492,776	4,193
Shares issued		58	1,316
Net income	34,812			34,812
Net change	(1,741)				(1,741)
Tax effect of stock options			291
Dividends on common stock				(10,560)
Stock-based compensation arrangements			754
Balance at end of period at Jun. 30, 2015	634,244	15,562	99,202	517,028	2,452
Balance at beginning of period at Mar. 31, 2015		15,512	97,477	503,758	4,932
Shares issued		50	1,080
Net income	18,553			18,553
Net change	(2,480)				(2,480)
Tax effect of stock options			355
Dividends on common stock				(5,283)
Stock-based compensation arrangements			290
Balance at end of period at Jun. 30, 2015	$ 634,244	$ 15,562	$ 99,202	$ 517,028	$ 2,452

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Stockholders' Equity - Required Capital Amounts and Company's Respective Ratios (Detail) - Jun. 30, 2015 - USD ($) $ in Thousands	Total
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital Amount	$ 652,100
Total Capital To Risk Weighted Assets Actual Ratio	15.61%
Capital Required For Capital Adequacy Amount	$ 334,229
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	8.00%
Common Equity Tier 1 Risk Based Capital Amount	$ 583,479
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	13.97%
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 188,004
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio	4.50%
Tier 1 Risk Based Capital Amount	$ 609,479
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	14.59%
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 250,672
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio	6.00%
Tier 1 Capital Amount	$ 609,479
Tier 1 Capital To Average Assets Ratio	9.45%
Tier 1 Capital Required For Capital Adequacy Amount	$ 259,959
Tier 1 Capital Required For Capital Adequacy To Average Assets Ratio	4.00%
BancFirst [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital Amount	$ 598,091
Total Capital To Risk Weighted Assets Actual Ratio	14.40%
Capital Required For Capital Adequacy Amount	$ 332,259
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	8.00%
Capital Required To Be Well Capitalized Amount	$ 415,324
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	10.00%
Common Equity Tier 1 Risk Based Capital Amount	$ 535,470
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	12.89%
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 186,896
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio	4.50%
Common Equity Tier 1 Risk Based Capital Required To Be well Capitalized Amount	$ 269,960
Common Equity Tier 1 Risk Based Capital Required To Be well Capitalized Amount	6.50%
Tier 1 Risk Based Capital Amount	$ 555,470
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	13.37%
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 249,194
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio	6.00%
Tier 1 Risk Based Capital Required To Be well Capitalized Amount	$ 332,259
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	8.00%
Tier 1 Capital Amount	$ 555,470
Tier 1 Capital To Average Assets Ratio	8.62%
Tier 1 Capital Required For Capital Adequacy Amount	$ 259,366
Tier 1 Capital Required For Capital Adequacy To Average Assets Ratio	4.00%
Tier 1 Capital Required To Be Well Capitalized Amount	$ 324,207
Tier 1 Capital Required To Be Well Capitalized To Average assets Ratio	5.00%

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Securities - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($)
Investments Debt And Equity Securities [Abstract]
Unrealized gain on investment	$ 3.3

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Fair Value Measurements - Changes in Level 3 Assets Measured at Estimated Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance at the beginning of the year	$ 28,909	$ 32,002
Purchases, issuances and settlements	(1,409)	(2,287)
Sales	(8,593)	(499)
Gains included in earnings	7,055	382
Total unrealized losses	(4,029)	732
Balance at the end of the period	$ 21,933	$ 30,330

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Loans and Allowance for Loan Losses (Tables)

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Schedule of Loans Outstanding by Category

The following is a schedule of loans outstanding by category:

	June 30, 2015					December 31, 2014
	Amount		Percent			Amount		Percent
	(Dollars in thousands)
Commercial and financial:
Commercial and industrial	$	741,595		19.22	%	$	745,106		19.35	%
Oil & gas production and equipment		88,488		2.29			104,940		2.72
Agriculture		117,729		3.05			132,830		3.45
State and political subdivisions:
Taxable		17,884		0.46			20,431		0.53
Tax-exempt		27,687		0.72			20,952		0.54
Real estate:
Construction		363,067		9.41			356,621		9.26
Farmland		148,500		3.85			149,507		3.88
One to four family residences		785,170		20.35			766,362		19.90
Multifamily residential properties		64,366		1.67			66,766		1.73
Commercial		1,200,331		31.11			1,191,477		30.94
Consumer		270,172		7.00			267,179		6.94
Other (not classified above)		33,343		0.87			29,227		0.76
Total loans	$	3,858,332		100.00	%	$	3,851,398		100.00	%

Summary of Nonperforming and Restructured Assets

The following is a summary of nonperforming and restructured assets:

	June 30,		December 31,
	2015		2014
	(Dollars in thousands)
Past due 90 days or more and still accruing	$	1,311	$	1,135
Nonaccrual		32,177		16,410
Restructured		15,702		16,515
Total nonperforming and restructured loans		49,190		34,060
Other real estate owned and repossessed assets		7,521		8,079
Total nonperforming and restructured assets	$	56,711	$	42,139

Summary of Amounts Included in Nonaccrual Loans Segregated by Class of Loans

The following table is a summary of amounts included in nonaccrual loans, segregated by class of loans. Residential real estate refers to one-to-four family real estate.

	June 30, 2015		December 31, 2014
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	192	$	296
Non-residential real estate other		4,937		5,126
Residential real estate permanent mortgage		777		681
Residential real estate all other		1,479		1,796
Commercial and financial:
Non-consumer non-real estate		18,522		1,556
Consumer non-real estate		220		250
Other loans		1,629		1,659
Acquired loans		4,421		5,046
Total	$	32,177	$	16,410

Age Analysis of Past Due Loans Segregated by Class of Loans

The following table presents an age analysis of past due loans, segregated by class of loans:

	Age Analysis of Past Due Loans
	30-59 Days Past Due		60-89 Days Past Due		90 Days and Greater		Total Past Due Loans		Current Loans		Total Loans		Accruing Loans 90 Days or More Past Due
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	235	$	—	$	159	$	394	$	492,117	$	492,511	$	159
Non-residential real estate other		914		—		825		1,739		961,559		963,298		—
Residential real estate permanent mortgage		865		659		487		2,011		320,538		322,549		219
Residential real estate all other		2,954		233		1,122		4,309		638,649		642,958		326
Commercial and financial:
Non-consumer non-real estate		16,192		1,671		1,300		19,163		919,622		938,785		357
Consumer non-real estate		1,403		693		317		2,413		252,336		254,749		213
Other loans		891		567		485		1,943		155,372		157,315		—
Acquired loans		525		676		1,472		2,673		83,494		86,167		37
Total	$	23,979	$	4,499	$	6,167	$	34,645	$	3,823,687	$	3,858,332	$	1,311
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	635	$	—	$	269	$	904	$	482,731	$	483,635	$	70
Non-residential real estate other		377		317		825		1,519		952,484		954,003		—
Residential real estate permanent mortgage		2,010		758		544		3,312		304,267		307,579		172
Residential real estate all other		1,820		194		1,488		3,502		633,586		637,088		387
Commercial and financial:
Non-consumer non-real estate		841		71		793		1,705		965,002		966,707		24
Consumer non-real estate		1,914		711		330		2,955		244,810		247,765		215
Other loans		1,858		916		741		3,515		149,469		152,984		—
Acquired loans		1,815		997		1,304		4,116		97,521		101,637		267
Total	$	11,270	$	3,964	$	6,294	$	21,528	$	3,829,870	$	3,851,398	$	1,135

Impaired Loans Segregated by Class of Loans

The following table presents impaired loans, segregated by class of loans. No material amount of interest income was recognized on impaired loans subsequent to their classification as impaired.

	Impaired Loans
	Unpaid Principal Balance		Recorded Investment with Allowance		Related Allowance		Average Recorded Investment
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	467	$	386	$	14	$	393
Non-residential real estate other		22,354		20,184		1,316		20,553
Residential real estate permanent mortgage		1,324		1,107		85		941
Residential real estate all other		2,122		1,889		202		2,058
Commercial and financial:
Non-consumer non-real estate		19,328		18,879		4,503		6,740
Consumer non-real estate		612		597		119		536
Other loans		2,056		1,628		80		1,699
Acquired loans		8,183		5,153		—		7,120
Total	$	56,446	$	49,823	$	6,319	$	40,040
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	521	$	448	$	15	$	453
Non-residential real estate other		23,154		21,164		1,364		21,522
Residential real estate permanent mortgage		1,095		880		85		1,042
Residential real estate all other		2,480		2,270		299		2,273
Commercial and financial:
Non-consumer non-real estate		1,895		1,580		431		1,646
Consumer non-real estate		664		648		138		602
Other loans		2,101		1,659		228		1,512
Acquired loans		10,933		7,708		—		8,082
Total	$	42,843	$	36,357	$	2,560	$	37,132

Internal Loan Grading by Class of Loans

The following table presents internal loan grading by class of loans:

	Internal Loan Grading
	Grade
		1		2		3		4		5	Total
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	407,818	$	78,987	$	5,455	$	251	$	—	$	492,511
Non-residential real estate other		809,293		119,551		29,517		4,937		—		963,298
Residential real estate permanent mortgage		283,951		30,254		7,295		1,049		—		322,549
Residential real estate all other		529,071		101,307		10,608		1,972		—		642,958
Commercial and financial:
Non-consumer non-real estate		773,811		133,243		13,080		18,651		—		938,785
Consumer non-real estate		239,719		12,349		2,154		524		3		254,749
Other loans		150,841		3,511		2,677		286		—		157,315
Acquired loans		41,592		30,532		9,277		4,476		290		86,167
Total	$	3,236,096	$	509,734	$	80,063	$	32,146	$	293	$	3,858,332
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	402,706	$	75,555	$	5,008	$	366	$	—	$	483,635
Non-residential real estate other		795,209		133,542		20,126		5,126		—		954,003
Residential real estate permanent mortgage		272,411		27,855		6,369		944		—		307,579
Residential real estate all other		529,555		99,214		6,146		2,173		—		637,088
Commercial and financial:
Non-consumer non-real estate		821,094		117,457		26,550		1,606		—		966,707
Consumer non-real estate		233,424		12,229		1,548		564		—		247,765
Other loans		147,758		4,261		601		173		191		152,984
Acquired loans		46,465		36,951		12,651		5,206		364		101,637
Total	$	3,248,622	$	507,064	$	78,999	$	16,158	$	555	$	3,851,398

Activity in All by Class of Loans

The following table details activity in the ALL by class of loans for the period presented. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.

	ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period
	(Dollars in thousands)
Three Months Ended June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,461	$	—		$	—	$	—		$	42		$	4,503
Non-residential real estate other		9,898		—			1		1			(19	)		9,880
Residential real estate permanent mortgage		2,984		(56	)		5		(51	)		177			3,110
Residential real estate all other		6,578		(7	)		4		(3	)		(90	)		6,485
Commercial and financial:
Non-consumer non-real estate		13,068		(16	)		7		(9	)		654			13,713
Consumer non-real estate		2,327		(103	)		40		(63	)		235			2,499
Other loans		2,241		(50	)		—		(50	)		240			2,431
Acquired loans		—		(34	)		2		(32	)		32			—
Total	$	41,557	$	(266	)	$	59	$	(207	)	$	1,271		$	42,621
Six Months Ended June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,406	$	(1	)	$	1	$	—		$	97		$	4,503
Non-residential real estate other		9,616		—			1		1			263			9,880
Residential real estate permanent mortgage		2,948		(96	)		14		(82	)		244			3,110
Residential real estate all other		6,269		(75	)		9		(66	)		282			6,485
Commercial and financial:
Non-consumer non-real estate		12,771		(169	)		38		(131	)		1,073			13,713
Consumer non-real estate		2,404		(230	)		55		(175	)		270			2,499
Other loans		2,359		(263	)		9		(254	)		326			2,431
Acquired loans		116		(194	)		28		(166	)		50			—
Total	$	40,889	$	(1,028	)	$	155	$	(873	)	$	2,605		$	42,621

	ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period
	(Dollars in thousands)
Three Months Ended June 30, 2014
Real estate:
Non-residential real estate owner occupied	$	5,012	$	(18	)	$	34	$	16		$	213		$	5,241
Non-residential real estate other		10,685		—			—		—			553			11,238
Residential real estate permanent mortgage		3,237		(32	)		31		(1	)		74			3,310
Residential real estate all other		6,485		(44	)		10		(34	)		364			6,815
Commercial and financial:
Non-consumer non-real estate		9,703		(61	)		16		(45	)		2,309			11,967
Consumer non-real estate		2,573		(190	)		46		(144	)		216			2,645
Other loans		2,072		(188	)		110		(78	)		(1	)		1,993
Acquired loans		157		(148	)		678		530			(599	)		88
Total	$	39,924	$	(681	)	$	925	$	244		$	3,129		$	43,297
Six Months Ended June 30, 2014
Real estate:
Non-residential real estate owner occupied	$	4,827	$	(22	)	$	65	$	43		$	371		$	5,241
Non-residential real estate other		11,026		—			3		3			209			11,238
Residential real estate permanent mortgage		2,825		(162	)		41		(121	)		606			3,310
Residential real estate all other		6,708		(93	)		14		(79	)		186			6,815
Commercial and financial:
Non-consumer non-real estate		8,977		(131	)		30		(101	)		3,091			11,967
Consumer non-real estate		2,556		(331	)		108		(223	)		312			2,645
Other loans		1,991		(251	)		127		(124	)		126			1,993
Acquired loans		124		(165	)		683		518			(554	)		88
Total	$	39,034	$	(1,155	)	$	1,071	$	(84	)	$	4,347		$	43,297

Allowance for Loan Losses Outstanding by Impairment Methodology

The following table details the amount of ALL by class of loans for the period presented, detailed on the basis of the impairment methodology used by the Company.

	ALL
	June 30, 2015				December 31, 2014
	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied.	$	214	$	4,289	$	202	$	4,204
Non-residential real estate other		1,851		8,029		1,518		8,098
Residential real estate permanent mortgage		448		2,662		407		2,541
Residential real estate all other		935		5,550		743		5,526
Commercial and financial:
Non-consumer non-real estate		5,779		7,934		4,671		8,100
Consumer non-real estate		421		2,078		372		2,032
Other loans		56		2,375		214		2,145
Acquired loans		—		—		—		116
Total	$	9,704	$	32,917	$	8,127	$	32,762

Loans Outstanding by Impairment Methodology

The following table details the loans outstanding by class of loans for the period presented, on the basis of the impairment methodology used by the Company.

	Loans
	June 30, 2015						December 31, 2014
	Individually evaluated for impairment		Collectively evaluated for impairment		Loans acquired with deteriorated credit quality		Individually evaluated for impairment		Collectively evaluated for impairment		Loans acquired with deteriorated credit quality
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	5,706	$	486,805	$	—	$	5,374	$	478,261	$	—
Non-residential real estate other		34,454		928,844		—		25,251		928,752		—
Residential real estate permanent mortgage		8,344		314,205		—		7,313		300,266		—
Residential real estate all other		12,580		630,378		—		8,319		628,769		—
Commercial and financial:
Non-consumer non-real estate		31,731		907,054		—		28,156		938,551		—
Consumer non-real estate		2,682		252,067		—		2,112		245,653		—
Other loans		229		157,086		—		233		152,751		—
Acquired loans		—		72,124		14,043		—		83,416		18,221
Total	$	95,726	$	3,748,563	$	14,043	$	76,758	$	3,756,419	$	18,221

Transfers from Loans to Other Real Estate Owned and Repossessed Assets

Transfers from loans to other real estate owned and repossessed assets during the periods presented, are summarized as follows:

	Six Months Ended June 30,
	2015		2014
	(Dollars in thousands)
Other real estate owned	$	2,522	$	525
Repossessed assets		424		722
Total	$	2,946	$	1,247

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Securities - Maturity of Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Held for Investment, Contractual maturity of debt securities, Amortized Cost
Amortized cost, Within one year	$ 1,308	$ 1,451
Amortized cost, After one year but within five years	6,244	6,603
Amortized cost, After five years but within ten years	237	380
Amortized cost, After ten years	134	159
Amortized Cost	7,923	8,593
Available for sale, Contractual maturity of debt securities, Amortized Cost
Amortized Cost, Within one year	166,121	41,772
Amortized Cost, After one year but within five years	256,716	350,975
Amortized Cost, After five years but within ten years	15,810	21,990
Amortized Cost, After ten years	80,657	87,252
Total debt securities	519,304	501,989
Amortized Cost, Equity securities	6,093	7,364
Amortized Cost	525,397	509,353
Held for Investment, Contractual maturity of debt securities, Estimated Fair Value
Estimated Fair Value, Within one year	1,317	1,456
Estimated Fair Value, After one year but within five years	6,277	6,642
Estimated Fair Value, After five years but within ten years	249	396
Estimated Fair Value, After ten years	148	177
Estimated Fair Value	7,991	8,671
Available for sale, Contractual maturity of debt securities, Estimated Fair Value
Estimated Fair Value, Within one year	166,327	41,870
Estimated Fair Value, After one year but within five years	259,037	352,044
Estimated Fair Value, After five years but within ten years	16,491	22,717
Estimated Fair Value, After ten years	81,449	88,132
Total debt securities	523,304	504,763
Estimated Fair Value, Equity securities	6,092	11,427
Estimated Fair Value, Total	$ 529,396	$ 516,190

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Activity Under Stock Option Plan

The following table is a summary of the activity under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:

						Wgtd. Avg.
				Wgtd. Avg.		Remaining	Aggregate
				Exercise		Contractual	Intrinsic
	Options			Price		Term	Value
	(Dollars in thousands, except per share data)
Six Months Ended June 30, 2015
Outstanding at December 31, 2014		1,029,657		$	36.55
Options granted		98,000			60.02
Options exercised		(57,250	)		23.64
Options canceled, forfeited, or expired		(22,500	)		37.14
Outstanding at June 30, 2015		1,047,907			39.44	8.88 Yr	$	27,260
Exercisable at June 30, 2015		475,682			31.54	5.21 Yr	$	16,131

Options Granted and Options Exercised Under Stock Option Plan

The following table has additional information regarding options granted and options exercised under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Weighted average grant-date fair value per share of options granted	$	12.07	$	12.33	$	11.51	$	12.33
Total intrinsic value of options exercised		1,892		1,301		2,129		2,046
Cash received from options exercised		1,109		776		1,353		1,642
Tax benefit realized from options exercised		731		503		823		791

Stock-based Employee Compensation Expense

The following table is a summary of the Company’s recorded stock-based compensation expense:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Stock-based compensation expense	$	290	$	429	$	754	$	776
Tax benefit		112		166		292		300
Stock-based compensation expense, net of tax	$	178	$	263	$	462	$	476

Remaining Fair Value of Stock Options

The Company will continue to amortize the remaining fair value of stock options over the remaining vesting period of approximately seven years.  The following table shows the remaining fair value of stock options:

	June 30, 2015
	(Dollars in thousands)
Fair value of stock options	$	4,459

Assumptions Used for Computing Stock-Based Compensation Expense

The following table shows the assumptions used for computing stock-based compensation expense under the fair value method during the periods presented:

	Six Months Ended June 30,
	2015	2014
Risk-free interest rate	1.83 to 2.26%	2.54%
Dividend yield	2.00%	2.00%
Stock price volatility	18.23 to 19.22%	18.98%
Expected term	10 Yrs	10 Yrs

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Derivative Financial Instruments - Notional Amounts and Estimated Fair Values of Outstanding Derivative Positions (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative assets, Estimated Fair Value	$ 2,903	$ 6,124
Derivative liabilities, Estimated Fair Value	(1,602)	(4,756)
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets, Estimated Fair Value	2,903	6,124
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities, Estimated Fair Value	$ (1,602)	(4,756)
Oil [Member]
Derivatives, Fair Value [Line Items]
Notional Units	Barrels
Derivative assets, Notional Amount	$ 216	312
Derivative assets, Estimated Fair Value	1,768	4,629
Derivative liabilities, Notional Amount	(216)	(312)
Derivative liabilities, Estimated Fair Value	$ (1,426)	(4,271)
Natural Gas [Member]
Derivatives, Fair Value [Line Items]
Notional Units	MMBTUs
Derivative assets, Notional Amount	$ 5,525	2,010
Derivative assets, Estimated Fair Value	1,135	1,495
Derivative liabilities, Notional Amount	(5,525)	(2,010)
Derivative liabilities, Estimated Fair Value	$ (176)	$ (485)

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Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 34,812	$ 29,345
Adjustments to reconcile to net cash provided by operating activities:
Provision for loan losses	2,605	4,347
Depreciation and amortization	5,802	5,590
Net amortization of securities premiums and discounts	445	512
Realized securities gains	(7,121)	(535)
Gain on sales of loans	(989)	(818)
Cash receipts from the sale of loans originated for sale	84,029	71,074
Cash disbursements for loans originated for sale	(87,635)	(73,306)
Deferred income tax benefit	(1,464)	(2,943)
Gain on other assets	(65)	(535)
Increase in interest receivable	(740)	(411)
Decrease in interest payable	(14)	(316)
Amortization of stock-based compensation arrangements	754	776
Other, net	343	(1,619)
Net cash provided by operating activities	30,762	31,161
INVESTING ACTIVITIES
Net decrease in federal funds sold		4,619
Net cash and due from banks received from acquisitions		174,283
Purchases of available for sale securities	(30,923)	(203,890)
Proceeds from maturities, calls and paydowns of held for investment securities	670	2,689
Proceeds from maturities, calls and paydowns of available for sale securities	12,979	163,472
Proceeds from sales of available for sale securities	8,576	1,951
Net change in loans	(10,312)	(166,388)
Purchases of premises, equipment and computer software	(4,797)	(5,783)
Proceeds from the sale of other assets	3,647	3,322
Net cash used in investing activities	(20,160)	(25,725)
FINANCING ACTIVITIES
Net change in deposits	(96,483)	260
Net (decrease)/increase in short-term borrowings	(1,907)	7,727
Paydown of long-term borrowings		(6,938)
Issuance of common stock, net	1,665	1,933
Cash dividends paid	(10,544)	(9,516)
Net cash used in financing activities	(107,269)	(6,534)
Net decrease in cash, due from banks and interest-bearing deposits	(96,667)	(1,098)
Cash, due from banks and interest-bearing deposits at the beginning of the period	1,913,895	1,857,535
Cash, due from banks and interest-bearing deposits at the end of the period	1,817,228	1,856,437
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	6,078	6,853
Cash paid during the period for income taxes	17,230	13,770
Noncash investing and financing activities:
Unpaid common stock dividends declared	$ 5,281	$ 4,765

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Securities, fair value	$ 537,387	$ 524,861
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	15,562,298	15,504,513
Common stock, shares outstanding	15,562,298	15,504,513
Accumulated other comprehensive income, tax	$ 1,547	$ 2,644
Senior Preferred Stock [Member]
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Cumulative Preferred Stock [Member]
Preferred stock, par value	$ 5.00	$ 5.00
Preferred stock, shares authorized	900,000	900,000
Preferred stock, shares issued	0	0

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Derivative Financial Instruments

6 Months Ended

Jun. 30, 2015

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

(10) DERIVATIVE FINANCIAL INSTRUMENTS

The Company enters into oil and gas swaps and options contracts to accommodate the business needs of its customers.  Upon the origination of an oil or gas swap or option contract with a customer, the Company simultaneously enters into an offsetting contract with a counterparty to mitigate the exposure to fluctuations in oil and gas prices.  These derivatives are not designated as hedged instruments and are recorded on the Company’s consolidated balance sheet at fair value.

The Company utilizes dealer quotations and observable market data inputs to substantiate internal valuation models.  The notional amounts and estimated fair values of oil and gas derivative positions outstanding are presented in the following table:

		June 30, 2015						December 31, 2014
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value			Notional Amount			Estimated Fair Value
		(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		216		$	1,768			312		$	4,629
Derivative liabilities	Barrels		(216	)		(1,426	)		(312	)		(4,271	)
Natural Gas
Derivative assets	MMBTUs		5,525			1,135			2,010			1,495
Derivative liabilities	MMBTUs		(5,525	)		(176	)		(2,010	)		(485	)
Total Fair Value	Included in
Derivative assets	Other assets					2,903						6,124
Derivative liabilities	Other liabilities					(1,602	)					(4,756	)

The following table is a summary of the Company’s recognized income related to the activity, which was included in other noninterest income:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Derivative income	$	37	$	149	$	192	$	298

The Company’s credit exposure on oil and gas swaps and options varies based on the current market prices of oil and natural gas.  Other than credit risk, changes in the fair value of customer positions will be offset by equal and opposite changes in the counterparty positions.  The net positive fair value of the contracts is the profit derived from the activity and is unaffected by market price movements. The Company’s share of total profit is approximately 35%.

Customer credit exposure is managed by strict position limits and is primarily offset by first liens on production while the remainder is offset by cash.  Counterparty credit exposure is managed by selecting highly rated counterparties (rated A- or better by Standard and Poor’s) and monitoring market information.

The following table is a summary of the Company’s net credit exposure relating to oil and gas swaps and options with bank counterparties:

	June 30, 2015		December 31, 2014
	(Dollars inthousands)
Credit exposure	$	1,503	$	4,028

Balance Sheet Offsetting

Derivatives may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements. The Company’s derivative transactions with upstream financial institution counterparties and bank customers are generally executed under International Swaps and Derivative Association (“ISDA”) master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, the Company does not generally offset such financial instruments for financial reporting purposes.

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Trading Symbol	BANF
Entity Registrant Name	BANCFIRST CORP /OK/
Entity Central Index Key	0000760498
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		15,580,827

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Segment Information

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Segment Information

(11) SEGMENT INFORMATION

The Company evaluates its performance with an internal profitability measurement system that measures the profitability of its business units on a pre-tax basis. The four principal business units are metropolitan banks, community banks, other financial services and executive, operations and support. Metropolitan and community banks offer traditional banking products such as commercial and retail lending and a full line of deposit accounts. Metropolitan banks consist of banking locations in the metropolitan Oklahoma City and Tulsa areas.  Community banks consist of banking locations in communities throughout Oklahoma. Other financial services are specialty product business units including guaranteed small business lending, residential mortgage lending, trust services, securities brokerage, electronic banking and insurance. The executive, operations and support groups represent executive management, operational support and corporate functions that are not allocated to the other business units.

The results of operations and selected financial information for the four business units are as follows:

	Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support			Eliminations			Consolidated
	(Dollars in thousands)
Three Months Ended June 30, 2015
Net interest income (expense)	$	15,325	$	29,444	$	1,900	$	(454	)	$	—		$	46,215
Noninterest income		3,533		12,990		11,387		21,326			(20,521	)		28,715
Income before taxes		9,800		17,400		6,910		14,604			(20,484	)		28,230
Three Months Ended June 30, 2014
Net interest income (expense)	$	15,372	$	28,955	$	1,568	$	(406	)	$	—		$	45,489
Noninterest income		3,463		12,973		6,329		15,919			(15,073	)		23,611
Income before taxes		7,484		17,692		2,292		7,680			(15,034	)		20,114
Six Months Ended June 30, 2015
Net interest income (expense)	$	30,725	$	58,499	$	3,518	$	(901	)	$	—		$	91,841
Noninterest income		6,990		25,316		20,114		38,618			(37,027	)		54,011
Income before taxes		19,689		33,807		11,917		24,408			(36,926	)		52,895
Six Months Ended June 30, 2014
Net interest income (expense)	$	29,159	$	56,196	$	2,944	$	(781	)	$	—		$	87,518
Noninterest income		6,876		25,239		13,385		31,874			(30,201	)		47,173
Income before taxes		15,274		32,769		5,358		17,359			(30,109	)		40,651
Total Assets:
June 30, 2015	$	2,262,905	$	4,093,820	$	170,089	$	667,250		$	(695,166	)	$	6,498,898
December 31, 2014		2,298,828		4,113,783		145,814		679,194			(662,647	)		6,574,972

The financial information for each business unit is presented on the basis used internally by management to evaluate performance and allocate resources.  The Company utilizes a transfer pricing system to allocate the benefit or cost of funds provided or used by the various business units.  Certain services provided by the support group to other business units, such as item processing, are allocated at rates approximating the cost of providing the services.  Eliminations are adjustments to consolidate the business units and companies. Capital expenditures are generally charged to the business unit using the asset.

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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
INTEREST INCOME
Loans, including fees	$ 46,490	$ 45,855	$ 92,439	$ 88,504
Securities:
Taxable	1,458	1,502	2,857	2,807
Tax-exempt	235	273	481	553
Federal funds sold				1
Interest-bearing deposits with banks	1,066	1,096	2,128	2,190
Total interest income	49,249	48,726	97,905	94,055
INTEREST EXPENSE
Deposits	2,542	2,733	5,080	5,522
Short-term borrowings	1	5	2	7
Long-term borrowings		7		25
Junior subordinated debentures	491	492	982	983
Total interest expense	3,034	3,237	6,064	6,537
Net interest income	46,215	45,489	91,841	87,518
Provision for loan losses	1,271	3,129	2,605	4,347
Net interest income after provision for loan losses	44,944	42,360	89,236	83,171
NONINTEREST INCOME
Trust revenue	2,200	2,315	4,542	4,466
Service charges on deposits	14,312	14,360	27,664	27,818
Securities transactions	5,392	85	7,121	535
Income from sales of loans	549	467	989	818
Insurance commissions	3,120	3,262	7,188	7,228
Cash management	1,886	1,703	3,705	3,288
Gain on sale of other assets	41	3	81	8
Other	1,215	1,416	2,721	3,012
Total noninterest income	28,715	23,611	54,011	47,173
NONINTEREST EXPENSE
Salaries and employee benefits	27,886	27,478	55,399	53,416
Occupancy, net	2,700	2,784	5,535	5,573
Depreciation	2,449	2,375	4,913	4,724
Amortization of intangible assets	445	458	889	866
Data processing services	1,179	1,185	2,296	2,355
Net expense from other real estate owned	(184)	(406)	130	144
Marketing and business promotion	1,401	1,661	3,080	3,377
Deposit insurance	836	873	1,662	1,646
Other	8,717	9,449	16,448	17,592
Total noninterest expense	45,429	45,857	90,352	89,693
Income before taxes	28,230	20,114	52,895	40,651
Income tax expense	(9,677)	(5,426)	(18,083)	(11,306)
Net income	$ 18,553	$ 14,688	$ 34,812	$ 29,345
NET INCOME PER COMMON SHARE
Basic	$ 1.19	$ 0.94	$ 2.24	$ 1.90
Diluted	$ 1.17	$ 0.92	$ 2.20	$ 1.86
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $261, $(618), $(439) and $(1,021), respectively	$ (417)	$ 980	$ 694	$ 1,045
Reclassification adjustment for gains included in net income, net of tax of $1,302, $14, $1,536 and $34, respectively	(2,063)	(22)	(2,435)	(54)
Other comprehensive gain (loss), net of tax of $1,563, $(604), $1,097 and $(987), respectively	(2,480)	958	(1,741)	991
Comprehensive income	$ 16,073	$ 15,646	$ 33,071	$ 30,336

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Intangible Assets

6 Months Ended

Jun. 30, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

(5) INTANGIBLE ASSETS

The following is a summary of intangible assets:

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in thousands)
As of June 30, 2015
Core deposit intangibles	$	13,198	$	(6,720	)	$	6,478
Customer relationship intangibles		5,699		(2,880	)		2,819
Mortgage servicing intangibles		595		(211	)		384
Total	$	19,492	$	(9,811	)	$	9,681
As of December 31, 2014
Core deposit intangibles	$	13,198	$	(6,013	)	$	7,185
Customer relationship intangibles		5,699		(2,699	)		3,000
Mortgage servicing intangibles		643		(193	)		450
Total	$	19,540	$	(8,905	)	$	10,635

The following is a summary of goodwill by business segment:

						Other		Executive,
	Metropolitan		Community			Financial		Operations
	Banks		Banks			Services		& Support		Consolidated
	(Dollars in thousands)
Balance at December 31, 2014	$	8,078	$	30,970		$	5,464	$	450	$	44,962
Impairment		—		(368	)		—		—		(368	)
Balance at June 30, 2015	$	8,078	$	30,602		$	5,464	$	450	$	44,594

In June 2015, the Company recorded an impairment loss of $368,000 after adopting a plan in the second quarter to close a small branch and leave a full-service ATM to serve the community.   

Additional information for intangible assets can be found in Note (7) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

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Loans and Allowance for Loan Losses

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Loans and Allowance for Loan Losses

(4) LOANS AND ALLOWANCE FOR LOAN LOSSES

The following is a schedule of loans outstanding by category:

	June 30, 2015					December 31, 2014
	Amount		Percent			Amount		Percent
	(Dollars in thousands)
Commercial and financial:
Commercial and industrial	$	741,595		19.22	%	$	745,106		19.35	%
Oil & gas production and equipment		88,488		2.29			104,940		2.72
Agriculture		117,729		3.05			132,830		3.45
State and political subdivisions:
Taxable		17,884		0.46			20,431		0.53
Tax-exempt		27,687		0.72			20,952		0.54
Real estate:
Construction		363,067		9.41			356,621		9.26
Farmland		148,500		3.85			149,507		3.88
One to four family residences		785,170		20.35			766,362		19.90
Multifamily residential properties		64,366		1.67			66,766		1.73
Commercial		1,200,331		31.11			1,191,477		30.94
Consumer		270,172		7.00			267,179		6.94
Other (not classified above)		33,343		0.87			29,227		0.76
Total loans	$	3,858,332		100.00	%	$	3,851,398		100.00	%

The Company’s loans are mostly to customers within Oklahoma and over 65% of the loans are secured by real estate.  Credit risk on loans is managed through limits on amounts loaned to individual borrowers, underwriting standards and loan monitoring procedures. The amounts and types of collateral obtained, if any, to secure loans are based upon the Company’s underwriting standards and management’s credit evaluation. Collateral varies, but may include real estate, equipment, accounts receivable, inventory, livestock and securities. The Company’s interest in collateral is secured through filing mortgages and liens, and in some cases, by possession of the collateral.

Accounting policies related to appraisals, nonaccruals and charge-offs are disclosed in Note (1) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Nonperforming and Restructured Assets

The following is a summary of nonperforming and restructured assets:

	June 30,		December 31,
	2015		2014
	(Dollars in thousands)
Past due 90 days or more and still accruing	$	1,311	$	1,135
Nonaccrual		32,177		16,410
Restructured		15,702		16,515
Total nonperforming and restructured loans		49,190		34,060
Other real estate owned and repossessed assets		7,521		8,079
Total nonperforming and restructured assets	$	56,711	$	42,139

Nonaccrual loans, accruing loans past due 90 days or more, and restructured loans are shown in the table above. Had nonaccrual loans performed in accordance with their original contractual terms, the Company would have recognized additional interest income of approximately $922,000 for the six months ended June 30, 2015 and approximately $481,000 for the six months ended June 30, 2014.

Restructured loans consisted primarily of one relationship restructured to defer principal payments. The relationship was evaluated by management and determined to be well collateralized.  Additionally, none of the concessions granted involved a principal reduction or a change from the current market rate of interest.  The collateral value is monitored periodically to evaluate possible impairment. The Company charges interest on principal balances outstanding during deferral periods. As a result, the current and future financial effects of the recorded balance of loans considered to be restructured were not considered to be material.

Loans are segregated into classes based upon the nature of the collateral and the borrower. These classes are used to estimate the credit risk component in the allowance for loan losses.

The following table is a summary of amounts included in nonaccrual loans, segregated by class of loans. Residential real estate refers to one-to-four family real estate.

	June 30, 2015		December 31, 2014
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	192	$	296
Non-residential real estate other		4,937		5,126
Residential real estate permanent mortgage		777		681
Residential real estate all other		1,479		1,796
Commercial and financial:
Non-consumer non-real estate		18,522		1,556
Consumer non-real estate		220		250
Other loans		1,629		1,659
Acquired loans		4,421		5,046
Total	$	32,177	$	16,410

The following table presents an age analysis of past due loans, segregated by class of loans:

	Age Analysis of Past Due Loans
	30-59 Days Past Due		60-89 Days Past Due		90 Days and Greater		Total Past Due Loans		Current Loans		Total Loans		Accruing Loans 90 Days or More Past Due
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	235	$	—	$	159	$	394	$	492,117	$	492,511	$	159
Non-residential real estate other		914		—		825		1,739		961,559		963,298		—
Residential real estate permanent mortgage		865		659		487		2,011		320,538		322,549		219
Residential real estate all other		2,954		233		1,122		4,309		638,649		642,958		326
Commercial and financial:
Non-consumer non-real estate		16,192		1,671		1,300		19,163		919,622		938,785		357
Consumer non-real estate		1,403		693		317		2,413		252,336		254,749		213
Other loans		891		567		485		1,943		155,372		157,315		—
Acquired loans		525		676		1,472		2,673		83,494		86,167		37
Total	$	23,979	$	4,499	$	6,167	$	34,645	$	3,823,687	$	3,858,332	$	1,311
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	635	$	—	$	269	$	904	$	482,731	$	483,635	$	70
Non-residential real estate other		377		317		825		1,519		952,484		954,003		—
Residential real estate permanent mortgage		2,010		758		544		3,312		304,267		307,579		172
Residential real estate all other		1,820		194		1,488		3,502		633,586		637,088		387
Commercial and financial:
Non-consumer non-real estate		841		71		793		1,705		965,002		966,707		24
Consumer non-real estate		1,914		711		330		2,955		244,810		247,765		215
Other loans		1,858		916		741		3,515		149,469		152,984		—
Acquired loans		1,815		997		1,304		4,116		97,521		101,637		267
Total	$	11,270	$	3,964	$	6,294	$	21,528	$	3,829,870	$	3,851,398	$	1,135

Impaired Loans

Loans are considered impaired when, based on current information and events, it is probable the Company will be unable to collect the full amount of scheduled principal and interest payments in accordance with the original contractual terms of the loan agreement. If a loan is impaired, a specific valuation allowance may be allocated if necessary so that the loan is reported, net of allowance for loss, at the present value of future cash flows using the loan’s existing rate, or the fair value of collateral if repayment is expected solely from the collateral.

The following table presents impaired loans, segregated by class of loans. No material amount of interest income was recognized on impaired loans subsequent to their classification as impaired.

	Impaired Loans
	Unpaid Principal Balance		Recorded Investment with Allowance		Related Allowance		Average Recorded Investment
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	467	$	386	$	14	$	393
Non-residential real estate other		22,354		20,184		1,316		20,553
Residential real estate permanent mortgage		1,324		1,107		85		941
Residential real estate all other		2,122		1,889		202		2,058
Commercial and financial:
Non-consumer non-real estate		19,328		18,879		4,503		6,740
Consumer non-real estate		612		597		119		536
Other loans		2,056		1,628		80		1,699
Acquired loans		8,183		5,153		—		7,120
Total	$	56,446	$	49,823	$	6,319	$	40,040
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	521	$	448	$	15	$	453
Non-residential real estate other		23,154		21,164		1,364		21,522
Residential real estate permanent mortgage		1,095		880		85		1,042
Residential real estate all other		2,480		2,270		299		2,273
Commercial and financial:
Non-consumer non-real estate		1,895		1,580		431		1,646
Consumer non-real estate		664		648		138		602
Other loans		2,101		1,659		228		1,512
Acquired loans		10,933		7,708		—		8,082
Total	$	42,843	$	36,357	$	2,560	$	37,132

Credit Risk Monitoring and Loan Grading

The Company considers various factors to monitor the credit risk in the loan portfolio including volume and severity of loan delinquencies, nonaccrual loans, internal grading of loans, historical loan loss experience and economic conditions.

An internal risk grading system is used to indicate the credit risk of loans. The loan grades used by the Company are for internal risk identification purposes and do not directly correlate to regulatory classification categories or any financial reporting definitions.

The general characteristics of the risk grades are disclosed in Note (5) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

The following table presents internal loan grading by class of loans:

	Internal Loan Grading
	Grade
		1		2		3		4		5	Total
	(Dollars in thousands)
As of June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	407,818	$	78,987	$	5,455	$	251	$	—	$	492,511
Non-residential real estate other		809,293		119,551		29,517		4,937		—		963,298
Residential real estate permanent mortgage		283,951		30,254		7,295		1,049		—		322,549
Residential real estate all other		529,071		101,307		10,608		1,972		—		642,958
Commercial and financial:
Non-consumer non-real estate		773,811		133,243		13,080		18,651		—		938,785
Consumer non-real estate		239,719		12,349		2,154		524		3		254,749
Other loans		150,841		3,511		2,677		286		—		157,315
Acquired loans		41,592		30,532		9,277		4,476		290		86,167
Total	$	3,236,096	$	509,734	$	80,063	$	32,146	$	293	$	3,858,332
As of December 31, 2014
Real estate:
Non-residential real estate owner occupied	$	402,706	$	75,555	$	5,008	$	366	$	—	$	483,635
Non-residential real estate other		795,209		133,542		20,126		5,126		—		954,003
Residential real estate permanent mortgage		272,411		27,855		6,369		944		—		307,579
Residential real estate all other		529,555		99,214		6,146		2,173		—		637,088
Commercial and financial:
Non-consumer non-real estate		821,094		117,457		26,550		1,606		—		966,707
Consumer non-real estate		233,424		12,229		1,548		564		—		247,765
Other loans		147,758		4,261		601		173		191		152,984
Acquired loans		46,465		36,951		12,651		5,206		364		101,637
Total	$	3,248,622	$	507,064	$	78,999	$	16,158	$	555	$	3,851,398

Allowance for Loan Losses Methodology

The allowance for loan losses (“ALL”) methodology is disclosed in Note (5) to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

The following table details activity in the ALL by class of loans for the period presented. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.

	ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period
	(Dollars in thousands)
Three Months Ended June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,461	$	—		$	—	$	—		$	42		$	4,503
Non-residential real estate other		9,898		—			1		1			(19	)		9,880
Residential real estate permanent mortgage		2,984		(56	)		5		(51	)		177			3,110
Residential real estate all other		6,578		(7	)		4		(3	)		(90	)		6,485
Commercial and financial:
Non-consumer non-real estate		13,068		(16	)		7		(9	)		654			13,713
Consumer non-real estate		2,327		(103	)		40		(63	)		235			2,499
Other loans		2,241		(50	)		—		(50	)		240			2,431
Acquired loans		—		(34	)		2		(32	)		32			—
Total	$	41,557	$	(266	)	$	59	$	(207	)	$	1,271		$	42,621
Six Months Ended June 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,406	$	(1	)	$	1	$	—		$	97		$	4,503
Non-residential real estate other		9,616		—			1		1			263			9,880
Residential real estate permanent mortgage		2,948		(96	)		14		(82	)		244			3,110
Residential real estate all other		6,269		(75	)		9		(66	)		282			6,485
Commercial and financial:
Non-consumer non-real estate		12,771		(169	)		38		(131	)		1,073			13,713
Consumer non-real estate		2,404		(230	)		55		(175	)		270			2,499
Other loans		2,359		(263	)		9		(254	)		326			2,431
Acquired loans		116		(194	)		28		(166	)		50			—
Total	$	40,889	$	(1,028	)	$	155	$	(873	)	$	2,605		$	42,621

	ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period
	(Dollars in thousands)
Three Months Ended June 30, 2014
Real estate:
Non-residential real estate owner occupied	$	5,012	$	(18	)	$	34	$	16		$	213		$	5,241
Non-residential real estate other		10,685		—			—		—			553			11,238
Residential real estate permanent mortgage		3,237		(32	)		31		(1	)		74			3,310
Residential real estate all other		6,485		(44	)		10		(34	)		364			6,815
Commercial and financial:
Non-consumer non-real estate		9,703		(61	)		16		(45	)		2,309			11,967
Consumer non-real estate		2,573		(190	)		46		(144	)		216			2,645
Other loans		2,072		(188	)		110		(78	)		(1	)		1,993
Acquired loans		157		(148	)		678		530			(599	)		88
Total	$	39,924	$	(681	)	$	925	$	244		$	3,129		$	43,297
Six Months Ended June 30, 2014
Real estate:
Non-residential real estate owner occupied	$	4,827	$	(22	)	$	65	$	43		$	371		$	5,241
Non-residential real estate other		11,026		—			3		3			209			11,238
Residential real estate permanent mortgage		2,825		(162	)		41		(121	)		606			3,310
Residential real estate all other		6,708		(93	)		14		(79	)		186			6,815
Commercial and financial:
Non-consumer non-real estate		8,977		(131	)		30		(101	)		3,091			11,967
Consumer non-real estate		2,556		(331	)		108		(223	)		312			2,645
Other loans		1,991		(251	)		127		(124	)		126			1,993
Acquired loans		124		(165	)		683		518			(554	)		88
Total	$	39,034	$	(1,155	)	$	1,071	$	(84	)	$	4,347		$	43,297

The following table details the amount of ALL by class of loans for the period presented, detailed on the basis of the impairment methodology used by the Company.

	ALL
	June 30, 2015				December 31, 2014
	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied.	$	214	$	4,289	$	202	$	4,204
Non-residential real estate other		1,851		8,029		1,518		8,098
Residential real estate permanent mortgage		448		2,662		407		2,541
Residential real estate all other		935		5,550		743		5,526
Commercial and financial:
Non-consumer non-real estate		5,779		7,934		4,671		8,100
Consumer non-real estate		421		2,078		372		2,032
Other loans		56		2,375		214		2,145
Acquired loans		—		—		—		116
Total	$	9,704	$	32,917	$	8,127	$	32,762

The following table details the loans outstanding by class of loans for the period presented, on the basis of the impairment methodology used by the Company.

	Loans
	June 30, 2015						December 31, 2014
	Individually evaluated for impairment		Collectively evaluated for impairment		Loans acquired with deteriorated credit quality		Individually evaluated for impairment		Collectively evaluated for impairment		Loans acquired with deteriorated credit quality
	(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	5,706	$	486,805	$	—	$	5,374	$	478,261	$	—
Non-residential real estate other		34,454		928,844		—		25,251		928,752		—
Residential real estate permanent mortgage		8,344		314,205		—		7,313		300,266		—
Residential real estate all other		12,580		630,378		—		8,319		628,769		—
Commercial and financial:
Non-consumer non-real estate		31,731		907,054		—		28,156		938,551		—
Consumer non-real estate		2,682		252,067		—		2,112		245,653		—
Other loans		229		157,086		—		233		152,751		—
Acquired loans		—		72,124		14,043		—		83,416		18,221
Total	$	95,726	$	3,748,563	$	14,043	$	76,758	$	3,756,419	$	18,221

Transfers from Loans

Transfers from loans to other real estate owned and repossessed assets are non-cash transactions, and are not included in the statements of cash flow. Transfers from loans to other real estate owned and repossessed assets during the periods presented, are summarized as follows:

	Six Months Ended June 30,
	2015		2014
	(Dollars in thousands)
Other real estate owned	$	2,522	$	525
Repossessed assets		424		722
Total	$	2,946	$	1,247

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Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

The following is a summary of intangible assets:

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in thousands)
As of June 30, 2015
Core deposit intangibles	$	13,198	$	(6,720	)	$	6,478
Customer relationship intangibles		5,699		(2,880	)		2,819
Mortgage servicing intangibles		595		(211	)		384
Total	$	19,492	$	(9,811	)	$	9,681
As of December 31, 2014
Core deposit intangibles	$	13,198	$	(6,013	)	$	7,185
Customer relationship intangibles		5,699		(2,699	)		3,000
Mortgage servicing intangibles		643		(193	)		450
Total	$	19,540	$	(8,905	)	$	10,635

Summary of Goodwill by Business Segment

The following is a summary of goodwill by business segment:

						Other		Executive,
	Metropolitan		Community			Financial		Operations
	Banks		Banks			Services		& Support		Consolidated
	(Dollars in thousands)
Balance at December 31, 2014	$	8,078	$	30,970		$	5,464	$	450	$	44,962
Impairment		—		(368	)		—		—		(368	)
Balance at June 30, 2015	$	8,078	$	30,602		$	5,464	$	450	$	44,594

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Subsequent Event

6 Months Ended

Jun. 30, 2015

Subsequent Events [Abstract]

Subsequent Event

(12) SUBSEQUENT EVENT

On July 14, 2015, the Company announced it had entered into an agreement to acquire CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma.  Bank of Commerce has approximately $202 million in total assets, $139 million in loans, $180 million in deposits, and $21 million in equity capital. The transaction is scheduled to be completed during October 2015, and is subject to regulatory approval. The bank will operate under its present name until it is merged into BancFirst, which is expected to be during the fourth quarter of 2015. The acquisition will not have a material effect on the Company’s consolidated financial statements.

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Net Income Per Common Share

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Net Income Per Common Share

(8) NET INCOME PER COMMON SHARE

Basic and diluted net income per common share are calculated as follows:

	Income (Numerator)		Shares (Denominator)		Per Share Amount
	(Dollars in thousands, except per share data)
Three Months Ended June 30, 2015
Basic
Income available to common stockholders	$	18,553		15,536,325	$	1.19
Effect of stock options		—		328,599
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	18,553		15,864,924	$	1.17
Three Months Ended June 30, 2014
Basic
Income available to common stockholders	$	14,688		15,468,511	$	0.94
Effect of stock options		—		363,669
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	14,688		15,832,180	$	0.92
Six Months Ended June 30, 2015
Basic
Income available to common stockholders	$	34,812		15,521,916	$	2.24
Effect of stock options		—		330,616
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	34,812		15,852,532	$	2.20
Six Months Ended June 30, 2014
Basic
Income available to common stockholders	$	29,345		15,405,847	$	1.90
Effect of stock options		—		353,942
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	29,345		15,759,789	$	1.86

The following table shows the number and average exercise price of options that were excluded from the computation of diluted net income per common share for each period because the options’ exercise prices were greater than the average market price of the common shares:

	Shares		Average ExercisePrice
Three Months Ended June 30, 2015		168,065	$	58.14
Three Months Ended June 30, 2014		59,286		54.89
Six Months Ended June 30, 2015		148,475	$	57.94
Six Months Ended June 30, 2014		67,155		54.15

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Stockholders' Equity - Additional Information (Detail) - Jun. 30, 2015 - USD ($)	Total
2015 [Member]
Stockholders Equity [Line Items]
Implementation of the deductions and other adjustments to CET1	4 years
Implementation of the deductions and other adjustments to CET1, Percentage	40.00%
After 2015 [Member]
Stockholders Equity [Line Items]
Implementation of the deductions and other adjustments to CET1, Additional Percentage	20.00%
2016 [Member]
Stockholders Equity [Line Items]
Implementation of the capital conservation buffer, Percentage	0.625%
Capital conservation buffer implementation phase-out period	4 years
2019 [Member]
Stockholders Equity [Line Items]
Capital Conservation Buffer Maximum Level	2.50%
Maximum [Member]
Stockholders Equity [Line Items]
Quantitative limit for trust preferred securities to be included in tier 1 capital	$ 15,000,000,000

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

(6) STOCK-BASED COMPENSATION

The Company adopted a nonqualified incentive stock option plan (the “BancFirst ISOP”) in May 1986. The Company amended the BancFirst ISOP to increase the number of shares to be issued under the plan to 3,000,000 shares in May 2013. At June 30, 2015, 39,485 shares were available for future grants. The BancFirst ISOP will terminate on December 31, 2019. The options are exercisable beginning four years from the date of grant at the rate of 25% per year for four years. Options expire at the end of fifteen years from the date of grant. Options outstanding as of June 30, 2015 will become exercisable through the year 2022. The option price must be no less than 100% of the fair value of the stock relating to such option at the date of grant.

In June 1999, the Company adopted the BancFirst Corporation Non-Employee Directors’ Stock Option Plan (the “BancFirst Directors’ Stock Option Plan”). Each non-employee director is granted an option for 10,000 shares. The Company amended the BancFirst Directors’ Stock Option Plan to increase the number of shares to be issued under the plan to 230,000 shares in May 2014. At June 30, 2015, 20,000 shares were available for future grants. The options are exercisable beginning one year from the date of grant at the rate of 25% per year for four years, and expire at the end of fifteen years from the date of grant. Options outstanding as of June 30, 2015 will become exercisable through the year 2018. The option price must be no less than 100% of the fair value of the stock relating to such option at the date of grant.

The Company currently uses newly issued stock to satisfy stock-based exercises, but reserves the right to use treasury stock purchased under the Company’s Stock Repurchase Program (the “SRP”) in the future.

The following table is a summary of the activity under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:

						Wgtd. Avg.
				Wgtd. Avg.		Remaining	Aggregate
				Exercise		Contractual	Intrinsic
	Options			Price		Term	Value
	(Dollars in thousands, except per share data)
Six Months Ended June 30, 2015
Outstanding at December 31, 2014		1,029,657		$	36.55
Options granted		98,000			60.02
Options exercised		(57,250	)		23.64
Options canceled, forfeited, or expired		(22,500	)		37.14
Outstanding at June 30, 2015		1,047,907			39.44	8.88 Yr	$	27,260
Exercisable at June 30, 2015		475,682			31.54	5.21 Yr	$	16,131

The following table has additional information regarding options granted and options exercised under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Weighted average grant-date fair value per share of options granted	$	12.07	$	12.33	$	11.51	$	12.33
Total intrinsic value of options exercised		1,892		1,301		2,129		2,046
Cash received from options exercised		1,109		776		1,353		1,642
Tax benefit realized from options exercised		731		503		823		791

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model and is based on certain assumptions including risk-free rate of return, dividend yield, stock price volatility and the expected term.  The fair value of each option is expensed over its vesting period.

The following table is a summary of the Company’s recorded stock-based compensation expense:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Stock-based compensation expense	$	290	$	429	$	754	$	776
Tax benefit		112		166		292		300
Stock-based compensation expense, net of tax	$	178	$	263	$	462	$	476

The Company will continue to amortize the remaining fair value of stock options over the remaining vesting period of approximately seven years.  The following table shows the remaining fair value of stock options:

	June 30, 2015
	(Dollars in thousands)
Fair value of stock options	$	4,459

The following table shows the assumptions used for computing stock-based compensation expense under the fair value method during the periods presented:

	Six Months Ended June 30,
	2015	2014
Risk-free interest rate	1.83 to 2.26%	2.54%
Dividend yield	2.00%	2.00%
Stock price volatility	18.23 to 19.22%	18.98%
Expected term	10 Yrs	10 Yrs

The risk-free interest rate is determined by reference to the spot zero-coupon rate for the U.S. Treasury security with a maturity similar to the expected term of the options.  The dividend yield is the expected yield for the expected term.  The stock price volatility is estimated from the recent historical volatility of the Company’s stock.  The expected term is estimated from the historical option exercise experience.

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Stockholders' Equity

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Stockholders' Equity

(7) STOCKHOLDERS’ EQUITY

In November 1999, the Company adopted a Stock Repurchase Program (the “SRP”). The SRP may be used as a means to increase earnings per share and return on equity, to purchase treasury stock for the exercise of stock options or for distributions under the Deferred Stock Compensation Plan, to provide liquidity for optionees to dispose of stock from exercises of their stock options and to provide liquidity for stockholders wishing to sell their stock. All shares repurchased under the SRP have been retired and not held as treasury stock. The timing, price and amount of stock repurchases under the SRP may be determined by management and approved by the Company’s Executive Committee.

The following table is a summary of the shares under the program:

	Six Months Ended June 30,
	2015		2014
Number of shares repurchased		—		—
Average price of shares repurchased		—		—
Shares remaining to be repurchased		194,723		194,723

The Company and BancFirst are subject to risk-based capital guidelines issued by the Board of Governors of the Federal Reserve System and the Federal Deposit Insurance Corporation (“FDIC”). These guidelines are used to evaluate capital adequacy and involve both quantitative and qualitative evaluations of the Company’s and BancFirst’s assets, liabilities and certain off-balance-sheet items calculated under regulatory practices. Failure to meet the minimum capital requirements can initiate certain mandatory or discretionary actions by the regulatory agencies that could have a direct material effect on the Company’s financial statements. Management believes that as of June 30, 2015, the Company and BancFirst met all capital adequacy requirements to which they are subject.  The actual and required capital amounts and ratios are shown in the following table:

						Required					To Be Well
						For Capital					Capitalized Under
						Adequacy					Prompt Corrective
	Actual					Purposes					Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of June 30, 2015:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	652,100		15.61	%	$	334,229		8.00	%	N/A		N/A
BancFirst		598,091		14.40	%		332,259		8.00	%	$	415,324		10.00	%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	583,479		13.97	%	$	188,004		4.50	%	N/A		N/A
BancFirst		535,470		12.89	%		186,896		4.50	%	$	269,960		6.50	%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	609,479		14.59	%	$	250,672		6.00	%	N/A		N/A
BancFirst		555,470		13.37	%		249,194		6.00	%	$	332,259		8.00	%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	609,479		9.45	%	$	259,959		4.00	%	N/A		N/A
BancFirst		555,470		8.62	%		259,366		4.00	%	$	324,207		5.00	%

As of June 30, 2015, the most recent notification from the Federal Reserve Bank of Kansas City and the FDIC categorized BancFirst as “well capitalized” under the regulatory framework from prompt corrective action. The Company’s trust preferred securities have continued to be included in Tier 1 capital as the Company’s total assets do not exceed $15 billion. There are no conditions or events since the most recent notifications of BancFirst’s capital category that management believes would materially change its category under capital requirements existing as of the report date.

Basel III Capital Rules

The Basel III Capital Rules were effective for the Company and BancFirst on January 1, 2015 (subject to a 4-year phase-in period).

The Basel III Capital Rules, among other things, (i) introduce a new capital measure called “Common Equity Tier 1” (“CET1”), (ii) specify that Tier 1 capital consist of CET1 and “Additional Tier 1 capital” instruments meeting specified requirements, (iii) define CET1 narrowly by requiring that most deductions/adjustments to regulatory capital measures be made to CET1 and not to the other components of capital and (iv) expand the scope of the deductions/adjustments as compared to existing regulations.

Implementation of the deductions and other adjustments to CET1 began on January 1, 2015 and will be phased-in over a 4-year period (beginning at 40% on January 1, 2015 and an additional 20% per year thereafter). Under the new rule, in order to avoid limitations on capital distributions, including dividend payments and certain discretionary bonus payments to executive officers, a banking organization must hold a capital conservation buffer composed of CET1 capital above its minimum risk-based capital requirements. The implementation of the capital conservation buffer will begin on January 1, 2016 at the 0.625% level and be phased in over a four-year period (increasing by that amount on each subsequent January 1, until it reaches 2.5% on January 1, 2019).

Management believes that, as of June 30, 2015, the Company and BancFirst would meet all capital adequacy requirements under the Basel III Capital Rules on a fully phased-in basis as if such requirements were currently in effect.

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Fair Value Measurements

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

(9) FAIR VALUE MEASUREMENTS

Accounting standards define fair value as the price that would be received to sell an asset or the price paid to transfer a liability in the principal or most advantageous market available to the entity in an orderly transaction between market participants on the measurement date.

FASB ASC Topic 820 establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.  The fair value hierarchy is as follows:

· Level 1 Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

· Level 2 Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset and liability, either directly or indirectly, for substantially the full term of the financial instrument.

· Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. This category includes certain impaired loans, foreclosed assets, other real estate, goodwill and other intangible assets.

Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis

A description of the valuation methodologies and key inputs used to measure financial assets and financial liabilities at fair value on a recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. These valuation methodologies were applied to the following categories of the Company’s financial assets and financial liabilities.

Securities Available for Sale

Securities classified as available for sale are reported at fair value. U.S. Treasuries are valued using Level 1 inputs. Other securities available for sale including U.S. federal agencies, registered mortgage backed securities and state and political subdivisions are valued using prices from an independent pricing service utilizing Level 2 data. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. The Company also invests in private label mortgage backed securities and equity securities classified as available for sale for which observable information is not readily available. These securities are reported at fair value utilizing Level 3 inputs. For these securities, management determines the fair value based on replacement cost, the income approach or information provided by outside consultants or lead investors.

The Company reviews the prices for Level 1 and Level 2 securities supplied by the independent pricing service for reasonableness and to ensure such prices are aligned with traditional pricing matrices. In general, the Company does not purchase investment portfolio securities that are esoteric or that have complicated structures. The Company’s entire portfolio consists of traditional investments including U.S. Treasury obligations, federal agency mortgage pass-through securities, general obligation municipal bonds and a small amount of municipal revenue bonds. Pricing for such instruments is fairly generic and is easily obtained. For in-state bond issues that have relatively low issue sizes and liquidity, the Company utilizes the same parameters for pricing mentioned in the preceding paragraph adjusted for the specific issue. From time to time, the Company will validate, on a sample basis, prices supplied by the independent pricing service by comparison to prices obtained from third party sources.

Derivatives

Derivatives are reported at fair value utilizing Level 2 inputs.  The Company obtains dealer and market quotations to value its oil and gas swaps and options.  The Company utilizes dealer quotes and observable market data inputs to substantiate internal valuation models.

Loans Held For Sale

The Company originates mortgage loans to be sold.  At the time of origination, the acquiring bank has already been determined and the terms of the loan, including interest rate, have already been set by the acquiring bank, allowing the Company to originate the loan at fair value.  Mortgage loans are generally sold within 30 days of origination.  Loans held for sale are valued using Level 2 inputs.  Gains or losses recognized upon the sale of the loans are determined on a specific identification basis.

Mortgage Servicing Intangibles

The Company acquired mortgage servicing intangibles with the acquisition of 1^st Bank Oklahoma on July 12, 2011. Mortgage Servicing Intangibles are amortized based on current prepayment assumptions and are adjusted to fair value semi-annually, if impaired. Fair value is estimated based on the present value of future cash flows over several interest rate scenarios, which are then discounted at risk-adjusted rates. The Company considers portfolio characteristics, contractually specified servicing fees, prepayment assumptions, delinquency rates, late charges, other ancillary revenue, costs to service and other economic factors. When available, fair value estimates and assumptions are compared to observable market data and the recent market activity and actual portfolio experience.

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of the periods presented, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Fair Value
	(Dollars in thousands)
June 30, 2015
Securities available for sale:
U.S. Treasury	$	280,985	$	—	$	—	$	280,985
U.S. federal agencies		—		166,117		—		166,117
Mortgage-backed securities		—		8,313		15,457		23,770
States and political subdivisions		—		48,977		—		48,977
Other securities		—		3,455		6,092		9,547
Derivative assets		—		2,903		—		2,903
Derivative liabilities		—		1,602		—		1,602
Loans held for sale		—		13,587		—		13,587
Mortgage servicing intangibles		—		—		384		384
December 31, 2014
Securities available for sale:
U.S. Treasury	$	248,993	$	—	$	—	$	248,993
U.S. federal agencies		—		172,449		—		172,449
Mortgage-backed securities		—		9,425		17,032		26,457
States and political subdivisions		—		53,373		—		53,373
Other securities		—		3,491		11,427		14,918
Derivative assets		—		6,124		—		6,124
Derivative liabilities		—		4,756		—		4,756
Loans held for sale		—		9,433		—		9,433
Mortgage servicing intangibles		—		—		450		450

The changes in Level 3 assets measured at estimated fair value on a recurring basis during the periods presented were as follows:

	Six Months Ended June 30
	2015			2014
	(Dollars in thousands)
Balance at the beginning of the year	$	28,909		$	32,002
Purchases, issuances and settlements		(1,409	)		(2,287	)
Sales		(8,593	)		(499	)
Gains included in earnings		7,055			382
Total unrealized losses		(4,029	)		732
Balance at the end of the period	$	21,933		$	30,330

The Company’s policy is to recognize transfers in and transfers out of Levels 1, 2 and 3 as of the end of the reporting period. During the six months ended June 30, 2015 and 2014, the Company did not transfer any securities between levels in the fair value hierarchy.

Financial Assets and Financial Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). These financial assets and financial liabilities are reported at fair value utilizing Level 3 inputs.

Impaired loans are reported at the fair value of the underlying collateral if repayment is dependent on liquidation of the collateral. In no case does the fair value of an impaired loan exceed the fair value of the underlying collateral. The impaired loans are adjusted to fair value through a specific allocation of the allowance for loan losses or a direct charge-down of the loan.

Foreclosed assets, upon initial recognition, are measured and adjusted to fair value through a charge-off to the allowance for possible loan losses based upon the fair value of the foreclosed asset.

Other real estate owned is revalued at fair value subsequent to initial recognition, with any losses recognized in net expense from other real estate owned.

The following table summarizes assets measured at fair value on a nonrecurring basis and the related losses recognized during the period:

	Total Fair Value            Level 3		Losses
	(Dollars in thousands)
As of and for the Year-to-date Period Ended June 30, 2015
Impaired loans (less specific allowance)	$	43,504	$	—
Foreclosed assets		164		—
Other real estate owned		7,357		27
As of and for the Year-to-date Period Ended December 31, 2014
Impaired loans (less specific allowance)	$	33,797	$	—
Foreclosed assets		220		—
Other real estate owned		7,859		730

Estimated Fair Value of Financial Instruments

The Company is required under current authoritative accounting guidance to disclose the estimated fair value of their financial instruments that are not recorded at fair value. For the Company, as for most financial institutions, substantially all of its assets and liabilities are considered financial instruments. A financial instrument is defined as cash, evidence of an ownership interest in an entity or a contract that creates a contractual obligation or right to deliver or receive cash or another financial instrument from a second entity. The following methods and assumptions were used to estimate the fair value of each class of financial instruments:

Cash and Cash Equivalents Include: Cash and Due from Banks; Federal Funds Sold and Interest-Bearing Deposits

The carrying amount of these short-term instruments is a reasonable estimate of fair value.

Securities Held for Investment

For securities held for investment, which are generally traded in secondary markets, fair values are based on quoted market prices or dealer quotes, if available. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities making adjustments for credit or liquidity if applicable.

Loans

For certain homogeneous categories of loans, such as some residential mortgages, fair values are estimated using the quoted market prices for securities backed by similar loans, adjusted for differences in loan characteristics. The fair values of other types of loans are estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.

Deposits

The fair values of transaction and savings accounts are the amounts payable on demand at the reporting date. The fair values of fixed-maturity certificates of deposit are estimated using the rates currently offered for deposits of similar remaining maturities.

Short-term Borrowings

The amounts payable on these short-term instruments are reasonable estimates of fair value.

Long-term Borrowings

The fair values of fixed-rate long-term borrowings are estimated using the rates that would be charged for borrowings of similar remaining maturities.

Junior Subordinated Debentures

The fair values of junior subordinated debentures are estimated using the rates that would be charged for junior subordinated debentures of similar remaining maturities.

Loan Commitments and Letters of Credit

The fair values of commitments are estimated using the fees currently charged to enter into similar agreements, taking into account the terms of the agreements. The fair values of letters of credit are based on fees currently charged for similar agreements.

The estimated fair values of the Company’s financial instruments that are reported at amortized cost in the Company’s consolidated balance sheets, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value, are as follows:

	June 30,				December 31,
	2015				2014
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,817,228	$	1,817,228	$	1,913,895	$	1,913,895
Securities held for investment		7,923		7,991		8,593		8,671
Level 3 inputs:
Loans, net of allowance for loan losses		3,815,711		3,853,964		3,810,509		3,847,791
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,808,221		5,131,120		5,904,704		5,945,502
Short-term borrowings		2,075		2,075		3,982		3,982
Junior subordinated debentures		26,804		29,806		26,804		31,200
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,666				1,640
Letters of credit				485				478

Non-financial Assets and Non-financial Liabilities Measured at Fair Value

The Company has no non-financial assets or non-financial liabilities measured at fair value on a recurring basis. Certain non-financial assets and non-financial liabilities measured at fair value on a nonrecurring basis include intangible assets (excluding mortgage service rights, which are valued semi-annually) and other non-financial long-lived assets measured at fair value and adjusted for impairment. These items are evaluated at least annually for impairment. The overall levels of non-financial assets and non-financial liabilities measured at fair value on a nonrecurring basis were not considered to be significant to the Company at June 30, 2015 or December 31, 2014.

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Fair Value Measurements - Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	$ 529,396	$ 516,190
Derivative assets	2,903	6,124
Derivative liabilities	1,602	4,756
Loans held for sale	13,587	9,433
Mortgage servicing intangibles	384	450
Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,903	6,124
Derivative liabilities	1,602	4,756
Loans held for sale	13,587	9,433
Level 3 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing intangibles	384	450
U.S. Treasuries [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	280,985	248,993
U.S. Treasuries [Member] | Level 1 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	280,985	248,993
U.S. Federal Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	166,117	172,449
U.S. Federal Agencies [Member] | Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	166,117	172,449
Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	23,770	26,457
Mortgage Backed Securities [Member] | Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	8,313	9,425
Mortgage Backed Securities [Member] | Level 3 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	15,457	17,032
States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	48,977	53,373
States and Political Subdivisions [Member] | Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	48,977	53,373
Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	9,547	14,918
Other Securities [Member] | Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	3,455	3,491
Other Securities [Member] | Level 3 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, at fair value	$ 6,092	$ 11,427

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Fair Value Measurements - Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Impaired Loans (Less Specific Allowance) [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	$ 43,504	$ 33,797
Foreclosed Assets [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	164	220
Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Losses	27	730
Other Real Estate Owned [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	$ 7,357	$ 7,859

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Fair Value Measurements - Additional Information (Detail) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Debt Instrument Fair Value Disclosure [Abstract]
Days from origination after which mortgage loan are sold	30 days
Transfer of securities between levels of fair value hierarchy	$ 0	$ 0
Amount of non-financial assets (liabilities)	0		$ 0
Non-financial assets or liabilities for which no impairment was provided	$ 0		$ 0

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Securities - Summary of Amortized Cost and Estimated Fair Values of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 525,397	$ 509,353
Gross Unrealized Gains	4,813	7,957
Gross Unrealized Losses	(814)	(1,120)
Estimated Fair Value	529,396	516,190
U.S. Treasuries [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	279,414	248,767
Gross Unrealized Gains	1,571	404
Gross Unrealized Losses		(178)
Estimated Fair Value	280,985	248,993
U.S. Federal Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	165,090	171,641
Gross Unrealized Gains	1,055	983
Gross Unrealized Losses	(28)	(175)
Estimated Fair Value	166,117	172,449
Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	23,793	26,441
Gross Unrealized Gains	526	602
Gross Unrealized Losses	(549)	(586)
Estimated Fair Value	23,770	26,457
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	47,560	51,706
Gross Unrealized Gains	1,457	1,716
Gross Unrealized Losses	(40)	(49)
Estimated Fair Value	48,977	53,373
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	9,540	10,798
Gross Unrealized Gains	204	4,252
Gross Unrealized Losses	(197)	(132)
Estimated Fair Value	$ 9,547	$ 14,918

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Intangible Assets - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Line Items]
Impairment loss	$ 368
Community Banks [Member]
Goodwill [Line Items]
Impairment loss	$ 368

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Securities (Tables)

6 Months Ended

Jun. 30, 2015

Investments Debt And Equity Securities [Abstract]

Summary of Securities Held for Investment and Securities Available for Sale

The following table summarizes securities held for investment and securities available for sale:

	June 30, 2015		December 31, 2014
	(Dollars in thousands)
Held for investment, at cost (fair value: $7,991 and $8,671, respectively)	$	7,923	$	8,593
Available for sale, at fair value		529,396		516,190
Total	$	537,319	$	524,783

Summary of Amortized Cost and Estimated Fair Values of Securities Held for Investment

The following table summarizes the amortized cost and estimated fair values of securities held for investment:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
June 30, 2015	(Dollars in thousands)
Mortgage backed securities (1)	$	406	$	26	$	—	$	432
States and political subdivisions		7,517		42		—		7,559
Total	$	7,923	$	68	$	—	$	7,991
December 31, 2014
Mortgage backed securities (1)	$	471	$	34	$	—	$	505
States and political subdivisions		8,122		44		—		8,166
Total	$	8,593	$	78	$	—	$	8,671

Summary of Amortized Cost and Estimated Fair Values of Securities Available for Sale

The following table summarizes the amortized cost and estimated fair values of securities available for sale:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
June 30, 2015	(Dollars in thousands)
U.S. treasuries	$	279,414	$	1,571	$	—		$	280,985
U.S. federal agencies		165,090		1,055		(28	)		166,117
Mortgage backed securities (1)		23,793		526		(549	)		23,770
States and political subdivisions		47,560		1,457		(40	)		48,977
Other securities (2)		9,540		204		(197	)		9,547
Total	$	525,397	$	4,813	$	(814	)	$	529,396
December 31, 2014
U.S. treasuries	$	248,767	$	404	$	(178	)	$	248,993
U.S. federal agencies		171,641		983		(175	)		172,449
Mortgage backed securities (1)		26,441		602		(586	)		26,457
States and political subdivisions		51,706		1,716		(49	)		53,373
Other securities (2)		10,798		4,252		(132	)		14,918
Total	$	509,353	$	7,957	$	(1,120	)	$	516,190

(1) Primarily consists of FHLMC, FNMA, GNMA and mortgage backed securities through U.S. agencies.

(2) Primarily consists of equity securities.

Maturity of Securities

The maturities of securities held for investment and available for sale are summarized in the following table using contractual maturities. Actual maturities may differ from contractual maturities due to obligations that are called or prepaid. For purposes of the maturity table, mortgage-backed securities, which are not due at a single maturity date, have been presented at their contractual maturity.

	June 30, 2015				December 31, 2014
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	1,308	$	1,317	$	1,451	$	1,456
After one year but within five years		6,244		6,277		6,603		6,642
After five years but within ten years		237		249		380		396
After ten years		134		148		159		177
Total	$	7,923	$	7,991	$	8,593	$	8,671
Available for Sale
Contractual maturity of debt securities:
Within one year	$	166,121	$	166,327	$	41,772	$	41,870
After one year but within five years		256,716		259,037		350,975		352,044
After five years but within ten years		15,810		16,491		21,990		22,717
After ten years		80,657		81,449		87,252		88,132
Total debt securities		519,304		523,304		501,989		504,763
Equity securities		6,093		6,092		7,364		11,427
Total	$	525,397	$	529,396	$	509,353	$	516,190

Company's Book Value of Pledged Securities

The following table is a summary of the Company’s book value of securities that were pledged as collateral for public funds on deposit, repurchase agreements and for other purposes as required or permitted by law:

	June 30, 2015		December 31, 2014
	(Dollarsin thousands)
Book value of pledged securities	$	463,877	$	522,190

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Net Income Per Common Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Basic and Diluted Net Income Per Common Share

Basic and diluted net income per common share are calculated as follows:

	Income (Numerator)		Shares (Denominator)		Per Share Amount
	(Dollars in thousands, except per share data)
Three Months Ended June 30, 2015
Basic
Income available to common stockholders	$	18,553		15,536,325	$	1.19
Effect of stock options		—		328,599
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	18,553		15,864,924	$	1.17
Three Months Ended June 30, 2014
Basic
Income available to common stockholders	$	14,688		15,468,511	$	0.94
Effect of stock options		—		363,669
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	14,688		15,832,180	$	0.92
Six Months Ended June 30, 2015
Basic
Income available to common stockholders	$	34,812		15,521,916	$	2.24
Effect of stock options		—		330,616
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	34,812		15,852,532	$	2.20
Six Months Ended June 30, 2014
Basic
Income available to common stockholders	$	29,345		15,405,847	$	1.90
Effect of stock options		—		353,942
Diluted
Income available to common stockholders plus assumed    exercises of stock options	$	29,345		15,759,789	$	1.86

Average Exercise Price of Options Excluded from Computation of Diluted Net Income Per Common Share

The following table shows the number and average exercise price of options that were excluded from the computation of diluted net income per common share for each period because the options’ exercise prices were greater than the average market price of the common shares:

	Shares		Average ExercisePrice
Three Months Ended June 30, 2015		168,065	$	58.14
Three Months Ended June 30, 2014		59,286		54.89
Six Months Ended June 30, 2015		148,475	$	57.94
Six Months Ended June 30, 2014		67,155		54.15

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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 19,492	$ 19,540
Accumulated Amortization	(9,811)	(8,905)
Net Carrying Amount	9,681	10,635
Core Deposit Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,198	13,198
Accumulated Amortization	(6,720)	(6,013)
Net Carrying Amount	6,478	7,185
Customer Relationship Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,699	5,699
Accumulated Amortization	(2,880)	(2,699)
Net Carrying Amount	2,819	3,000
Mortgage Servicing Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	595	643
Accumulated Amortization	(211)	(193)
Net Carrying Amount	$ 384	$ 450

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Loans and Allowance for Loan Losses - Summary of Amounts Included in Nonaccrual Loans Segregated by Class of Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	$ 32,177	$ 16,410
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	192	296
Non-residential Real Estate Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	4,937	5,126
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	777	681
Residential Real Estate All Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	1,479	1,796
Non-consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	18,522	1,556
Consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	220	250
Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	1,629	1,659
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	$ 4,421	$ 5,046

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Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Unrealized gains (losses) on securities, tax	$ 261	$ (618)	$ (439)	$ (1,021)
Reclassification adjustment for gains included in net income, tax	1,302	14	1,536	34
Other comprehensive gain (loss), tax	$ 1,563	$ (604)	$ 1,097	$ (987)

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Securities

6 Months Ended

Jun. 30, 2015

Investments Debt And Equity Securities [Abstract]

Securities

(3) SECURITIES

The following table summarizes securities held for investment and securities available for sale:

	June 30, 2015		December 31, 2014
	(Dollars in thousands)
Held for investment, at cost (fair value: $7,991 and $8,671, respectively)	$	7,923	$	8,593
Available for sale, at fair value		529,396		516,190
Total	$	537,319	$	524,783

The following table summarizes the amortized cost and estimated fair values of securities held for investment:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
June 30, 2015	(Dollars in thousands)
Mortgage backed securities (1)	$	406	$	26	$	—	$	432
States and political subdivisions		7,517		42		—		7,559
Total	$	7,923	$	68	$	—	$	7,991
December 31, 2014
Mortgage backed securities (1)	$	471	$	34	$	—	$	505
States and political subdivisions		8,122		44		—		8,166
Total	$	8,593	$	78	$	—	$	8,671

The following table summarizes the amortized cost and estimated fair values of securities available for sale:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
June 30, 2015	(Dollars in thousands)
U.S. treasuries	$	279,414	$	1,571	$	—		$	280,985
U.S. federal agencies		165,090		1,055		(28	)		166,117
Mortgage backed securities (1)		23,793		526		(549	)		23,770
States and political subdivisions		47,560		1,457		(40	)		48,977
Other securities (2)		9,540		204		(197	)		9,547
Total	$	525,397	$	4,813	$	(814	)	$	529,396
December 31, 2014
U.S. treasuries	$	248,767	$	404	$	(178	)	$	248,993
U.S. federal agencies		171,641		983		(175	)		172,449
Mortgage backed securities (1)		26,441		602		(586	)		26,457
States and political subdivisions		51,706		1,716		(49	)		53,373
Other securities (2)		10,798		4,252		(132	)		14,918
Total	$	509,353	$	7,957	$	(1,120	)	$	516,190

(1) Primarily consists of FHLMC, FNMA, GNMA and mortgage backed securities through U.S. agencies.

(2) Primarily consists of equity securities.

The unrealized gains decreased in 2015 primarily due to the reclassification of an unrealized gain on one investment of $3.3 million from other comprehensive income to a realized gain by Council Oak Partners, LLC, a wholly-owned subsidiary of the Company. The realized gain is reported as securities transactions within the noninterest income section of the consolidated statement of comprehensive income.

The maturities of securities held for investment and available for sale are summarized in the following table using contractual maturities. Actual maturities may differ from contractual maturities due to obligations that are called or prepaid. For purposes of the maturity table, mortgage-backed securities, which are not due at a single maturity date, have been presented at their contractual maturity.

	June 30, 2015				December 31, 2014
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	1,308	$	1,317	$	1,451	$	1,456
After one year but within five years		6,244		6,277		6,603		6,642
After five years but within ten years		237		249		380		396
After ten years		134		148		159		177
Total	$	7,923	$	7,991	$	8,593	$	8,671
Available for Sale
Contractual maturity of debt securities:
Within one year	$	166,121	$	166,327	$	41,772	$	41,870
After one year but within five years		256,716		259,037		350,975		352,044
After five years but within ten years		15,810		16,491		21,990		22,717
After ten years		80,657		81,449		87,252		88,132
Total debt securities		519,304		523,304		501,989		504,763
Equity securities		6,093		6,092		7,364		11,427
Total	$	525,397	$	529,396	$	509,353	$	516,190

The following table is a summary of the Company’s book value of securities that were pledged as collateral for public funds on deposit, repurchase agreements and for other purposes as required or permitted by law:

	June 30, 2015		December 31, 2014
	(Dollarsin thousands)
Book value of pledged securities	$	463,877	$	522,190

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Stockholders' Equity - Summary of Shares Repurchased Under Stock Purchase Program (Detail) - shares	Jun. 30, 2015	Jun. 30, 2014
Summary Of Shares Repurchased Under Stock Purchase Program [Abstract]
Shares remaining to be repurchased	194,723	194,723

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Derivative Financial Instruments - Recognized Derivative Income Included in Other Noninterest Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Gain Loss On Derivative Net [Abstract]
Derivative income	$ 37	$ 149	$ 192	$ 298

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value of Financial Assets and Liabilities Measured on Recurring Basis

The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of the periods presented, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

	Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Fair Value
	(Dollars in thousands)
June 30, 2015
Securities available for sale:
U.S. Treasury	$	280,985	$	—	$	—	$	280,985
U.S. federal agencies		—		166,117		—		166,117
Mortgage-backed securities		—		8,313		15,457		23,770
States and political subdivisions		—		48,977		—		48,977
Other securities		—		3,455		6,092		9,547
Derivative assets		—		2,903		—		2,903
Derivative liabilities		—		1,602		—		1,602
Loans held for sale		—		13,587		—		13,587
Mortgage servicing intangibles		—		—		384		384
December 31, 2014
Securities available for sale:
U.S. Treasury	$	248,993	$	—	$	—	$	248,993
U.S. federal agencies		—		172,449		—		172,449
Mortgage-backed securities		—		9,425		17,032		26,457
States and political subdivisions		—		53,373		—		53,373
Other securities		—		3,491		11,427		14,918
Derivative assets		—		6,124		—		6,124
Derivative liabilities		—		4,756		—		4,756
Loans held for sale		—		9,433		—		9,433
Mortgage servicing intangibles		—		—		450		450

Changes in Level 3 Assets Measured at Estimated Fair Value on Recurring Basis

The changes in Level 3 assets measured at estimated fair value on a recurring basis during the periods presented were as follows:

	Six Months Ended June 30
	2015			2014
	(Dollars in thousands)
Balance at the beginning of the year	$	28,909		$	32,002
Purchases, issuances and settlements		(1,409	)		(2,287	)
Sales		(8,593	)		(499	)
Gains included in earnings		7,055			382
Total unrealized losses		(4,029	)		732
Balance at the end of the period	$	21,933		$	30,330

Assets Measured at Fair Value on Nonrecurring Basis

The following table summarizes assets measured at fair value on a nonrecurring basis and the related losses recognized during the period:

	Total Fair Value            Level 3		Losses
	(Dollars in thousands)
As of and for the Year-to-date Period Ended June 30, 2015
Impaired loans (less specific allowance)	$	43,504	$	—
Foreclosed assets		164		—
Other real estate owned		7,357		27
As of and for the Year-to-date Period Ended December 31, 2014
Impaired loans (less specific allowance)	$	33,797	$	—
Foreclosed assets		220		—
Other real estate owned		7,859		730

Estimated Fair Values of Financial Instruments

The estimated fair values of the Company’s financial instruments that are reported at amortized cost in the Company’s consolidated balance sheets, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value, are as follows:

	June 30,				December 31,
	2015				2014
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,817,228	$	1,817,228	$	1,913,895	$	1,913,895
Securities held for investment		7,923		7,991		8,593		8,671
Level 3 inputs:
Loans, net of allowance for loan losses		3,815,711		3,853,964		3,810,509		3,847,791
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,808,221		5,131,120		5,904,704		5,945,502
Short-term borrowings		2,075		2,075		3,982		3,982
Junior subordinated debentures		26,804		29,806		26,804		31,200
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,666				1,640
Letters of credit				485				478

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Subsequent Event - Additional Information (Detail) - Subsequent Event [Member] - Bank of Commerce $ in Millions	Jul. 14, 2015 USD ($)
Subsequent Event [Line Items]
Assets and liabilities purchased	$ 202
Loans	139
Deposits	180
Equity capital	$ 21

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Label	Element	Value
Gain Loss On Sales Of Loans Net	us-gaap_GainLossOnSalesOfLoansNet	$ 467
Gain Loss On Sales Of Loans Net	us-gaap_GainLossOnSalesOfLoansNet	549
Net Income Loss	us-gaap_NetIncomeLoss	14,688
Net Income Loss	us-gaap_NetIncomeLoss	18,553
Gain Loss On Sale Of Securities Net	us-gaap_GainLossOnSaleOfSecuritiesNet	5,392
Gain Loss On Sale Of Securities Net	us-gaap_GainLossOnSaleOfSecuritiesNet	$ 85

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Loans and Allowance for Loan Losses - Schedule of Loans Outstanding by Category (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 3,858,332	$ 3,851,398
Percent	100.00%	100.00%
Taxable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 17,884	$ 20,431
Percent	0.46%	0.53%
Tax-exempt [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 27,687	$ 20,952
Percent	0.72%	0.54%
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 741,595	$ 745,106
Percent	19.22%	19.35%
Oil & Gas Production And Equipment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 88,488	$ 104,940
Percent	2.29%	2.72%
Agriculture [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 117,729	$ 132,830
Percent	3.05%	3.45%
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 363,067	$ 356,621
Percent	9.41%	9.26%
Farmland [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 148,500	$ 149,507
Percent	3.85%	3.88%
One to Four Family Residences [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 785,170	$ 766,362
Percent	20.35%	19.90%
Multifamily Residential Properties [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 64,366	$ 66,766
Percent	1.67%	1.73%
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 1,200,331	$ 1,191,477
Percent	31.11%	30.94%
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 270,172	$ 267,179
Percent	7.00%	6.94%
Other (Not Classified Above) [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 33,343	$ 29,227
Percent	0.87%	0.76%

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Description of Business and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited interim consolidated financial statements include the accounts of BancFirst Corporation, Council Oak Partners, LLC, BancFirst Insurance Services, Inc. and BancFirst and its subsidiaries. The principal operating subsidiaries of BancFirst are Council Oak Investment Corporation, Council Oak Real Estate, Inc. and BancFirst Agency, Inc.  All significant intercompany accounts and transactions have been eliminated. Assets held in a fiduciary or agency capacity are not assets of the Company and, accordingly, are not included in the unaudited interim consolidated financial statements.

The accompanying unaudited interim consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q. The information contained in the financial statements and footnotes included in BancFirst Corporation’s Annual Report on Form 10-K for the year ended December 31, 2014, should be referred to in connection with these unaudited interim consolidated financial statements. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

The unaudited interim consolidated financial statements contained herein reflect all adjustments which are, in the opinion of management, necessary to provide a fair statement of the financial position and results of operations of the Company for the interim periods presented. All such adjustments are of a normal and recurring nature. There have been no significant changes in the accounting policies of the Company since December 31, 2014, the date of the most recent annual report.

Reclassifications

Reclassifications

Certain items in prior financial statements have been reclassified to conform to the current presentation. Such reclassifications had no effect on previously reported cash flows, stockholders’ equity or comprehensive income.

Use of Estimates in the Preparation of Financial Statements

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States inherently involves the use of estimates and assumptions that affect the amounts reported in the financial statements and the related disclosures. These estimates relate principally to the determination of the allowance for loan losses, income taxes, the fair value of financial instruments and the valuation of intangibles. Such estimates and assumptions may change over time and actual amounts realized may differ from those reported.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In February 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-02, “Consolidation (Topic 810) – Amendments to the Consolidation Analysis.” ASU 2015-02 implements changes to both the variable interest consolidation model and the voting interest consolidation model. ASU 2015-02 (i) eliminates certain criteria that must be met when determining when fees paid to a decision maker or service provider do not represent a variable interest, (ii) amends the criteria for determining whether a limited partnership is a variable interest entity and (iii)  eliminates the presumption that a general partner controls a limited partnership in the voting model. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2015. Adoption of ASU 2015-02 is not expected to have a significant effect on the Company’s financial statements.

In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Topic 205-40).”  ASU 2014-15 provides guidance on management’s responsibility in evaluating whether there is substantial doubt about the Company’s ability to continue as a going concern and related footnote disclosures. For each reporting period, management will be required to evaluate whether there are conditions or events that raise substantial doubt about the Company’s ability to continue as a going concern within one year from the date the financial statements are issued.  The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2016. Early adoption is permitted. Adoption of ASU 2014-15 is not expected to have a significant effect on the Company’s financial statements.

In January 2014, the FASB issued Accounting Standards Update ASU No. 2014-04, “Receivables: Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure (Topic 310-40).”  ASU 2014-04 clarifies that an in-substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments were effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. Adoption of ASU 2014-04 did not have a significant effect on the Company’s financial statements.

In January 2014, the FASB issued ASU No. 2014-01, “Accounting for Investments in Affordable Housing Projects (Topic 323).”  ASU 2014-01 revises the necessary criteria that need to be met in order for an entity to account for investments in affordable housing projects net of the provision for income taxes. It also changes the method of recognition from an effective amortization approach to a proportional amortization approach. Additional disclosures were also set forth in this update. The amendments were effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments were required to be applied retrospectively to all periods presented. Early adoption was permitted and adoption of the standard was optional. Adoption of ASU 2014-01 did not have a material impact on the Company's financial statements.