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) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 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  ¨.

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  ¨.

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

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

As of October 31, 2014 there were 15,486,546 shares of the registrant’s Common Stock outstanding.

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

BANCFIRST CORPORATION

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands)

	September 30,			December 31,			September 30,
	2014			2013			2013
	(unaudited)			(see Note 1)			(unaudited)
ASSETS
Cash and due from banks	$	180,466		$	196,547		$	204,317
Interest-bearing deposits with banks		1,652,939			1,660,988			1,622,619
Federal funds sold		300			—			—
Securities (fair value: $535,665, $527,735, and $474,755, respectively)		535,586			527,627			474,640
Loans:
Total loans (net of unearned interest)		3,762,343			3,387,146			3,358,938
Allowance for loan losses		(39,467	)		(39,034	)		(38,859	)
Loans, net		3,722,876			3,348,112			3,320,079
Premises and equipment, net		121,686			117,862			118,176
Other real estate owned		6,826			8,149			8,121
Intangible assets, net		11,106			10,273			10,633
Goodwill		44,962			44,545			44,545
Accrued interest receivable and other assets		129,828			124,871			123,600
Total assets	$	6,406,575		$	6,038,974		$	5,926,730
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deposits:
Noninterest-bearing	$	2,270,071		$	2,085,753		$	2,022,388
Interest-bearing		3,470,378			3,333,766			3,287,076
Total deposits		5,740,449			5,419,519			5,309,464
Short-term borrowings		11,473			4,590			5,074
Long-term borrowings		—			6,938			8,938
Accrued interest payable and other liabilities		31,666			24,126			30,477
Junior subordinated debentures		26,804			26,804			26,804
Total liabilities		5,810,392			5,481,977			5,380,757
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: 15,449,546, 15,333,622 and 15,298,308, respectively		15,449			15,334			15,298
Capital surplus		93,866			88,803			86,967
Retained earnings		482,302			448,953			439,840
Accumulated other comprehensive income, net of income tax of $2,880, $2,103 and $2,083, respectively		4,566			3,907			3,868
Total stockholders’ equity		596,183			556,997			545,973
Total liabilities and stockholders’ equity	$	6,406,575		$	6,038,974		$	5,926,730

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

2

BANCFIRST CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

(Dollars in thousands, except per share data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
INTEREST INCOME
Loans, including fees	$	46,759		$	41,694		$	135,263		$	124,361
Securities:
Taxable		1,536			1,097			4,343			3,745
Tax-exempt		262			284			815			944
Federal funds sold		—			—			1			2
Interest-bearing deposits with banks		1,112			1,031			3,302			2,978
Total interest income		49,669			44,106			143,724			132,030
INTEREST EXPENSE
Deposits		2,658			2,849			8,180			8,778
Short-term borrowings		6			1			13			4
Long-term borrowings		—			52			25			176
Junior subordinated debentures		491			492			1,474			1,474
Total interest expense		3,155			3,394			9,692			10,432
Net interest income		46,514			40,712			134,032			121,598
Provision for loan losses		(3,115	)		(12	)		1,232			804
Net interest income after provision for loan losses		49,629			40,724			132,800			120,794
NONINTEREST INCOME
Trust revenue		2,380			2,122			6,846			6,043
Service charges on deposits		14,226			13,575			42,044			38,835
Securities transactions		284			90			819			341
Income from sales of loans		569			560			1,387			1,939
Insurance commissions		4,152			3,892			11,380			10,982
Cash management		1,770			1,620			5,058			4,669
Gain on sale of other assets		242			49			250			300
Other		1,315			1,744			4,327			4,811
Total noninterest income		24,938			23,652			72,111			67,920
NONINTEREST EXPENSE
Salaries and employee benefits		28,153			26,094			81,569			76,388
Occupancy and fixed assets expense, net		2,920			2,768			8,493			7,849
Depreciation		2,432			2,307			7,156			6,973
Amortization of intangible assets		444			424			1,310			1,291
Data processing services		1,183			1,173			3,538			3,587
Net expense from other real estate owned		173			105			317			870
Marketing and business promotion		1,429			1,668			4,806			4,631
Deposit insurance		810			750			2,456			2,235
Other		9,398			8,032			26,990			23,896
Total noninterest expense		46,942			43,321			136,635			127,720
Income before taxes		27,625			21,055			68,276			60,994
Income tax expense		8,832			6,564			20,138			20,538
Net income	$	18,793		$	14,491		$	48,138		$	40,456
NET INCOME PER COMMON SHARE
Basic	$	1.22		$	0.94		$	3.12		$	2.65
Diluted	$	1.19		$	0.93		$	3.05		$	2.61
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $210, $186, $(811) and $1,269, respectively	$	(332	)	$	(346	)	$	713		$	(2,360	)
Reclassification adjustment for gains included in net income, net of tax of $—, $6, $34 and $48, respectively		—			(11	)		(54	)		(89	)
Other comprehensive income (loss), net of tax of $210, $192, $(777) and $1,317, respectively		(332	)		(357	)		659			(2,449	)
Comprehensive income	$	18,461		$	14,134		$	48,797		$	38,007

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

3

BANCFIRST CORPORATION

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(Unaudited)

(Dollars in thousands)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
COMMON STOCK
Issued at beginning of period	$	15,399		$	15,256		$	15,334		$	15,242
Shares issued		50			63			115			122
Shares acquired and canceled		—			(21	)		—			(66	)
Issued at end of period	$	15,449		$	15,298		$	15,449		$	15,298
CAPITAL SURPLUS
Balance at beginning of period	$	91,447		$	84,360		$	88,803		$	82,401
Common stock issued		1,554			1,717			3,174			2,745
Tax effect of stock options		417			491			665			727
Stock-based compensation arrangements		448			399			1,224			1,094
Balance at end of period	$	93,866		$	86,967		$	93,866		$	86,967
RETAINED EARNINGS
Balance at beginning of period	$	468,761		$	431,120		$	448,953		$	415,607
Net income		18,793			14,491			48,138			40,456
Dividends on common stock		(5,252	)		(4,746	)		(14,789	)		(13,579	)
Common stock acquired and canceled		—			(1,025	)		—			(2,644	)
Balance at end of period	$	482,302		$	439,840		$	482,302		$	439,840
ACCUMULATED OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities:
Balance at beginning of period	$	4,898		$	4,225		$	3,907		$	6,317
Net change		(332	)		(357	)		659			(2,449	)
Balance at end of period	$	4,566		$	3,868		$	4,566		$	3,868
Total stockholders’ equity	$	596,183		$	545,973		$	596,183		$	545,973

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

4

BANCFIRST CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOW

(Unaudited)

(Dollars in thousands)

	Nine Months Ended September 30,
	2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	48,138		$	40,456
Adjustments to reconcile to net cash provided by operating activities:
Provision for loan losses		1,232			804
Depreciation and amortization		8,466			8,264
Net amortization of securities premiums and discounts		712			1,278
Realized securities gains		(819	)		(341	)
Gain on sales of loans		(1,387	)		(1,939	)
Cash receipts from the sale of loans originated for sale		114,388			165,988
Cash disbursements for loans originated for sale		(115,294	)		(157,149	)
Deferred income tax (benefit) provision		(3,107	)		1,789
Gain on other assets		(714	)		(236	)
Decrease in interest receivable		381			1,175
Decrease in interest payable		(366	)		(324	)
Amortization of stock-based compensation arrangements		1,224			1,094
Other, net		6,957			9,641
Net cash provided by operating activities		59,811			70,500
INVESTING ACTIVITIES
Net decrease in federal funds sold		4,319			700
Net cash and due from banks received from acquisitions		174,283			—
Purchases of held for investment securities		—			(902	)
Purchases of available for sale securities		(204,979	)		(78,042	)
Proceeds from maturities, calls and paydowns of held for investment securities		3,882			5,590
Proceeds from maturities, calls and paydowns of available for sale securities		197,469			156,212
Proceeds from sales of available for sale securities		2,235			341
Purchases of loans		(63,937	)		(40,847	)
Proceeds from sales of loans		21,050			87,764
Net other increase in loans		(223,189	)		(173,231	)
Purchases of premises, equipment and computer software		(8,541	)		(10,753	)
Proceeds from the sale of other assets		4,741			3,515
Net cash used in investing activities		(92,667	)		(49,653	)
FINANCING ACTIVITIES
Net increase (decrease) in demand, transaction and savings deposits		128,947			(70,008	)
Net decrease in time deposits		(109,831	)		(61,358	)
Net increase in short-term borrowings		6,883			503
Pay down of long-term borrowings		(6,938	)		(240	)
Issuance of common stock		3,954			3,594
Common stock acquired		—			(2,710	)
Cash dividends paid		(14,289	)		(8,840	)
Net cash provided by (used in) financing activities		8,726			(139,059	)
Net decrease in cash, due from banks and interest-bearing deposits		(24,130	)		(118,212	)
Cash, due from banks and interest-bearing deposits at the beginning of the period		1,857,535			1,945,148
Cash, due from banks and interest-bearing deposits at the end of the period	$	1,833,405		$	1,826,936
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	$	10,058		$	10,756
Cash paid during the period for income taxes	$	21,128		$	18,646
Noncash investing and financing activities:
Unpaid common stock dividends declared	$	5,244		$	4,739

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, 2013.

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., BancFirst Agency, Inc. and BancFirst Community Development Corporation. BancFirst Community Development Corporation was dissolved in September 2014. 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, 2013, 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, 2013, the date of the most recent annual report.

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 August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“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

6

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 are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments may be adopted using either a modified retrospective transition method or a prospective transition method. Early adoption is permitted. Adoption of ASU 2014-04 is not expected to 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 are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments are required to be applied retrospectively to all periods presented. Early adoption is permitted and adoption of the standard is optional. Adoption of ASU 2014-01 may affect income statement presentation, but otherwise is not expected to have a material impact on the Company’s financial statements.

(2) RECENT DEVELOPMENTS, INCLUDING MERGERS AND ACQUISITIONS

On January 24, 2014, BancFirst, a wholly-owned subsidiary of BancFirst Corporation, assumed all of the deposits and purchased certain assets of The Bank of Union, El Reno, Oklahoma (“The Bank of Union”). The Bank of Union was closed on that day by the Oklahoma State Banking Department.

At the time of the closing, The Bank of Union had total deposits of approximately $302 million that were assumed by BancFirst. BancFirst initially purchased approximately $121 million of loans, the majority of which were classified as performing, $4.8 million of securities, and $10,000 of other real estate. Its bid included a discount for the loans purchased. BancFirst had bid on, but was generally not awarded, loans that were classified as nonperforming. As a result of the acquisition, the Company recorded core deposit intangibles of approximately $2.2 million and goodwill of $417,000. The acquisition did not have a material effect on the Company’s consolidated financial statements.

At September 30, 2014, the balance of acquired loans from the former Bank of Union was approximately $79.9 million, the majority of which are classified as performing, and deposits in acquired branches were approximately $208.3 million.

(3) SECURITIES

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

	September 30, 2014
	(Dollars in thousands)
Held for investment, at cost (fair value: $8,845)	$	8,766
Available for sale, at fair value		526,820
Total	$	535,586

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

	September 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(Dollars in thousands)
Mortgage backed securities (1)	$	499	$	37	$	—	$	536
States and political subdivisions		8,267		42		—		8,309
Total	$	8,766	$	79	$	—	$	8,845

7

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

	September 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(Dollars in thousands)
U.S. treasury and other federal agencies	$	426,901	$	1,577	$	(149	)	$	428,329
Mortgage backed securities (1)		27,535		624		(576	)		27,583
States and political subdivisions		52,553		1,911		(43	)		54,421
Other securities (2)		12,385		4,280		(178	)		16,487
Total	$	519,374	$	8,392	$	(946	)	$	526,820

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

(2) Primarily consists of equity 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.

	September 30, 2014
	Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	1,402	$	1,409
After one year but within five years		6,693		6,726
After five years but within ten years		504		524
After ten years		167		186
Total	$	8,766	$	8,845
Available for Sale
Contractual maturity of debt securities:
Within one year	$	65,407	$	65,570
After one year but within five years		332,820		334,299
After five years but within ten years		23,306		24,098
After ten years		88,883		89,861
Total debt securities		510,416		513,828
Equity securities		8,958		12,992
Total	$	519,374	$	526,820

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:

	September 30, 2014
	(Dollars in thousands)
Book value of pledged securities	$	426,786

8

(4) LOANS AND ALLOWANCE FOR LOAN LOSSES

The following is a schedule of loans outstanding by category:

	September 30, 2014					December 31, 2013					September 30, 2013
	Amount		Percent			Amount		Percent			Amount		Percent
	(Dollars in thousands)
Commercial and industrial	$	690,945		18.36	%	$	605,672		17.88	%	$	566,670		16.87	%
Oil & gas production & equipment		106,296		2.82			96,907		2.86			139,605		4.16
Agriculture		104,037		2.77			111,323		3.29			89,258		2.66
State and political subdivisions:
Taxable		17,412		0.46			10,217		0.30			10,248		0.31
Tax-exempt		17,196		0.46			11,073		0.33			12,232		0.36
Real estate:
Construction		353,828		9.40			284,808		8.41			283,468		8.44
Farmland		149,035		3.96			132,512		3.91			133,397		3.97
One to four family residences		770,100		20.47			703,903		20.78			696,651		20.74
Multifamily residential properties		65,279		1.74			60,080		1.77			57,825		1.72
Commercial		1,190,240		31.64			1,097,484		32.40			1,100,544		32.76
Consumer		265,526		7.06			250,588		7.40			248,025		7.38
Other (not classified above)		32,449		0.86			22,579		0.67			21,015		0.63
Total loans	$	3,762,343		100.00	%	$	3,387,146		100.00	%	$	3,358,938		100.00	%
Loans held for sale (included above)	$	8,760				$	6,469				$	4,934

The Company’s loans are mostly to customers within Oklahoma and over 60% 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, 2013.

Nonperforming and Restructured Assets

The following is a summary of nonperforming and restructured assets:

	September 30,			December 31,			September 30,
	2014			2013			2013
	(Dollars in thousands)
Past due 90 days or more and still accruing	$	2,004		$	1,179		$	1,266
Nonaccrual		17,052			14,390			15,094
Restructured		17,125			17,624			18,028
Total nonperforming and restructured loans		36,181			33,193			34,388
Other real estate owned and repossessed assets		7,016			8,386			8,428
Total nonperforming and restructured assets	$	43,197		$	41,579		$	42,816
Nonperforming and restructured loans to total loans		0.96	%		0.98	%		1.02	%
Nonperforming and restructured assets to total assets		0.67	%		0.69	%		0.72	%

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 $839,000 for the nine months ended September 30, 2014 and approximately $1.3 million for the nine months ended September 30, 2013.

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.

	September 30, 2014		September 30, 2013
	(Dollars in thousands)
Non-residential real estate owner occupied	$	309	$	551
Non-residential real estate other		5,272		6,784
Residential real estate permanent mortgage		780		714
Residential real estate all other		1,589		1,865
Non-consumer non-real estate		1,430		1,280
Consumer non-real estate		237		124
Other loans		1,555		1,446
Acquired loans		5,880		2,330
Total	$	17,052	$	15,094

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

	Age Analysis of Past Due Loans
	30-89 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 September 30, 2014
Non-residential real estate owner occupied	$	651	$	258	$	909	$	488,289	$	489,198	$	60
Non-residential real estate other		4,198		825		5,023		941,181		946,204		—
Residential real estate permanent mortgage		1,903		737		2,640		298,024		300,664		414
Residential real estate all other		1,977		1,271		3,248		622,733		625,981		503
Non-consumer non-real estate		1,306		826		2,132		878,177		880,309		78
Consumer non-real estate		1,973		344		2,317		246,192		248,509		212
Other loans		1,684		674		2,358		152,187		154,545		—
Acquired loans		2,455		3,615		6,070		110,863		116,933		737
Total	$	16,147	$	8,550	$	24,697	$	3,737,646	$	3,762,343	$	2,004
As of September 30, 2013
Non-residential real estate owner occupied	$	779	$	326	$	1,105	$	458,241	$	459,346	$	308
Non-residential real estate other		6,046		1,925		7,971		869,531		877,502		51
Residential real estate permanent mortgage		2,017		492		2,509		253,708		256,217		217
Residential real estate all other		1,900		1,401		3,301		547,849		551,150		32
Non-consumer non-real estate		889		1,013		1,902		776,576		778,478		138
Consumer non-real estate		2,179		194		2,373		222,122		224,495		187
Other loans		1,531		1,275		2,806		136,060		138,866		236
Acquired loans		1,194		473		1,667		71,217		72,884		97
Total	$	16,535	$	7,099	$	23,634	$	3,335,304	$	3,358,938	$	1,266

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 September 30, 2014
Non-residential real estate owner occupied	$	525	$	456	$	15	$	543
Non-residential real estate other		23,730		21,861		1,334		22,016
Residential real estate permanent mortgage		1,432		1,223		83		1,089
Residential real estate all other		2,381		2,181		301		1,874
Non-consumer non-real estate		2,004		1,693		414		2,371
Consumer non-real estate		610		596		137		562
Other loans		1,819		1,555		170		1,626
Acquired loans		16,004		10,688		—		10,825
Total	$	48,505	$	40,253	$	2,454	$	40,906
As of September 30, 2013
Non-residential real estate owner occupied	$	993	$	924	$	34	$	700
Non-residential real estate other		25,724		24,216		2,240		25,871
Residential real estate permanent mortgage		1,263		1,068		57		1,298
Residential real estate all other		2,423		2,020		381		3,668
Non-consumer non-real estate		1,931		1,599		396		1,508
Consumer non-real estate		413		394		67		444
Other loans		1,905		1,782		300		1,911
Acquired loans		9,879		7,853		95		8,109
Total	$	44,531	$	39,856	$	3,570	$	43,509

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, 2013.

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 September 30, 2014
Non-residential real estate owner occupied	$	410,316	$	72,555	$	5,958	$	369	$	—	$	489,198
Non-residential real estate other		791,859		129,504		19,569		5,272		—		946,204
Residential real estate permanent mortgage		267,753		25,888		5,746		1,277		—		300,664
Residential real estate all other		523,365		94,332		6,196		2,088		—		625,981
Non-consumer non-real estate		736,664		111,958		30,035		1,652		—		880,309
Consumer non-real estate		234,102		12,258		1,600		547		2		248,509
Other loans		151,448		2,094		624		189		190		154,545
Acquired loans		55,356		40,631		13,754		6,723		469		116,933
Total	$	3,170,863	$	489,220	$	83,482	$	18,117	$	661	$	3,762,343
As of September 30, 2013
Non-residential real estate owner occupied	$	388,923	$	64,418	$	5,189	$	816	$	—	$	459,346
Non-residential real estate other		714,670		134,760		21,237		6,835		—		877,502
Residential real estate permanent mortgage		224,518		25,091		5,574		1,034		—		256,217
Residential real estate all other		457,649		82,827		8,721		1,953		—		551,150
Non-consumer non-real estate		681,695		91,108		4,254		1,421		—		778,478
Consumer non-real estate		210,285		11,760		2,047		403		—		224,495
Other loans		135,169		2,646		738		313		—		138,866
Acquired loans		53,364		12,707		4,207		2,606		—		72,884
Total	$	2,866,273	$	425,317	$	51,967	$	15,381	$	—	$	3,358,938

12

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, 2013.

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 September 30, 2014
Non-residential real estate owner occupied	$	5,241	$	—		$	20	$	20		$	(798	)	$	4,463
Non-residential real estate other		11,238		(29	)		45		16			(1,784	)		9,470
Residential real estate permanent mortgage		3,310		(12	)		18		6			(464	)		2,852
Residential real estate all other		6,815		(23	)		9		(14	)		(649	)		6,152
Non-consumer non-real estate		11,967		(391	)		21		(370	)		412			12,009
Consumer non-real estate		2,645		(177	)		58		(119	)		(132	)		2,394
Other loans		1,993		(93	)		8		(85	)		219			2,127
Acquired loans		88		(201	)		32		(169	)		81			—
Total	$	43,297	$	(926	)	$	211	$	(715	)	$	(3,115	)	$	39,467
Nine Months Ended September 30, 2014
Non-residential real estate owner occupied	$	4,827	$	(22	)	$	85	$	63		$	(427	)	$	4,463
Non-residential real estate other		11,026		(29	)		48		19			(1,575	)		9,470
Residential real estate permanent mortgage		2,825		(174	)		59		(115	)		142			2,852
Residential real estate all other		6,708		(116	)		23		(93	)		(463	)		6,152
Non-consumer non-real estate		8,977		(522	)		51		(471	)		3,503			12,009
Consumer non-real estate		2,556		(508	)		166		(342	)		180			2,394
Other loans		1,991		(344	)		135		(209	)		345			2,127
Acquired loans		124		(366	)		715		349			(473	)		—
Total	$	39,034	$	(2,081	)	$	1,282	$	(799	)	$	1,232		$	39,467

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 September 30, 2013
Allowance for loan losses:
Non-residential real estate owner occupied	$	4,714	$	(1	)	$	—	$	(1	)	$	144		$	4,857
Non-residential real estate other		10,866		—			2		2			404			11,272
Residential real estate permanent mortgage		2,733		(30	)		12		(18	)		7			2,722
Residential real estate all other		7,349		(23	)		3		(20	)		(722	)		6,607
Non-consumer non-real estate		8,751		(34	)		110		76			36			8,863
Consumer non-real estate		2,389		(163	)		65		(98	)		207			2,498
Other loans		1,961		(76	)		24		(52	)		36			1,945
Acquired loans		219		(3	)		3		—			(124	)		95
Total	$	38,982	$	(330	)	$	219	$	(111	)	$	(12	)	$	38,859
Nine Months Ended September 30, 2013
Non-residential real estate owner occupied	$	5,104	$	(3	)	$	16	$	13		$	(260	)	$	4,857
Non-residential real estate other		9,865		(19	)		12		(7	)		1,414			11,272
Residential real estate permanent mortgage		2,781		(126	)		27		(99	)		40			2,722
Residential real estate all other		7,034		(177	)		30		(147	)		(280	)		6,607
Non-consumer non-real estate		9,385		(139	)		159		20			(542	)		8,863
Consumer non-real estate		2,451		(458	)		202		(256	)		303			2,498
Other loans		1,885		(235	)		55		(180	)		240			1,945
Acquired loans		220		(53	)		39		(14	)		(111	)		95
Total	$	38,725	$	(1,210	)	$	540	$	(670	)	$	804		$	38,859

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
	September 30, 2014				September 30, 2013
	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)
Non-residential real estate owner occupied	$	237	$	4,226	$	228	$	4,629
Non-residential real estate other		1,452		8,018		2,529		8,743
Residential real estate permanent mortgage		374		2,478		226		2,496
Residential real estate all other		739		5,413		1,058		5,549
Non-consumer non-real estate		4,671		7,338		1,052		7,811
Consumer non-real estate		365		2,029		314		2,184
Other loans		161		1,966		246		1,699
Acquired loans		—		—		—		95
Total	$	7,999	$	31,468	$	5,653	$	33,206

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
	September 30, 2014						September 30, 2013
	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)
Non-residential real estate owner occupied	$	6,326	$	482,871	$	—	$	6,005	$	453,341	$	—
Non-residential real estate other		26,822		919,382		—		28,072		849,430		—
Residential real estate permanent mortgage		7,023		293,641		—		6,609		249,609		—
Residential real estate all other		8,284		617,697		—		10,674		540,476		—
Non-consumer non-real estate		32,977		847,332		—		5,675		772,803		—
Consumer non-real estate		2,150		246,360		—		2,448		222,045		—
Other loans		259		154,286		—		292		138,575		—
Acquired loans		—		95,987		20,946		—		66,071		6,813
Total	$	83,841	$	3,657,556	$	20,946	$	59,775	$	3,292,350	$	6,813

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:

	Nine Months Ended September 30,
	2014		2013
	(Dollars in thousands)
Other real estate owned	$	2,073	$	1,287
Repossessed assets		955		946
Total	$	3,028	$	2,233

(5) INTANGIBLE ASSETS

The following is a summary of intangible assets:

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in thousands)
As of September 30, 2014
Core deposit intangibles	$	13,198	$	(5,659	)	$	7,539
Customer relationship intangibles		5,699		(2,608	)		3,091
Mortgage servicing intangibles		659		(183	)		476
Total	$	19,556	$	(8,450	)	$	11,106

15

The following is a summary of goodwill by business segment:

	Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support		Consolidated
	(Dollars in thousands)
Balance at December 31, 2013	$	8,078	$	30,553	$	5,464	$	450	$	44,545
Acquisitions		—		417		—		—		417
Balance at September 30, 2014	$	8,078	$	30,970	$	5,464	$	450	$	44,962

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, 2013.

(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 September 30, 2014, 124,985 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 September 30, 2014 will become exercisable through the year 2021. 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 September 30, 2014, 30,000 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 September 30, 2014 will become exercisable through the year 2017. 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:

	Options			Wgtd. Avg. Exercise Price		Wgtd. Avg. Remaining Contractual Term			Aggregate Intrinsic Value
	(Dollars in thousands, except per share data)
Nine Months Ended September 30, 2014
Outstanding at December 31, 2013		1,158,317		$	34.45
Options granted		24,000			60.59
Options exercised		(114,568	)		28.34
Options canceled, forfeited, or expired		(3,125	)		36.73
Outstanding at September 30, 2014		1,064,624			35.68		8.59	Yr	$	28,616
Exercisable at September 30, 2014		493,149			28.95		4.96	Yr	$	16,573

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 September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	(Dollars in thousands, except per share data)
Weighted average grant-date fair value per share of options granted	$	12.75	$	10.63	$	12.57	$	9.05
Total intrinsic value of options exercised		1,560		1,424		3,606		2,653
Cash received from options exercised		1,605		1,775		3,247		2,976
Tax benefit realized from options exercised		604		551		1,395		1,026

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 September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
	(Dollars in thousands)
Stock-based compensation expense	$	448		$	399		$	1,224		$	1,094
Tax benefit		(173	)		(154	)		(473	)		(423	)
Stock-based compensation expense, net of tax	$	275		$	245		$	751		$	671

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:

	September 30, 2014
	(Dollars in thousands)
Fair value of stock options	$	4,341

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

	Nine Months Ended September 30,
	2014			2013
Risk-free interest rate		2.50 to 2.54	%		2.53 to 2.70	%
Dividend yield		2.00	%		2.00	%
Stock price volatility		18.62 to 18.98	%		18.35 to 18.36	%
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.

17

(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:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Number of shares repurchased		—		—		—		40,241
Average price of shares repurchased	$	—	$	—	$	—	$	40.88
Shares remaining to be repurchased		194,723		194,723		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 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 September 30, 2014, 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:

	Actual					Required For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of September 30, 2014:
Total Capital (to Risk Weighted Assets)-
BancFirst Corporation	$	601,492		14.60	%	$	329,665		8.00	%		N/A		N/A
BancFirst		559,960		13.61	%		329,121		8.00	%	$	411,401		10.00	%
Tier 1 Capital (to Risk Weighted Assets)-
BancFirst Corporation	$	562,025		13.64	%	$	164,832		4.00	%		N/A		N/A
BancFirst		520,493		12.65	%		164,560		4.00	%	$	246,841		6.00	%
Tier 1 Capital (to Total Assets)-
BancFirst Corporation	$	562,025		8.85	%	$	192,198		3.00	%		N/A		N/A
BancFirst		520,493		8.21	%		191,602		3.00	%	$	319,337		5.00	%

As of September 30, 2014, BancFirst was considered to be “well capitalized” and there are no conditions or events since the most recent notification of BancFirst’s capital category that management believes would materially change its category under capital requirements existing as of the report date. To be well capitalized under Federal bank regulatory agency definitions, a depository institution must have a Tier 1 Capital (to Risk-Weighted Assets) of at least 6%, a combined Total Capital (to Risk Weighted Assets) of at least 10%, and a Tier 1 Capital (to Total Assets) of at least 5%. The Company’s trust preferred securities have continued to be included in Tier 1 Capital as the Company’s total assets do not exceed $10 billion.

18

Basel III Capital Rules

In July 2013, the three Federal bank regulatory agencies jointly published final rules (the “Basel III Capital Rules”) establishing a new comprehensive capital framework for U.S. banking organizations. The rules implement the Basel Committee’s December 2010 framework known as “Basel III” for strengthening international capital standards as well as certain provisions of the Dodd-Frank Act. These Rules substantially revise the risk-based capital requirements applicable to bank holding companies and depository institutions, compared to the current U.S. risk-based capital rules. The Basel III Capital Rules define the components of capital and address other issues affecting the numerator in banking institutions’ regulatory capital ratios. These Rules also address risk weights and other issues affecting the denominator in banking institutions’ regulatory capital ratios and replace the existing risk-weighting approach with a more risk-sensitive approach. The Basel III Capital Rules also implement the requirements of Section 939A of the Dodd-Frank Act to remove references to credit ratings from the federal banking agencies’ rules. The Basel III Capital Rules are 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.

Under the Basel III Capital Rules, the initial minimum capital ratios as of January 1, 2015 will be as follows:

4.5% CET1 to risk-weighted assets.

6.0% Tier 1 capital to risk-weighted assets.

8.0% Total capital to risk-weighted assets.

4.0% Minimum leverage ratio

Implementation of the deductions and other adjustments to CET1 will begin 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 September 30, 2014, 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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(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 September 30, 2014
Basic
Income available to common stockholders	$	18,793		15,425,920	$	1.22
Effect of stock options		—		369,923
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	18,793		15,795,843	$	1.19
Three Months Ended September 30, 2013
Basic
Income available to common stockholders	$	14,491		15,287,535	$	0.94
Effect of stock options		—		307,346
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	14,491		15,594,881	$	0.93
Nine Months Ended September 30, 2014
Basic
Income available to common stockholders	$	48,138		15,412,611	$	3.12
Effect of stock options		—		361,686
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	48,138		15,774,297	$	3.05
Nine Months Ended September 30, 2013
Basic
Income available to common stockholders	$	40,456		15,252,967	$	2.65
Effect of stock options		—		263,387
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	40,456		15,516,354	$	2.61

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 Exercise Price
Three Months Ended September 30, 2014		76,413	$	56.23
Three Months Ended September 30, 2013		3,804		50.74
Nine Months Ended September 30, 2014		63,645		55.35
Nine Months Ended September 30, 2013		330,165		40.09

(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.

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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.

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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 quarterly. 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 September 30, 2014 and 2013, 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)
September 30, 2014
Securities available for sale:
U.S. Treasury	$	229,299	$	—	$	—	$	229,299
U.S. federal agencies		—		199,030		—		199,030
Mortgage-backed securities		—		10,551		17,032		27,583
States and political subdivisions		—		54,421		—		54,421
Other securities		—		3,495		12,992		16,487
Derivative assets		—		2,648		—		2,648
Derivative liabilities		—		1,250		—		1,250
Loans held for sale		—		8,706		—		8,706
Mortgage servicing intangibles		—		—		476		476
September 30, 2013
Securities available for sale:
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. federal agencies		—		360,904		—		360,904
Mortgage-backed securities		—		14,455		19,501		33,956
States and political subdivisions		—		53,386		—		53,386
Other securities		—		3,421		10,760		14,181
Derivative assets		—		3,049		—		3,049
Derivative liabilities		—		1,886		—		1,886
Loans held for sale		—		4,934		—		4,934
Mortgage servicing intangibles		—		—		595		595

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The changes in Level 3 assets measured at estimated fair value on a recurring basis during the nine months ended September 30, 2014 and 2013 were as follows:

	Nine Months Ended September 30,
	2014			2013
	(Dollars in thousands)
Balance at the beginning of the year	$	32,002		$	10,779
Purchases, issuances and settlements		(1,518	)		20,600
Sales		(813	)		(251	)
Gains included in earnings		673			182
Total unrealized gains (losses)		156			(454	)
Balance at the end of the period	$	30,500		$	30,856

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 nine months ended September 30, 2014 and 2013, 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 gains or losses recognized during the period:

	Level 1		Level 2		Level 3		Total Fair Value		Gains (Losses)
	(Dollars in thousands)
Nine Months Ended September 30, 2014
Impaired loans (less specific allowance)		—		—	$	37,799	$	37,799	$	—
Foreclosed assets		—		—		190		190		(191	)
Other real estate owned		—		—		6,826		6,826		(7	)
Nine Months Ended September 30, 2013
Impaired loans (less specific allowance)		—		—	$	36,286	$	36,286	$	—
Foreclosed assets		—		—		307		307		(9	)
Other real estate owned		—		—		8,121		8,121		(754	)

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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:

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	September 30,
	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,833,705	$	1 ,833,705	$	1,826,936	$	1,826,936
Securities held for investment		8,766		8,845		12,213		12,328
Level 3 inputs:
Loans, net		3,722,876		3,753,128		3,320,079		3,346,578
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,740,449		5,777,715		5,309,464		5,338,655
Short-term borrowings		11,473		11,473		5,074		5,074
Long-term borrowings		—		—		8,938		8,889
Junior subordinated debentures		26,804		29,699		26,804		28,927
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,775				1,378
Letters of credit				369				468

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 quarterly) 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 September 30, 2014 or 2013.

(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:

	September 30, 2014
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value
	(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		288		$	935
Derivative liabilities	Barrels		(288	)		(558	)
Natural Gas
Derivative assets	MMBTUs		1,718			1,713
Derivative liabilities	MMBTUs		(1,718	)		(692	)
Total Fair Value	Included in
Derivative assets	Other assets					2,648
Derivative liabilities	Other liabilities					1,250

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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 September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	(Dollars in thousands)
Derivative income	$	72	$	71	$	370	$	309

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.

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 customers:

	September 30, 2014
	(Dollars in thousands)
Credit exposure	$	226

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 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.

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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:
September 30, 2014
Net interest income (expense)	$	15,267	$	30,076	$	1,594	$	(423	)	$	—		$	46,514
Noninterest income		3,417		13,163		7,722		20,105			(19,469	)		24,938
Income before taxes		10,640		21,377		3,002		11,893			(19,287	)		27,625
September 30, 2013
Net interest income (expense)	$	14,043	$	25,613	$	1,491	$	(435	)	$	—		$	40,712
Noninterest income		3,213		12,750		6,864		15,651			(14,826	)		23,652
Income before taxes		9,173		15,229		2,619		8,688			(14,654	)		21,055
Nine Months Ended:
September 30, 2014
Net interest income (expense)	$	44,426	$	86,272	$	4,538	$	(1,204	)	$	—		$	134,032
Noninterest income		10,293		38,402		21,107		51,979			(49,670	)		72,111
Income before taxes		25,914		54,146		8,360		29,252			(49,396	)		68,276
September 30, 2013
Net interest income (expense)	$	41,997	$	76,181	$	4,786	$	(1,366	)	$	—		$	121,598
Noninterest income		9,519		36,141		19,839		44,192			(41,771	)		67,920
Income before taxes		26,218		43,818		8,014		24,425			(41,481	)		60,994
Total Assets:
September 30, 2014	$	2,189,295	$	4,107,457	$	110,778	$	647,076		$	(648,031	)	$	6,406,575
December 31, 2013		2,079,444		3,764,429		103,656		703,294			(611,849	)		6,038,974
September 30, 2013		2,031,194		3,723,491		120,476		647,336			(595,767	)		5,926,730

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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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, 2013 consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 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. Actual results may differ materially from forward-looking statements.

SUMMARY

BancFirst Corporation’s net income was $18.8 million, or $1.19 diluted earnings per share, for the third quarter of 2014, compared to net income of $14.5 million or $0.93 diluted earnings per share, for the third quarter of 2013. Net income for the first nine months of 2014 was $48.1 million, or $3.05 diluted earnings per share, compared to $40.5 million or $2.61 diluted earnings per share, for the nine months ended September 30, 2013.

Net interest income for the third quarter of 2014 was $46.5 million compared to $40.7 million for the third quarter of 2013. The net interest margin for the quarter increased to 3.13% compared to 3.01% for the same period of the previous year, despite interest rates remaining at historically low levels. Loan growth, higher securities balances, and additional interest income from an acquisition in the first quarter all contributed to the higher net interest income and margin. The provision for loan losses for the third quarter was negative $3.1 million compared to negative $12,000 a year ago. The negative provision in 2014 was due to a release of $5.31 million of loan loss reserves, partially offset by a $1.36 million increase in the specific loss reserves for existing adversely classified loans. The Company reported net charge-offs for the quarter of 0.02% of average loans, compared to net charge-offs of less than 0.01% for the same period the prior year. Noninterest income for the quarter totaled $24.9 million compared to $23.7 million for the third quarter of 2013. Noninterest expense was $46.9 million compared to $43.3 million a year ago.

The reversal of loan loss reserves was the result of management’s determination during the third quarter that the current embedded losses in the Company’s loan portfolio are now expected to be below amounts previously estimated. This calculation is heavily influenced by extraordinarily low charge-offs realized in Oklahoma’s energy-based economy over the past several years. It is unreasonable to expect the State’s economy to continue at such a high level into perpetuity, which could impact the estimate of the allowance for loan losses in future periods. Moreover, changes to accounting principles that have been proposed by the FASB could make the methodology for determining the allowance for loan losses more forward-looking, which could increase the estimate of the allowance.

At September 30, 2014, the Company’s total assets were $6.4 billion, up $367.6 million, or 6.1%, from $6.0 billion at December 31, 2013. Securities increased $8.0 million to a total of $535.6 million. Loans totaled $3.8 billion, up $375.2 million from December 31, 2013. Deposits totaled $5.7 billion, up $320.9 million. The Company’s total stockholders’ equity was $596.2 million, an increase of $39.2 million, or 7.0%, over December 31, 2013.

The Company’s asset quality remained strong. Nonperforming and restructured assets were 0.67% of total assets compared to 0.69% at December 31, 2013. The allowance to total loans was 1.05% compared to 1.15% at year end 2013.

On January 24, 2014, BancFirst, a wholly-owned subsidiary of BancFirst Corporation, assumed all of the deposits and purchased certain assets of The Bank of Union, El Reno, Oklahoma (“The Bank of Union”). The Bank of Union was closed on that day by the Oklahoma State Banking Department. At September 30, 2014, the balance

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of acquired loans was approximately $79.9 million, the majority of which are classified as performing, and deposits in the acquired branches were approximately $208.3 million. As a result of the acquisition, the Company recorded core deposit intangibles of approximately $2.2 million and goodwill of $417,000.

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.

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 September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
Income Statement Data
Net interest income	$	46,514		$	40,712		$	134,032		$	121,598
Provision for loan losses		(3,115	)		(12	)		1,232			804
Securities transactions		284			90			819			341
Total noninterest income		24,938			23,652			72,111			67,920
Salaries and employee benefits		28,153			26,094			81,569			76,388
Total noninterest expense		46,942			43,321			136,635			127,720
Net income		18,793			14,491			48,138			40,456
Per Common Share Data
Net income – basic	$	1.22		$	0.94		$	3.12		$	2.65
Net income – diluted		1.19			0.93			3.05			2.61
Cash dividends		0.34			0.31			0.96			0.89
Performance Data
Return on average assets		1.17	%		0.99	%		1.02	%		0.94	%
Return on average stockholders’ equity		12.63			10.62			11.14			10.14
Cash dividend payout ratio		27.91			33.05			30.74			33.56
Net interest spread		2.99			2.85			2.93			2.90
Net interest margin		3.13			3.01			3.07			3.06
Efficiency ratio		65.70			67.31			66.28			67.39
Net charge-offs to average loans		0.02			0.00			0.02			0.02

Net Interest Income

For the three months ended September 30, 2014, net interest income, which is the Company’s principal source of operating revenue, increased to $46.5 million compared to $40.7 million for the three months ended September 30, 2013, primarily due to a 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 increased slightly for the third quarter of 2014 compared to the third quarter of 2013, despite interest rates remaining at historically low levels. Loan growth, higher securities balances, and additional interest income from an acquisition in the first quarter all contributed to the higher net interest income and margin. If interest rates and/or loan volume do not increase, management expects its net interest margin to decrease in the fourth quarter of 2014.

29

Net interest income for the nine months ended September 30, 2014 was $134.0 million compared to $121.6 million for the nine months ended September 30, 2013. The net interest margin for the year-to-date remained relatively flat 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 losses for the third quarter of 2014 was negative $3.1 million compared to negative $12,000 a year ago. The negative provision in 2014 was due to a release of $5.31 million of loan loss reserves, partially offset by a $1.36 million increase in the specific loss reserves for existing adversely classified loans. 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.

The reversal of loan loss reserves was the result of management’s determination during the third quarter that the current embedded losses in the Company’s loan portfolio are now expected to be below amounts previously estimated. This calculation is heavily influenced by extraordinarily low charge-offs realized in Oklahoma’s energy-based economy over the past several years. As a result, the calculation is utilizing lower historical loss rates. It is unreasonable to expect the State’s economy to continue at such a high level into perpetuity, which could impact the estimate of the allowance for loan losses in future periods. Moreover, changes to accounting principles that have been proposed by the FASB could make the methodology for determining the allowance for loan losses more forward-looking, which could increase the estimate of the allowance.

The Company reported net loan charge-offs of $715,000 for the third quarter of 2014, compared to net loan charge-offs of $111,000 for the third quarter of 2013. The rate of net charge-offs to average total loans, as presented in the preceding table, continues to be at a very low level.

For the nine months ended September 30, 2014, the Company’s provision for loan losses was $1.2 million, compared to $804,000 for the nine months ended September 30, 2013. The higher provision for loan losses in 2014 was due primarily to loan growth and increases in the specific loss reserves for adversely classified loans; this was partially offset by the negative provision in the third quarter of 2014 described above. Net loan charge-offs were $799,000, compared to $670,000 for the same period of the prior year.

Noninterest Income

Noninterest income totaled $24.9 million for the third quarter of 2014 compared to $23.7 million for the third quarter of 2013. Service charges on deposits have increased due primarily to an increase in deposit accounts from our acquisition and internal growth. Fees from debit card usage totaled $5.3 million and $4.7 million during the three months ended September 30, 2014 and 2013, respectively. Trust revenue and cash management revenue also increased due to growth in the number of customers and increased activity.

Noninterest income for the nine months ended September 30, 2014 totaled $72.1 million compared to $67.9 million for the nine months ended September 30, 2013. Service charges on deposits have increased due primarily to an increase in deposit accounts from our acquisition and internal growth. Fees from debit card usage totaled $15.5 million and $13.2 million during the nine months ended September 30, 2014 and 2013, respectively. Trust revenue and cash management revenue also increased due to growth in the number of customers and increased activity.

Noninterest Expense

For the third quarter of 2014, noninterest expense totaled $46.9 million compared to $43.3 million for the third quarter of 2013. The increase in noninterest expense was partly due to the acquisition of The Bank of Union, which added $1.4 million in the quarter.

For the nine months ended September 30, 2014, noninterest expense totaled $136.6 million compared to $127.7 million for the nine months ended September 30, 2013. The increase in noninterest expense was partly due to the acquisition of The Bank of Union, which added $3.4 million for the year and the amortization of the Company’s

30

investment in historic tax credits, which added approximately $20 million, partly offset by a gain on sale of other real estate owned property of approximately $500,000. Increases in salaries and benefits, primarily due to the impact of standard annual merit increases, were partly offset by lower than anticipated health care costs of approximately $950,000.

Income Taxes

The Company’s effective tax rate on income before taxes was 32.0% for the three months ended September 30, 2014, compared to 31.1% for the three months ended September 30, 2013.

The Company’s effective tax rate on income before taxes was 29.5% for the first nine months of 2014, compared to 33.7% for the first nine months of 2013. The decrease in 2014 was due primarily to new tax credits utilized in the second quarter and the recognition of state deferred tax benefits in the first quarter.

FINANCIAL POSITION

BANCFIRST CORPORATION

SELECTED CONSOLIDATED FINANCIAL DATA

(Dollars in thousands, except per share data)

	September 30,			December 31,			September 30,
	2014			2013			2013
	(unaudited)						(unaudited)
Balance Sheet Data
Total assets	$	6,406,575		$	6,038,974		$	5,926,730
Total loans		3,762,343			3,387,146			3,358,938
Allowance for loan losses		39,467			39,034			38,859
Securities		535,586			527,627			474,640
Deposits		5,740,449			5,419,519			5,309,464
Stockholders’ equity		596,183			556,997			545,973
Book value per share		38.59			36.33			35.69
Tangible book value per share		34.96			32.75			32.08
Average loans to deposits (year-to-date)		63.02	%		62.69	%		62.77	%
Average earning assets to total assets (year-to-date)		92.67			92.65			92.65
Average stockholders’ equity to average assets (year-to-date)		9.13			9.23			9.24
Asset Quality Ratios
Nonperforming and restructured loans to total loans		0.96	%		0.98	%		1.02	%
Nonperforming and restructured assets to total assets		0.67			0.69			0.72
Allowance for loan losses to total loans		1.05			1.15			1.16
Allowance for loan losses to nonperforming and restructured loans		109.08			117.60			113.00

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 September 30, 2014 decreased $23.8 million from December 31, 2013 and increased $6.8 million from September 30, 2013. 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%.

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Securities

At September 30, 2014, total securities increased $8.0 million compared to December 31, 2013 and increased $60.9 million compared to September 30, 2013. 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 $7.4 million at September 30, 2014, compared to an unrealized gain of $6.0 million at December 31, 2013, and an unrealized gain of $6.0 million at September 30, 2013. These unrealized gains are included in the Company’s stockholders’ equity as accumulated other comprehensive income, net of income tax, in the amounts of $4.6 million, $3.9 million and $3.9 million, respectively.

Loans (Including Acquired Loans)

At September 30, 2014, total loans were up $375.2 million from December 31, 2013 and up $403.4 million from September 30, 2013, due to internal growth and loans from the Bank of Union acquisition, which had $79.9 million at September 30, 2014.

Allowance for Loan Losses/Fair Value Adjustments on Acquired Loans

At September 30, 2014, the allowance for loan losses represented 1.05% of total loans, compared to 1.15% at December 31, 2013 and 1.16% at September 30, 2013.

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 remaining credit component of the adjustment was $6.8 million at September 30, 2014, $2.3 million at December 31, 2013 and $2.3 million at September 30, 2013, while the acquired loans outstanding were $116.9 million, $65.9 million and $72.9 million, respectively. The increase during 2014 was due to the Bank of Union acquisition. The decrease in 2013 was due to improved credit quality of the loans and loan payoffs.

Nonperforming and Restructured Assets

Nonperforming and restructured assets totaled $43.2 million at September 30, 2014, compared to $41.6 million at December 31, 2013 and $42.8 million at September 30, 2013. The Company’s level of nonperforming and restructured assets has continued to be relatively low.

Nonaccrual loans totaled $17.1 million at September 30, 2014 compared to $14.4 million at the end of 2013. Nonaccrual loans increased in 2014 due primarily to the acquisition of nonperforming loans from The Bank of Union. 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 $839,000 for the nine months ended September 30, 2014 and $1.3 million for the nine months ended September 30, 2013. Only a small amount of this interest is expected to be ultimately collected.

Other real estate owned and repossessed assets declined to $7.0 million at September 30, 2014, compared to $8.4 million at December 31, 2013 and $8.4 million at September 30, 2013 due to the sale of a property.

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 $31.9 million of these loans at September 30, 2014 compared to $6.2 million at December 31, 2013 and $5.1 million at September 30, 2013. 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. The higher level of potential problem loans was due primarily to an additional $25.4 million for a single commercial loan that was experiencing financial difficulty during the year, but was not considered impaired.

32

Liquidity and Funding

Deposits

At September 30, 2014, total deposits increased $320.9 million compared to December 31, 2013 and increased $431.0 million compared to September 30, 2013. The branches acquired from the former Bank of Union had $208.3 million in deposits at September 30, 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 93.9% at September 30, 2014, compared to 93.5% at December 31, 2013 and 93.3% September 30, 2013. Noninterest-bearing deposits to total deposits were 39.5% at September 30, 2014, compared to 38.5% at December 31, 2013, and 38.1% at September 30, 2013.

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 $11.5 million at September 30, 2014, compared to $4.6 million at December 31, 2013 and $5.1 million at September 30, 2013.

Long-Term Borrowings

The Company does not have any borrowings from the Federal Home Loan Bank (“FHLB”) of Topeka, Kansas as of September 30, 2014. The Company had $6.9 million of FHLB borrowings at December 31, 2013 and $8.9 million at September 30, 2013, which matured during the first half of 2014.

There have not been 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, 2013.

Capital Resources

Stockholders’ equity totaled $596.2 million at September 30, 2014, compared to $557.0 million at December 31, 2013 and $546.0 million at September 30, 2013. In addition to net income of $48.1 million, other changes in stockholders’ equity during the nine months ended September 30, 2014 included $4.0 million related to stock option exercises, $1.2 million related to stock-based compensation and a $659,000 increase in other comprehensive income, that were offset by $14.8 million in dividends. The Company’s tier 1 capital (to total assets) and total capital (to risk weighted assets) were 8.85% and 14.60%, respectively, at September 30, 2014, well in excess of the regulatory minimums.

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, 2013.

33

BANCFIRST CORPORATION

CONSOLIDATED AVERAGE BALANCE SHEETS AND INTEREST MARGIN ANALYSIS

(Unaudited)

Taxable Equivalent Basis (Dollars in thousands)

	Three Months Ended September 30,
	2014								2013
				Interest		Average						Interest		Average
	Average			Income/		Yield/			Average			Income/		Yield/
	Balance			Expense		Rate			Balance			Expense		Rate
ASSETS
Earning assets:
Loans (1)	$	3,681,534		$	46,838		5.05	%	$	3,297,360		$	41,766		5.03	%
Securities – taxable		512,325			1,536		1.19			453,614			1,097		0.96
Securities – tax exempt		41,334			404		3.88			40,549			438		4.28
Interest bearing deposits w/ banks & FFS		1,694,709			1,112		0.26			1,601,947			1,031		0.26
Total earning assets		5,929,902			49,890		3.34			5,393,470			44,332		3.26
Nonearning assets:
Cash and due from banks		182,129								173,030
Interest receivable and other assets		316,314								302,772
Allowance for loan losses		(43,332	)							(39,284	)
Total nonearning assets		455,111								436,518
Total assets	$	6,385,013							$	5,829,988
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities:
Transaction deposits	$	729,948		$	175		0.09	%	$	629,765		$	155		0.10	%
Savings deposits		2,012,597			1,146		0.23			1,838,186			1,051		0.23
Time deposits		771,103			1,337		0.69			790,106			1,643		0.82
Short-term borrowings		12,636			6		0.18			4,921			1		0.05
Long-term borrowings		—			—		—			9,584			52		2.16
Junior subordinated debentures		26,804			491		7.27			26,804			492		7.29
Total interest bearing liabilities		3,553,088			3,155		0.35			3,299,366			3,394		0.41
Interest free funds:
Noninterest bearing deposits		2,214,894								1,965,052
Interest payable and other liabilities		26,584								24,107
Stockholders’ equity		590,447								541,463
Total interest free funds		2,831,925								2,530,622
Total liabilities and stockholders’ equity	$	6,385,013							$	5,829,988
Net interest income				$	46,735							$	40,938
Net interest spread							2.99	%							2.85	%
Effect of interest free funds							0.14	%							0.16	%
Net interest margin							3.13	%							3.01	%

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

34

BANCFIRST CORPORATION

CONSOLIDATED AVERAGE BALANCE SHEETS AND INTEREST MARGIN ANALYSIS

(Unaudited)

Taxable Equivalent Basis (Dollars in thousands)

	Nine Months Ended September 30,
	2014								2013
				Interest		Average						Interest		Average
	Average			Income/		Yield/			Average			Income/		Yield/
	Balance			Expense		Rate			Balance			Expense		Rate
ASSETS
Earning assets:
Loans (1)	$	3,589,402		$	135,481		5.05	%	$	3,251,226		$	124,589		5.12	%
Securities – taxable		509,336			4,343		1.14			497,410			3,745		1.01
Securities – tax exempt		41,137			1,253		4.07			42,769			1,452		4.54
Interest bearing deposits w/ banks & FFS		1,727,436			3,303		0.26			1,560,303			2,980		0.26
Total earning assets		5,867,311			144,380		3.29			5,351,708			132,766		3.32
Nonearning assets:
Cash and due from banks		189,030								156,353
Interest receivable and other assets		315,901								307,092
Allowance for loan losses		(41,067	)							(38,904	)
Total nonearning assets		463,864								424,541
Total assets	$	6,331,175							$	5,776,249
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest bearing liabilities:
Transaction deposits	$	766,895		$	580		0.10	%	$	654,217		$	486		0.10	%
Savings deposits		1,981,904			3,363		0.23			1,803,802			3,143		0.23
Time deposits		792,202			4,237		0.72			806,530			5,149		0.85
Short-term borrowings		9,491			13		0.18			4,554			4		0.13
Long-term borrowings		2,186			25		1.53			9,707			176		2.42
Junior subordinated debentures		26,804			1,474		7.35			26,804			1,474		7.35
Total interest bearing liabilities		3,579,482			9,692		0.36			3,305,614			10,432		0.42
Interest free funds:
Noninterest-bearing deposits		2,154,395								1,915,265
Interest payable and other liabilities		19,325								21,884
Stockholders’ equity		577,973								533,486
Total interest free funds		2,751,693								2,470,635
Total liabilities and stockholders’ equity	$	6,331,175							$	5,776,249
Net interest income				$	134,688							$	122,334
Net interest spread							2.93	%							2.90	%
Effect of interest free funds							0.14	%							0.16	%
Net interest margin							3.07	%							3.06	%

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

35

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, 2013, the date of its most recent annual report to stockholders.

Item 4. Controls and Procedures.

The Company’s Chief Executive Officer, Interim Chief Financial Officer and Chief Risk Officer and Disclosure Committee, which includes the Company’s Chief Asset Quality Officer, Chief Internal Auditor, Senior Financial Officer, 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 has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

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 September 30, 2014, 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, 2013.

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.

36

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 By-Laws (filed as Exhibit 3.2 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 1992 and incorporated herein by reference).
3.4	Resolution of the Board of Directors amending Section XXVII of the Company’s By-Laws (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K dated February 26, 2004 and incorporated herein by reference).
3.5	Amendment to Amended By-Laws, amending Article XVI, Section 1 and Article XVII, Section 1 of the Company’s By-Laws (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K dated February 28, 2008 and incorporated herein by reference).
3.6	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	Rights Agreement, dated as of February 25, 1999, between BancFirst Corporation and BancFirst, as Rights Agent, including as Exhibit A the form of Certificate of Designations of the Company setting forth the terms of the Preferred Stock, as Exhibit B the form of Right Certificate and as Exhibit C the form of Summary of Rights Agreement (filed as Exhibit 4.1 to the Company’s Form 8-K dated January 28, 2009 and incorporated herein by reference).
4.3	Amendment No. 1 to Rights Agreement, dated as of February 25, 1999, between BancFirst Corporation and BancFirst, as Rights Agent (filed as Exhibit 4.2 to the Company’s 8-K dated January 28, 2009 and incorporated herein by reference).
4.4	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).
4.5	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).
4.6	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 on Form S-3 to the Company’s registration statement, File No. 333-112488 dated February 4, 2004, and incorporated herein by reference).
4.7	Form of Certificate of 7.20% Junior Subordinated Deferrable Interest Debenture of BancFirst Corporation (filed as Exhibit 4.2 on Form S-3 to the Company’s registration statement, File No. 333-112488 dated February 4, 2004, and incorporated herein by reference).
4.8	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 December 21, 2006 effective January 1, 2007 (filed as Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the Quarter ended March 31, 2008 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).

37

Exhibit Number	Exhibit
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 (Code Section 415 Compliance) to the BancFirst Corporation Employee Stock Ownership Plan and Trust Agreement, adopted July 23, 2009. (filed as Exhibit 10.7 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2010 and incorporated herein by reference).
10.6	Amendment (Pension Protection Act, Heart Act and the Worker, Retiree, and Employer Recovery Act) to the BancFirst Corporation Employee Stock Ownership Plan and Trust Agreement, adopted December 17, 2009 (filed as Exhibit 10.8 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2010 and incorporated herein by reference).
10.7	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).
10.8	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).
10.9	Amendment to the Amended and Restated BancFirst Corporation Employee Stock Ownership Plan adopted October 27, 2011 effective October 1, 2011 (filed as Exhibit 10.10 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2011 and incorporated herein by reference).
10.10	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).
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.

38

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: November 7, 2014	/s/ David E. Rainbolt
	David E. Rainbolt
	President
	Chief Executive Officer
	(Principal Executive Officer)
Date: November 7, 2014	/s/ Randy Foraker
	Randy Foraker
	Executive Vice President
	Interim Chief Financial Officer
	and Chief Risk Officer
	(Principal Financial and Accounting Officer)

39

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 September 30, 2014 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: November 7, 2014	/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, Randy Foraker, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarterly period ended September 30, 2014 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: November 7, 2014	/s/ Randy Foraker
	Randy Foraker
	Executive Vice President,
	Interim Chief Financial Officer
	and Chief Risk Officer
	(Principal Financial and Accounting 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 September 30, 2014 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)

November 7, 2014

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 September 30, 2014 as filed with the Securities and Exchange Commission (the “Report”), I, Randy Foraker, Interim 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/ Randy Foraker

Randy Foraker

Executive Vice President,

Interim Chief Financial Officer

and Chief Risk Officer

(Principal Financial and Accounting Officer)

November 7, 2014

XML

Loans and Allowance for Loan Losses - Summary of Amounts Included in Nonaccrual Loans Segregated by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	$ 17,052	$ 14,390	$ 15,094
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	309		551
Non-residential Real Estate Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	5,272		6,784
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	780		714
Residential Real Estate All Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	1,589		1,865
Non-consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	1,430		1,280
Consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	237		124
Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	1,555		1,446
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans, Total	$ 5,880		$ 2,330

XML

Stock-Based Compensation - Assumptions Used for Computing Stock-Based Compensation Expense (Detail)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.00%	2.00%
Expected term	10 years	10 years
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.50%	2.53%
Stock price volatility	18.62%	18.35%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.54%	2.70%
Stock price volatility	18.98%	18.36%

XML

Intangible Assets - Summary of Goodwill By Business Segment (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Goodwill [Line Items]
Balance at beginning of period	$ 44,545	$ 44,545
Acquisitions	417
Balance at end of period	44,962	44,545
Metropolitan Banks [Member]
Goodwill [Line Items]
Balance at beginning of period	8,078
Acquisitions	0
Balance at end of period	8,078
Community Banks [Member]
Goodwill [Line Items]
Balance at beginning of period	30,553
Acquisitions	417
Balance at end of period	30,970
Other Financial Services [Member]
Goodwill [Line Items]
Balance at beginning of period	5,464
Acquisitions	0
Balance at end of period	5,464
Executive, Operations & Support [Member]
Goodwill [Line Items]
Balance at beginning of period	450
Acquisitions	0
Balance at end of period	$ 450

XML

Stockholders' Equity - Summary of Shares Repurchased Under Stock Purchase Program (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Summary Of Shares Repurchased Under Stock Purchase Program [Abstract]
Number of shares repurchased				40,241
Average price of shares repurchased				$ 40.88
Shares remaining to be repurchased	194,723	194,723	194,723	194,723

XML

Loans and Allowance for Loan Losses - Transfers from Loans to Other Real Estate Owned and Repossessed Assets (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable Allowance For Credit Loss Additional Information Transfer From Loans To Other Real Estate Owned And Repossessed Assets [Abstract]
Other real estate owned	$ 2,073	$ 1,287
Repossessed assets	955	946
Total	$ 3,028	$ 2,233

XML

Securities - Summary of Amortized Cost and Estimated Fair Values of Securities Available for Sale (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 519,374
Gross Unrealized Gains	8,392
Gross Unrealized Losses	(946)
Estimated Fair Value, Total	526,820
U.S. Treasury and Other Federal Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	426,901
Gross Unrealized Gains	1,577
Gross Unrealized Losses	(149)
Estimated Fair Value, Total	428,329
Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	27,535
Gross Unrealized Gains	624
Gross Unrealized Losses	(576)
Estimated Fair Value, Total	27,583	33,956
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	52,553
Gross Unrealized Gains	1,911
Gross Unrealized Losses	(43)
Estimated Fair Value, Total	54,421
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,385
Gross Unrealized Gains	4,280
Gross Unrealized Losses	(178)
Estimated Fair Value, Total	$ 16,487

XML

Stockholders' Equity - Additional Information (Detail) (USD $) In Billions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Stockholders Equity [Line Items]
Minimum Tier 1 Ratio to be well capitalized	6.00%
Minimum combined Tier 1 and Tier 2 Ratio to be well capitalized	10.00%
Minimum Leverage Ratio to be well capitalized	5.00%
Maximum [Member]
Stockholders Equity [Line Items]
Quantitative limit for trust preferred securities to be included in tier 1 capital	$ 10
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%
2015 [Member] | Minimum [Member]
Stockholders Equity [Line Items]
Minimum ratio of CET1 to risk-weighted assets	4.50%
Tier 1 capital to risk-weighted assets	6.00%
Total capital to risk weighted assets	8.00%
Minimum leverage ratio	4.00%
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%

XML

Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2014

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 September 30, 2014
Basic
Income available to common stockholders	$	18,793		15,425,920	$	1.22
Effect of stock options		—		369,923
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	18,793		15,795,843	$	1.19
Three Months Ended September 30, 2013
Basic
Income available to common stockholders	$	14,491		15,287,535	$	0.94
Effect of stock options		—		307,346
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	14,491		15,594,881	$	0.93
Nine Months Ended September 30, 2014
Basic
Income available to common stockholders	$	48,138		15,412,611	$	3.12
Effect of stock options		—		361,686
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	48,138		15,774,297	$	3.05
Nine Months Ended September 30, 2013
Basic
Income available to common stockholders	$	40,456		15,252,967	$	2.65
Effect of stock options		—		263,387
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	40,456		15,516,354	$	2.61

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 Exercise Price
Three Months Ended September 30, 2014		76,413	$	56.23
Three Months Ended September 30, 2013		3,804		50.74
Nine Months Ended September 30, 2014		63,645		55.35
Nine Months Ended September 30, 2013		330,165		40.09

XML

Stock-Based Compensation - Summary of Activity Under Stock Option Plan (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding at beginning period - Options	1,158,317
Options granted	24,000
Options exercised	(114,568)
Options canceled, forfeited or expired - Options	(3,125)
Outstanding at ending period - Options	1,064,624
Exercisable at ending period - Options	493,149
Outstanding at beginning period - Wgtd. Avg. Exercise Price	$ 34.45
Options granted - Wgtd. Avg. Exercise Price	$ 60.59
Options exercised - Wgtd. Avg. Exercise Price	$ 28.34
Options cancelled, forfeited, or expired - Wgtd. Avg. Exercise Price	$ 36.73
Outstanding at ending period - Wgtd. Avg. Exercise Price	$ 35.68
Exercisable at ending period - Wgtd. Avg. Exercise Price	$ 28.95
Outstanding at ending period - Wgtd. Avg. Remaining Contractual Term, years	8 years 7 months 2 days
Exercisable at ending period - Wgtd. Avg. Remaining Contractual Term, years	4 years 11 months 16 days
Outstanding at ending period - Aggregate Intrinsic Value	$ 28,616
Exercisable at ending period - Aggregate Intrinsic Value	$ 16,573

XML

Loans and Allowance for Loan Losses - Internal Loan Grading by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 3,762,343	$ 3,387,146	$ 3,358,938
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	489,198		459,346
Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	946,204		877,502
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	300,664		256,217
Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	625,981		551,150
Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	880,309		778,478
Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	248,509		224,495
Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	154,545		138,866
Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	116,933		72,884
Grade 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	3,170,863		2,866,273
Grade 1 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	410,316		388,923
Grade 1 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	791,859		714,670
Grade 1 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	267,753		224,518
Grade 1 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	523,365		457,649
Grade 1 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	736,664		681,695
Grade 1 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	234,102		210,285
Grade 1 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	151,448		135,169
Grade 1 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	55,356		53,364
Grade 2 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	489,220		425,317
Grade 2 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	72,555		64,418
Grade 2 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	129,504		134,760
Grade 2 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	25,888		25,091
Grade 2 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	94,332		82,827
Grade 2 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	111,958		91,108
Grade 2 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	12,258		11,760
Grade 2 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	2,094		2,646
Grade 2 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	40,631		12,707
Grade 3 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	83,482		51,967
Grade 3 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	5,958		5,189
Grade 3 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	19,569		21,237
Grade 3 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	5,746		5,574
Grade 3 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	6,196		8,721
Grade 3 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	30,035		4,254
Grade 3 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,600		2,047
Grade 3 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	624		738
Grade 3 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	13,754		4,207
Grade 4 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	18,117		15,381
Grade 4 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	369		816
Grade 4 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	5,272		6,835
Grade 4 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,277		1,034
Grade 4 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	2,088		1,953
Grade 4 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,652		1,421
Grade 4 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	547		403
Grade 4 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	189		313
Grade 4 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	6,723		2,606
Grade 5 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	661		0
Grade 5 [Member] | Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	0		0
Grade 5 [Member] | Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	0		0
Grade 5 [Member] | Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	0		0
Grade 5 [Member] | Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	0		0
Grade 5 [Member] | Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	0		0
Grade 5 [Member] | Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	2		0
Grade 5 [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	190		0
Grade 5 [Member] | Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 469		$ 0

XML

Loans and Allowance for Loan Losses - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014 SecurityLoan	Sep. 30, 2013
Receivables [Abstract]
Percentage of loans secured by real estate	60.00%
Interest income recognized	$ 839,000	$ 1,300,000
Troubled debt restructuring principal deferral	1
Interest income on impaired loans	$ 0	$ 0

XML

Stock-Based Compensation - Stock-Based Employee Compensation Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Labor and Related Expense [Abstract]
Stock-based compensation expense	$ 448	$ 399	$ 1,224	$ 1,094
Tax benefit	(173)	(154)	(473)	(423)
Stock-based compensation expense, net of tax	$ 275	$ 245	$ 751	$ 671

XML

Derivative Financial Instruments - Summary of Company's Net Credit Exposure Relating to Oil and Gas Swaps and Options with Bank Customers (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Credit exposure	$ 226

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Fair Value Measurements - Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 526,820
Derivative assets	2,648		3,049
Derivative liabilities	1,250		1,886
Loans held for sale	8,760	6,469	4,934
Mortgage servicing intangibles	476		595
U.S. Treasury [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	229,299
U.S. Federal Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	199,030		360,904
States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	54,421		53,386
Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	16,487		14,181
Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	27,583		33,956
Level 1 Inputs [Member] | U.S. Treasury [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	229,299
Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,648		3,049
Derivative liabilities	1,250		1,886
Loans held for sale	8,706		4,934
Level 2 Inputs [Member] | U.S. Federal Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	199,030		360,904
Level 2 Inputs [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	54,421		53,386
Level 2 Inputs [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,495		3,421
Level 2 Inputs [Member] | Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	10,551		14,455
Level 3 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing intangibles	476		595
Level 3 Inputs [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,992		10,760
Level 3 Inputs [Member] | Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 17,032		$ 19,501

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Intangible Assets - Summary of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 19,556
Accumulated Amortization	(8,450)
Net Carrying Amount	11,106	10,273	10,633
Core Deposit Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,198
Accumulated Amortization	(5,659)
Net Carrying Amount	7,539
Customer Relationship Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,699
Accumulated Amortization	(2,608)
Net Carrying Amount	3,091
Mortgage Servicing Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	659
Accumulated Amortization	(183)
Net Carrying Amount	$ 476

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Recent Developments, Including Mergers and Acquisitions

9 Months Ended

Sep. 30, 2014

Text Block [Abstract]

Recent Developments, Including Mergers and Acquisitions

(2) RECENT DEVELOPMENTS, INCLUDING MERGERS AND ACQUISITIONS

On January 24, 2014, BancFirst, a wholly-owned subsidiary of BancFirst Corporation, assumed all of the deposits and purchased certain assets of The Bank of Union, El Reno, Oklahoma (“The Bank of Union”). The Bank of Union was closed on that day by the Oklahoma State Banking Department.

At the time of the closing, The Bank of Union had total deposits of approximately $302 million that were assumed by BancFirst. BancFirst initially purchased approximately $121 million of loans, the majority of which were classified as performing, $4.8 million of securities, and $10,000 of other real estate. Its bid included a discount for the loans purchased. BancFirst had bid on, but was generally not awarded, loans that were classified as nonperforming. As a result of the acquisition, the Company recorded core deposit intangibles of approximately $2.2 million and goodwill of $417,000. The acquisition did not have a material effect on the Company’s consolidated financial statements.

At September 30, 2014, the balance of acquired loans from the former Bank of Union was approximately $79.9 million, the majority of which are classified as performing, and deposits in acquired branches were approximately $208.3 million.

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Fair Value Measurements - Changes in Level 3 Assets Measured at Estimated Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the year	$ 32,002	$ 10,779
Purchases, issuances and settlements	(1,518)	20,600
Sales	(813)	(251)
Gains included in earnings	673	182
Total unrealized gains (losses)	156	(454)
Balance at the end of the period	$ 30,500	$ 30,856

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Loans and Allowance for Loan Losses - Activity in All by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 43,297	$ 38,982	$ 39,034	$ 38,725
Charge- offs	(926)	(330)	(2,081)	(1,210)
Recoveries	211	219	1,282	540
Net charge- offs	(715)	(111)	(799)	(670)
Provisions charged to operations	(3,115)	(12)	1,232	804
Balance at end of period	39,467	38,859	39,467	38,859
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	5,241	4,714	4,827	5,104
Charge- offs		(1)	(22)	(3)
Recoveries	20		85	16
Net charge- offs	20	(1)	63	13
Provisions charged to operations	(798)	144	(427)	(260)
Balance at end of period	4,463	4,857	4,463	4,857
Non-residential Real Estate Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	11,238	10,866	11,026	9,865
Charge- offs	(29)		(29)	(19)
Recoveries	45	2	48	12
Net charge- offs	16	2	19	(7)
Provisions charged to operations	(1,784)	404	(1,575)	1,414
Balance at end of period	9,470	11,272	9,470	11,272
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	3,310	2,733	2,825	2,781
Charge- offs	(12)	(30)	(174)	(126)
Recoveries	18	12	59	27
Net charge- offs	6	(18)	(115)	(99)
Provisions charged to operations	(464)	7	142	40
Balance at end of period	2,852	2,722	2,852	2,722
Residential Real Estate All Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	6,815	7,349	6,708	7,034
Charge- offs	(23)	(23)	(116)	(177)
Recoveries	9	3	23	30
Net charge- offs	(14)	(20)	(93)	(147)
Provisions charged to operations	(649)	(722)	(463)	(280)
Balance at end of period	6,152	6,607	6,152	6,607
Non-consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	11,967	8,751	8,977	9,385
Charge- offs	(391)	(34)	(522)	(139)
Recoveries	21	110	51	159
Net charge- offs	(370)	76	(471)	20
Provisions charged to operations	412	36	3,503	(542)
Balance at end of period	12,009	8,863	12,009	8,863
Consumer Non-real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	2,645	2,389	2,556	2,451
Charge- offs	(177)	(163)	(508)	(458)
Recoveries	58	65	166	202
Net charge- offs	(119)	(98)	(342)	(256)
Provisions charged to operations	(132)	207	180	303
Balance at end of period	2,394	2,498	2,394	2,498
Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,993	1,961	1,991	1,885
Charge- offs	(93)	(76)	(344)	(235)
Recoveries	8	24	135	55
Net charge- offs	(85)	(52)	(209)	(180)
Provisions charged to operations	219	36	345	240
Balance at end of period	2,127	1,945	2,127	1,945
Acquired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	88	219	124	220
Charge- offs	(201)	(3)	(366)	(53)
Recoveries	32	3	715	39
Net charge- offs	(169)		349	(14)
Provisions charged to operations	81	(124)	(473)	(111)
Balance at end of period		$ 95		$ 95

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Recent Developments Including Mergers and Acquisitions - Additional Information (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014 BancFirst [Member]	Jan. 24, 2014 BancFirst [Member]	Sep. 30, 2014 BancFirst [Member] Performing [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Deposits assumed				$ 208,300,000	$ 302,000,000
Loans					121,000,000	79,900,000
Securities					4,800,000
Other real estate					10,000
Intangibles assets, net	11,106,000	10,273,000	10,633,000		2,200,000
Goodwill	$ 44,962,000	$ 44,545,000	$ 44,545,000		$ 417,000

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2014

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:
September 30, 2014
Net interest income (expense)	$	15,267	$	30,076	$	1,594	$	(423	)	$	—		$	46,514
Noninterest income		3,417		13,163		7,722		20,105			(19,469	)		24,938
Income before taxes		10,640		21,377		3,002		11,893			(19,287	)		27,625
September 30, 2013
Net interest income (expense)	$	14,043	$	25,613	$	1,491	$	(435	)	$	—		$	40,712
Noninterest income		3,213		12,750		6,864		15,651			(14,826	)		23,652
Income before taxes		9,173		15,229		2,619		8,688			(14,654	)		21,055
Nine Months Ended:
September 30, 2014
Net interest income (expense)	$	44,426	$	86,272	$	4,538	$	(1,204	)	$	—		$	134,032
Noninterest income		10,293		38,402		21,107		51,979			(49,670	)		72,111
Income before taxes		25,914		54,146		8,360		29,252			(49,396	)		68,276
September 30, 2013
Net interest income (expense)	$	41,997	$	76,181	$	4,786	$	(1,366	)	$	—		$	121,598
Noninterest income		9,519		36,141		19,839		44,192			(41,771	)		67,920
Income before taxes		26,218		43,818		8,014		24,425			(41,481	)		60,994
Total Assets:
September 30, 2014	$	2,189,295	$	4,107,457	$	110,778	$	647,076		$	(648,031	)	$	6,406,575
December 31, 2013		2,079,444		3,764,429		103,656		703,294			(611,849	)		6,038,974
September 30, 2013		2,031,194		3,723,491		120,476		647,336			(595,767	)		5,926,730

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Stockholders' Equity - Required Capital Amounts and Company's Respective Ratios (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	6.00%
Tier 1 Capital Required To Be Well Capitalized To Average assets Ratio	5.00%
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital To Risk Weighted Assets Actual Amount	$ 601,492
Total Capital To Risk Weighted Assets Actual Ratio	14.60%
Capital Required For Capital Adequacy Amount	329,665
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	8.00%
Tier 1 Risk Based Capital Amount	562,025
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	13.64%
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	164,832
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio	4.00%
Tier 1 Capital Amount	562,025
Tier 1 Capital To Average Assets Ratio	8.85%
Tier 1 Capital Required For Capital Adequacy Amount	192,198
Tier 1 Capital Required For Capital Adequacy To Average Assets Ratio	3.00%
BancFirst [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital To Risk Weighted Assets Actual Amount	559,960
Total Capital To Risk Weighted Assets Actual Ratio	13.61%
Capital Required For Capital Adequacy Amount	329,121
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	8.00%
Capital Required To Be Well Capitalized Amount	411,401
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	10.00%
Tier 1 Risk Based Capital Amount	520,493
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	12.65%
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	164,560
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio	4.00%
Tier 1 Risk Based Capital Required To Be well Capitalized Amount	246,841
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	6.00%
Tier 1 Capital Amount	520,493
Tier 1 Capital To Average Assets Ratio	8.21%
Tier 1 Capital Required For Capital Adequacy Amount	191,602
Tier 1 Capital Required For Capital Adequacy To Average Assets Ratio	3.00%
Tier 1 Capital Required To Be Well Capitalized Amount	$ 319,337
Tier 1 Capital Required To Be Well Capitalized To Average assets Ratio	5.00%

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Loans and Allowance for Loan Losses - Allowance for Loan Losses Outstanding by Impairment Methodology (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	$ 7,999	$ 5,653
Collectively evaluated for impairment	31,468	33,206
Non-residential Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	237	228
Collectively evaluated for impairment	4,226	4,629
Non-residential Real Estate Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	1,452	2,529
Collectively evaluated for impairment	8,018	8,743
Residential Real Estate Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	374	226
Collectively evaluated for impairment	2,478	2,496
Residential Real Estate All Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	739	1,058
Collectively evaluated for impairment	5,413	5,549
Non-consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	4,671	1,052
Collectively evaluated for impairment	7,338	7,811
Consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	365	314
Collectively evaluated for impairment	2,029	2,184
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	161	246
Collectively evaluated for impairment	1,966	1,699
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment
Collectively evaluated for impairment		$ 95

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Securities - Summary of Securities Held for Investment and Securities Available for Sale (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Marketable Securities [Abstract]
Held for investment, at cost (fair value: $8,845)	$ 8,766
Available for sale, at fair value	526,820
Total	$ 535,586	$ 527,627	$ 474,640

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Securities - Summary of Securities Held for Investment and Securities Available for Sale (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Marketable Securities [Abstract]
Held for investment at fair value	$ 8,845

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Description of Business and Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2014

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, 2013.

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., BancFirst Agency, Inc. and BancFirst Community Development Corporation. BancFirst Community Development Corporation was dissolved in September 2014. 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, 2013, 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, 2013, the date of the most recent annual report.

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 August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“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 are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments may be adopted using either a modified retrospective transition method or a prospective transition method. Early adoption is permitted. Adoption of ASU 2014-04 is not expected to 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 are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments are required to be applied retrospectively to all periods presented. Early adoption is permitted and adoption of the standard is optional. Adoption of ASU 2014-01 may affect income statement presentation, but otherwise is not expected to have a material impact on the Company’s financial statements.

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Securities - Summary of Amortized Cost and Estimated Fair Values of Securities Held for Investment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 8,766
Gross Unrealized Gains	79
Gross Unrealized Losses	0
Estimated Fair Value	8,845
Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	499
Gross Unrealized Gains	37
Gross Unrealized Losses	0
Estimated Fair Value	536
States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	8,267
Gross Unrealized Gains	42
Gross Unrealized Losses	0
Estimated Fair Value	$ 8,309

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Loans and Allowance for Loan Losses - Age Analysis of Past Due Loans Segregated by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	$ 16,147		$ 16,535
90 Days and Greater	8,550		7,099
Total Past Due Loans	24,697		23,634
Current Loans	3,737,646		3,335,304
Total Loans	3,762,343	3,387,146	3,358,938
Accruing Loans 90 Days or More Past Due	2,004	1,179	1,266
Non-residential Real Estate Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	651		779
90 Days and Greater	258		326
Total Past Due Loans	909		1,105
Current Loans	488,289		458,241
Total Loans	489,198		459,346
Accruing Loans 90 Days or More Past Due	60		308
Non-residential Real Estate Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	4,198		6,046
90 Days and Greater	825		1,925
Total Past Due Loans	5,023		7,971
Current Loans	941,181		869,531
Total Loans	946,204		877,502
Accruing Loans 90 Days or More Past Due			51
Residential Real Estate Permanent Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,903		2,017
90 Days and Greater	737		492
Total Past Due Loans	2,640		2,509
Current Loans	298,024		253,708
Total Loans	300,664		256,217
Accruing Loans 90 Days or More Past Due	414		217
Residential Real Estate All Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,977		1,900
90 Days and Greater	1,271		1,401
Total Past Due Loans	3,248		3,301
Current Loans	622,733		547,849
Total Loans	625,981		551,150
Accruing Loans 90 Days or More Past Due	503		32
Non-consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,306		889
90 Days and Greater	826		1,013
Total Past Due Loans	2,132		1,902
Current Loans	878,177		776,576
Total Loans	880,309		778,478
Accruing Loans 90 Days or More Past Due	78		138
Consumer Non-real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,973		2,179
90 Days and Greater	344		194
Total Past Due Loans	2,317		2,373
Current Loans	246,192		222,122
Total Loans	248,509		224,495
Accruing Loans 90 Days or More Past Due	212		187
Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,684		1,531
90 Days and Greater	674		1,275
Total Past Due Loans	2,358		2,806
Current Loans	152,187		136,060
Total Loans	154,545		138,866
Accruing Loans 90 Days or More Past Due			236
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	2,455		1,194
90 Days and Greater	3,615		473
Total Past Due Loans	6,070		1,667
Current Loans	110,863		71,217
Total Loans	116,933		72,884
Accruing Loans 90 Days or More Past Due	$ 737		$ 97

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Stock-Based Compensation - Remaining Fair Value of Stock Options (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Remaining Fair Value Of Stock Options [Abstract]
Fair value of stock options	$ 4,341

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
ASSETS
Cash and due from banks	$ 180,466	$ 196,547	$ 204,317
Interest-bearing deposits with banks	1,652,939	1,660,988	1,622,619
Federal funds sold	300
Securities (fair value: $535,665, $527,735, and $474,755, respectively)	535,586	527,627	474,640
Loans:
Total loans (net of unearned interest)	3,762,343	3,387,146	3,358,938
Allowance for loan losses	(39,467)	(39,034)	(38,859)
Loans, net	3,722,876	3,348,112	3,320,079
Premises and equipment, net	121,686	117,862	118,176
Other real estate owned	6,826	8,149	8,121
Intangible assets, net	11,106	10,273	10,633
Goodwill	44,962	44,545	44,545
Accrued interest receivable and other assets	129,828	124,871	123,600
Total assets	6,406,575	6,038,974	5,926,730
Deposits:
Noninterest-bearing	2,270,071	2,085,753	2,022,388
Interest-bearing	3,470,378	3,333,766	3,287,076
Total deposits	5,740,449	5,419,519	5,309,464
Short-term borrowings	11,473	4,590	5,074
Long-term borrowings		6,938	8,938
Accrued interest payable and other liabilities	31,666	24,126	30,477
Junior subordinated debentures	26,804	26,804	26,804
Total liabilities	5,810,392	5,481,977	5,380,757
Commitments and contingent liabilities
Stockholders' equity:
Common stock, $1.00 par, 20,000,000 shares authorized; shares issued and outstanding: 15,449,546, 15,333,622 and 15,298,308, respectively	15,449	15,334	15,298
Capital surplus	93,866	88,803	86,967
Retained earnings	482,302	448,953	439,840
Accumulated other comprehensive income, net of income tax of $2,880, $2,103 and $2,083, respectively	4,566	3,907	3,868
Total stockholders' equity	596,183	556,997	545,973
Total liabilities and stockholders' equity	6,406,575	6,038,974	5,926,730
Senior Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value	0	0	0
Cumulative Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value	$ 0	$ 0	$ 0

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Loans and Allowance for Loan Losses - Loans Outstanding by Impairment Methodology (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	$ 83,841	$ 59,775
Collectively evaluated for impairment	3,657,556	3,292,350
Loans acquired with deteriorated credit quality	20,946	6,813
Non-residential Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	6,326	6,005
Collectively evaluated for impairment	482,871	453,341
Non-residential Real Estate Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	26,822	28,072
Collectively evaluated for impairment	919,382	849,430
Residential Real Estate Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	7,023	6,609
Collectively evaluated for impairment	293,641	249,609
Residential Real Estate All Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	8,284	10,674
Collectively evaluated for impairment	617,697	540,476
Non-consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	32,977	5,675
Collectively evaluated for impairment	847,332	772,803
Consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	2,150	2,448
Collectively evaluated for impairment	246,360	222,045
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	259	292
Collectively evaluated for impairment	154,286	138,575
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment	95,987	66,071
Loans acquired with deteriorated credit quality	$ 20,946	$ 6,813

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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, 2012		$ 15,242	$ 82,401	$ 415,607	$ 6,317
Shares issued		122	2,745
Net income	40,456			40,456
Net change	(2,449)				(2,449)
Tax effect of stock options			727
Dividends on common stock				(13,579)
Stock-based compensation arrangements			1,094
Shares acquired and canceled		(66)		(2,644)
Balance at end of period at Sep. 30, 2013	545,973	15,298	86,967	439,840	3,868
Balance at beginning of period at Jun. 30, 2013		15,256	84,360	431,120	4,225
Shares issued		63	1,717
Net income	14,491			14,491
Net change	(357)				(357)
Tax effect of stock options			491
Dividends on common stock				(4,746)
Stock-based compensation arrangements			399
Shares acquired and canceled		(21)		(1,025)
Balance at end of period at Sep. 30, 2013	545,973	15,298	86,967	439,840	3,868
Balance at beginning of period at Dec. 31, 2013	556,997	15,334	88,803	448,953	3,907
Shares issued		115	3,174
Net income	48,138			48,138
Net change	659				659
Tax effect of stock options			665
Dividends on common stock				(14,789)
Stock-based compensation arrangements			1,224
Balance at end of period at Sep. 30, 2014	596,183	15,449	93,866	482,302	4,566
Balance at beginning of period at Jun. 30, 2014		15,399	91,447	468,761	4,898
Shares issued		50	1,554
Net income	18,793			18,793
Net change	(332)				(332)
Tax effect of stock options			417
Dividends on common stock				(5,252)
Stock-based compensation arrangements			448
Balance at end of period at Sep. 30, 2014	$ 596,183	$ 15,449	$ 93,866	$ 482,302	$ 4,566

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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) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Abstract]
Shares	76,413	3,804	63,645	330,165
Average Exercise Price	$ 56.23	$ 50.74	$ 55.35	$ 40.09

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Securities - Company's Book Value of Pledged Securities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Pledged Financial Instruments, Not Separately Reported, Securities, by Type of Security [Abstract]
Book value of pledged securities	$ 426,786

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Derivative Financial Instruments - Notional Amounts and Estimated Fair Values of Outstanding Derivative Positions (Detail) (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Oil [Member]	Sep. 30, 2014 Natural Gas [Member]	Sep. 30, 2014 Other Liabilities [Member]	Sep. 30, 2014 Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional Units			Barrels	MMBTUs
Derivative assets, Notional Amount			$ 288	$ 1,718
Derivative assets, Estimated Fair Value	2,648	3,049	935	1,713		2,648
Derivative liabilities, Notional Amount			(288)	(1,718)
Derivative liabilities, Estimated Fair Value	$ (1,250)	$ (1,886)	$ (558)	$ (692)	$ 1,250

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Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2014

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 September 30, 2014
Core deposit intangibles	$	13,198	$	(5,659	)	$	7,539
Customer relationship intangibles		5,699		(2,608	)		3,091
Mortgage servicing intangibles		659		(183	)		476
Total	$	19,556	$	(8,450	)	$	11,106

Summary of Goodwill by Business Segment

The following is a summary of goodwill by business segment:

	Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support		Consolidated
	(Dollars in thousands)
Balance at December 31, 2013	$	8,078	$	30,553	$	5,464	$	450	$	44,545
Acquisitions		—		417		—		—		417
Balance at September 30, 2014	$	8,078	$	30,970	$	5,464	$	450	$	44,962

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Loans and Allowance for Loan Losses - Schedule of Loans Outstanding by Category (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans held for sale (included above)	$ 8,760	$ 6,469	$ 4,934
Total loans	3,762,343	3,387,146	3,358,938
Percent	100.00%	100.00%	100.00%
Taxable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	17,412	10,217	10,248
Percent	0.46%	0.30%	0.31%
Tax-exempt [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	17,196	11,073	12,232
Percent	0.46%	0.33%	0.36%
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	690,945	605,672	566,670
Percent	18.36%	17.88%	16.87%
Agriculture [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	104,037	111,323	89,258
Percent	2.77%	3.29%	2.66%
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	353,828	284,808	283,468
Percent	9.40%	8.41%	8.44%
Farmland [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	149,035	132,512	133,397
Percent	3.96%	3.91%	3.97%
One to Four Family Residences [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	770,100	703,903	696,651
Percent	20.47%	20.78%	20.74%
Multifamily Residential Properties [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	65,279	60,080	57,825
Percent	1.74%	1.77%	1.72%
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,190,240	1,097,484	1,100,544
Percent	31.64%	32.40%	32.76%
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	265,526	250,588	248,025
Percent	7.06%	7.40%	7.38%
Other (Not Classified Above) [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	32,449	22,579	21,015
Percent	0.86%	0.67%	0.63%
Oil & Gas Production & Equipment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 106,296	$ 96,907	$ 139,605
Percent	2.82%	2.86%	4.16%

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2014

Equity [Abstract]

Summary of Shares Repurchased Under Stock Purchase Program

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Number of shares repurchased		—		—		—		40,241
Average price of shares repurchased	$	—	$	—	$	—	$	40.88
Shares remaining to be repurchased		194,723		194,723		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:

	Actual					Required For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of September 30, 2014:
Total Capital (to Risk Weighted Assets)-
BancFirst Corporation	$	601,492		14.60	%	$	329,665		8.00	%		N/A		N/A
BancFirst		559,960		13.61	%		329,121		8.00	%	$	411,401		10.00	%
Tier 1 Capital (to Risk Weighted Assets)-
BancFirst Corporation	$	562,025		13.64	%	$	164,832		4.00	%		N/A		N/A
BancFirst		520,493		12.65	%		164,560		4.00	%	$	246,841		6.00	%
Tier 1 Capital (to Total Assets)-
BancFirst Corporation	$	562,025		8.85	%	$	192,198		3.00	%		N/A		N/A
BancFirst		520,493		8.21	%		191,602		3.00	%	$	319,337		5.00	%

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Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014 Business_Unit
Segment Reporting [Abstract]
Number of principal business units	4

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Consolidated Statements of Cash Flow (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 48,138	$ 40,456
Adjustments to reconcile to net cash provided by operating activities:
Provision for loan losses	1,232	804
Depreciation and amortization	8,466	8,264
Net amortization of securities premiums and discounts	712	1,278
Realized securities gains	(819)	(341)
Gain on sales of loans	(1,387)	(1,939)
Cash receipts from the sale of loans originated for sale	114,388	165,988
Cash disbursements for loans originated for sale	(115,294)	(157,149)
Deferred income tax (benefit) provision	(3,107)	1,789
Gain on other assets	(714)	(236)
Decrease in interest receivable	381	1,175
Decrease in interest payable	(366)	(324)
Amortization of stock-based compensation arrangements	1,224	1,094
Other, net	6,957	9,641
Net cash provided by operating activities	59,811	70,500
INVESTING ACTIVITIES
Net decrease in federal funds sold	4,319	700
Net cash and due from banks received from acquisitions	174,283
Purchases of held for investment securities		(902)
Purchases of available for sale securities	(204,979)	(78,042)
Proceeds from maturities, calls and paydowns of held for investment securities	3,882	5,590
Proceeds from maturities, calls and paydowns of available for sale securities	197,469	156,212
Proceeds from sales of available for sale securities	2,235	341
Purchases of loans	(63,937)	(40,847)
Proceeds from sales of loans	21,050	87,764
Net other increase in loans	(223,189)	(173,231)
Purchases of premises, equipment and computer software	(8,541)	(10,753)
Proceeds from the sale of other assets	4,741	3,515
Net cash used in investing activities	(92,667)	(49,653)
FINANCING ACTIVITIES
Net increase (decrease) in demand, transaction and savings deposits	128,947	(70,008)
Net decrease in time deposits	(109,831)	(61,358)
Net increase in short-term borrowings	6,883	503
Pay down of long-term borrowings	(6,938)	(240)
Issuance of common stock	3,954	3,594
Common stock acquired		(2,710)
Cash dividends paid	(14,289)	(8,840)
Net cash provided by (used in) financing activities	8,726	(139,059)
Net decrease in cash, due from banks and interest-bearing deposits	(24,130)	(118,212)
Cash, due from banks and interest-bearing deposits at the beginning of the period	1,857,535	1,945,148
Cash, due from banks and interest-bearing deposits at the end of the period	1,833,405	1,826,936
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	10,058	10,756
Cash paid during the period for income taxes	21,128	18,646
Noncash investing and financing activities:
Unpaid common stock dividends declared	$ 5,244	$ 4,739

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Securities, fair value	$ 535,665	$ 527,735	$ 474,755
Common stock, par value	$ 1.00	$ 1.00	$ 1.00
Common stock, shares authorized	20,000,000	20,000,000	20,000,000
Common stock, shares issued	15,449,546	15,333,622	15,298,308
Common stock, shares outstanding	15,449,546	15,333,622	15,298,308
Accumulated other comprehensive income, tax	$ 2,880	$ 2,103	$ 2,083
Senior Preferred Stock [Member]
Preferred stock, par value	$ 1.00	$ 1.00	$ 1.00
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Preferred stock, shares issued	0	0	0
Cumulative Preferred Stock [Member]
Preferred stock, par value	$ 5.00	$ 5.00	$ 5.00
Preferred stock, shares authorized	900,000	900,000	900,000
Preferred stock, shares issued	0	0	0

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Derivative Financial Instruments

9 Months Ended

Sep. 30, 2014

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:

	September 30, 2014
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value
	(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		288		$	935
Derivative liabilities	Barrels		(288	)		(558	)
Natural Gas
Derivative assets	MMBTUs		1,718			1,713
Derivative liabilities	MMBTUs		(1,718	)		(692	)
Total Fair Value	Included in
Derivative assets	Other assets					2,648
Derivative liabilities	Other liabilities					1,250

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 September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	(Dollars in thousands)
Derivative income	$	72	$	71	$	370	$	309

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.

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 customers:

	September 30, 2014
	(Dollars in thousands)
Credit exposure	$	226

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	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
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		15,486,546

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Segment Information

9 Months Ended

Sep. 30, 2014

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:
September 30, 2014
Net interest income (expense)	$	15,267	$	30,076	$	1,594	$	(423	)	$	—		$	46,514
Noninterest income		3,417		13,163		7,722		20,105			(19,469	)		24,938
Income before taxes		10,640		21,377		3,002		11,893			(19,287	)		27,625
September 30, 2013
Net interest income (expense)	$	14,043	$	25,613	$	1,491	$	(435	)	$	—		$	40,712
Noninterest income		3,213		12,750		6,864		15,651			(14,826	)		23,652
Income before taxes		9,173		15,229		2,619		8,688			(14,654	)		21,055
Nine Months Ended:
September 30, 2014
Net interest income (expense)	$	44,426	$	86,272	$	4,538	$	(1,204	)	$	—		$	134,032
Noninterest income		10,293		38,402		21,107		51,979			(49,670	)		72,111
Income before taxes		25,914		54,146		8,360		29,252			(49,396	)		68,276
September 30, 2013
Net interest income (expense)	$	41,997	$	76,181	$	4,786	$	(1,366	)	$	—		$	121,598
Noninterest income		9,519		36,141		19,839		44,192			(41,771	)		67,920
Income before taxes		26,218		43,818		8,014		24,425			(41,481	)		60,994
Total Assets:
September 30, 2014	$	2,189,295	$	4,107,457	$	110,778	$	647,076		$	(648,031	)	$	6,406,575
December 31, 2013		2,079,444		3,764,429		103,656		703,294			(611,849	)		6,038,974
September 30, 2013		2,031,194		3,723,491		120,476		647,336			(595,767	)		5,926,730

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, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INTEREST INCOME
Loans, including fees	$ 46,759	$ 41,694	$ 135,263	$ 124,361
Securities:
Taxable	1,536	1,097	4,343	3,745
Tax-exempt	262	284	815	944
Federal funds sold			1	2
Interest-bearing deposits with banks	1,112	1,031	3,302	2,978
Total interest income	49,669	44,106	143,724	132,030
INTEREST EXPENSE
Deposits	2,658	2,849	8,180	8,778
Short-term borrowings	6	1	13	4
Long-term borrowings		52	25	176
Junior subordinated debentures	491	492	1,474	1,474
Total interest expense	3,155	3,394	9,692	10,432
Net interest income	46,514	40,712	134,032	121,598
Provision for loan losses	(3,115)	(12)	1,232	804
Net interest income after provision for loan losses	49,629	40,724	132,800	120,794
NONINTEREST INCOME
Trust revenue	2,380	2,122	6,846	6,043
Service charges on deposits	14,226	13,575	42,044	38,835
Securities transactions	284	90	819	341
Income from sales of loans	569	560	1,387	1,939
Insurance commissions	4,152	3,892	11,380	10,982
Cash management	1,770	1,620	5,058	4,669
Gain on sale of other assets	242	49	250	300
Other	1,315	1,744	4,327	4,811
Total noninterest income	24,938	23,652	72,111	67,920
NONINTEREST EXPENSE
Salaries and employee benefits	28,153	26,094	81,569	76,388
Occupancy and fixed assets expense, net	2,920	2,768	8,493	7,849
Depreciation	2,432	2,307	7,156	6,973
Amortization of intangible assets	444	424	1,310	1,291
Data processing services	1,183	1,173	3,538	3,587
Net expense from other real estate owned	173	105	317	870
Marketing and business promotion	1,429	1,668	4,806	4,631
Deposit insurance	810	750	2,456	2,235
Other	9,398	8,032	26,990	23,896
Total noninterest expense	46,942	43,321	136,635	127,720
Income before taxes	27,625	21,055	68,276	60,994
Income tax expense	8,832	6,564	20,138	20,538
Net income	18,793	14,491	48,138	40,456
NET INCOME PER COMMON SHARE
Basic	$ 1.22	$ 0.94	$ 3.12	$ 2.65
Diluted	$ 1.19	$ 0.93	$ 3.05	$ 2.61
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $210, $186, $(811) and $1,269, respectively	(332)	(346)	713	(2,360)
Reclassification adjustment for gains included in net income, net of tax of $-, $6, $34 and $48, respectively		(11)	(54)	(89)
Other comprehensive income (loss), net of tax of $210, $192, $(777) and $1,317, respectively	(332)	(357)	659	(2,449)
Comprehensive income	$ 18,461	$ 14,134	$ 48,797	$ 38,007

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Intangible Assets

9 Months Ended

Sep. 30, 2014

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 September 30, 2014
Core deposit intangibles	$	13,198	$	(5,659	)	$	7,539
Customer relationship intangibles		5,699		(2,608	)		3,091
Mortgage servicing intangibles		659		(183	)		476
Total	$	19,556	$	(8,450	)	$	11,106

The following is a summary of goodwill by business segment:

	Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support		Consolidated
	(Dollars in thousands)
Balance at December 31, 2013	$	8,078	$	30,553	$	5,464	$	450	$	44,545
Acquisitions		—		417		—		—		417
Balance at September 30, 2014	$	8,078	$	30,970	$	5,464	$	450	$	44,962

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, 2013.

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Loans and Allowance for Loan Losses

9 Months Ended

Sep. 30, 2014

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:

	September 30, 2014					December 31, 2013					September 30, 2013
	Amount		Percent			Amount		Percent			Amount		Percent
	(Dollars in thousands)
Commercial and industrial	$	690,945		18.36	%	$	605,672		17.88	%	$	566,670		16.87	%
Oil & gas production & equipment		106,296		2.82			96,907		2.86			139,605		4.16
Agriculture		104,037		2.77			111,323		3.29			89,258		2.66
State and political subdivisions:
Taxable		17,412		0.46			10,217		0.30			10,248		0.31
Tax-exempt		17,196		0.46			11,073		0.33			12,232		0.36
Real estate:
Construction		353,828		9.40			284,808		8.41			283,468		8.44
Farmland		149,035		3.96			132,512		3.91			133,397		3.97
One to four family residences		770,100		20.47			703,903		20.78			696,651		20.74
Multifamily residential properties		65,279		1.74			60,080		1.77			57,825		1.72
Commercial		1,190,240		31.64			1,097,484		32.40			1,100,544		32.76
Consumer		265,526		7.06			250,588		7.40			248,025		7.38
Other (not classified above)		32,449		0.86			22,579		0.67			21,015		0.63
Total loans	$	3,762,343		100.00	%	$	3,387,146		100.00	%	$	3,358,938		100.00	%
Loans held for sale (included above)	$	8,760				$	6,469				$	4,934

The Company’s loans are mostly to customers within Oklahoma and over 60% 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, 2013.

Nonperforming and Restructured Assets

The following is a summary of nonperforming and restructured assets:

	September 30,			December 31,			September 30,
	2014			2013			2013
	(Dollars in thousands)
Past due 90 days or more and still accruing	$	2,004		$	1,179		$	1,266
Nonaccrual		17,052			14,390			15,094
Restructured		17,125			17,624			18,028
Total nonperforming and restructured loans		36,181			33,193			34,388
Other real estate owned and repossessed assets		7,016			8,386			8,428
Total nonperforming and restructured assets	$	43,197		$	41,579		$	42,816
Nonperforming and restructured loans to total loans		0.96	%		0.98	%		1.02	%
Nonperforming and restructured assets to total assets		0.67	%		0.69	%		0.72	%

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 $839,000 for the nine months ended September 30, 2014 and approximately $1.3 million for the nine months ended September 30, 2013.

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.

	September 30, 2014		September 30, 2013
	(Dollars in thousands)
Non-residential real estate owner occupied	$	309	$	551
Non-residential real estate other		5,272		6,784
Residential real estate permanent mortgage		780		714
Residential real estate all other		1,589		1,865
Non-consumer non-real estate		1,430		1,280
Consumer non-real estate		237		124
Other loans		1,555		1,446
Acquired loans		5,880		2,330
Total	$	17,052	$	15,094

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

	Age Analysis of Past Due Loans
	30-89 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 September 30, 2014
Non-residential real estate owner occupied	$	651	$	258	$	909	$	488,289	$	489,198	$	60
Non-residential real estate other		4,198		825		5,023		941,181		946,204		—
Residential real estate permanent mortgage		1,903		737		2,640		298,024		300,664		414
Residential real estate all other		1,977		1,271		3,248		622,733		625,981		503
Non-consumer non-real estate		1,306		826		2,132		878,177		880,309		78
Consumer non-real estate		1,973		344		2,317		246,192		248,509		212
Other loans		1,684		674		2,358		152,187		154,545		—
Acquired loans		2,455		3,615		6,070		110,863		116,933		737
Total	$	16,147	$	8,550	$	24,697	$	3,737,646	$	3,762,343	$	2,004
As of September 30, 2013
Non-residential real estate owner occupied	$	779	$	326	$	1,105	$	458,241	$	459,346	$	308
Non-residential real estate other		6,046		1,925		7,971		869,531		877,502		51
Residential real estate permanent mortgage		2,017		492		2,509		253,708		256,217		217
Residential real estate all other		1,900		1,401		3,301		547,849		551,150		32
Non-consumer non-real estate		889		1,013		1,902		776,576		778,478		138
Consumer non-real estate		2,179		194		2,373		222,122		224,495		187
Other loans		1,531		1,275		2,806		136,060		138,866		236
Acquired loans		1,194		473		1,667		71,217		72,884		97
Total	$	16,535	$	7,099	$	23,634	$	3,335,304	$	3,358,938	$	1,266

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 September 30, 2014
Non-residential real estate owner occupied	$	525	$	456	$	15	$	543
Non-residential real estate other		23,730		21,861		1,334		22,016
Residential real estate permanent mortgage		1,432		1,223		83		1,089
Residential real estate all other		2,381		2,181		301		1,874
Non-consumer non-real estate		2,004		1,693		414		2,371
Consumer non-real estate		610		596		137		562
Other loans		1,819		1,555		170		1,626
Acquired loans		16,004		10,688		—		10,825
Total	$	48,505	$	40,253	$	2,454	$	40,906
As of September 30, 2013
Non-residential real estate owner occupied	$	993	$	924	$	34	$	700
Non-residential real estate other		25,724		24,216		2,240		25,871
Residential real estate permanent mortgage		1,263		1,068		57		1,298
Residential real estate all other		2,423		2,020		381		3,668
Non-consumer non-real estate		1,931		1,599		396		1,508
Consumer non-real estate		413		394		67		444
Other loans		1,905		1,782		300		1,911
Acquired loans		9,879		7,853		95		8,109
Total	$	44,531	$	39,856	$	3,570	$	43,509

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, 2013.

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 September 30, 2014
Non-residential real estate owner occupied	$	410,316	$	72,555	$	5,958	$	369	$	—	$	489,198
Non-residential real estate other		791,859		129,504		19,569		5,272		—		946,204
Residential real estate permanent mortgage		267,753		25,888		5,746		1,277		—		300,664
Residential real estate all other		523,365		94,332		6,196		2,088		—		625,981
Non-consumer non-real estate		736,664		111,958		30,035		1,652		—		880,309
Consumer non-real estate		234,102		12,258		1,600		547		2		248,509
Other loans		151,448		2,094		624		189		190		154,545
Acquired loans		55,356		40,631		13,754		6,723		469		116,933
Total	$	3,170,863	$	489,220	$	83,482	$	18,117	$	661	$	3,762,343
As of September 30, 2013
Non-residential real estate owner occupied	$	388,923	$	64,418	$	5,189	$	816	$	—	$	459,346
Non-residential real estate other		714,670		134,760		21,237		6,835		—		877,502
Residential real estate permanent mortgage		224,518		25,091		5,574		1,034		—		256,217
Residential real estate all other		457,649		82,827		8,721		1,953		—		551,150
Non-consumer non-real estate		681,695		91,108		4,254		1,421		—		778,478
Consumer non-real estate		210,285		11,760		2,047		403		—		224,495
Other loans		135,169		2,646		738		313		—		138,866
Acquired loans		53,364		12,707		4,207		2,606		—		72,884
Total	$	2,866,273	$	425,317	$	51,967	$	15,381	$	—	$	3,358,938

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, 2013.

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 September 30, 2014
Non-residential real estate owner occupied	$	5,241	$	—		$	20	$	20		$	(798	)	$	4,463
Non-residential real estate other		11,238		(29	)		45		16			(1,784	)		9,470
Residential real estate permanent mortgage		3,310		(12	)		18		6			(464	)		2,852
Residential real estate all other		6,815		(23	)		9		(14	)		(649	)		6,152
Non-consumer non-real estate		11,967		(391	)		21		(370	)		412			12,009
Consumer non-real estate		2,645		(177	)		58		(119	)		(132	)		2,394
Other loans		1,993		(93	)		8		(85	)		219			2,127
Acquired loans		88		(201	)		32		(169	)		81			—
Total	$	43,297	$	(926	)	$	211	$	(715	)	$	(3,115	)	$	39,467
Nine Months Ended September 30, 2014
Non-residential real estate owner occupied	$	4,827	$	(22	)	$	85	$	63		$	(427	)	$	4,463
Non-residential real estate other		11,026		(29	)		48		19			(1,575	)		9,470
Residential real estate permanent mortgage		2,825		(174	)		59		(115	)		142			2,852
Residential real estate all other		6,708		(116	)		23		(93	)		(463	)		6,152
Non-consumer non-real estate		8,977		(522	)		51		(471	)		3,503			12,009
Consumer non-real estate		2,556		(508	)		166		(342	)		180			2,394
Other loans		1,991		(344	)		135		(209	)		345			2,127
Acquired loans		124		(366	)		715		349			(473	)		—
Total	$	39,034	$	(2,081	)	$	1,282	$	(799	)	$	1,232		$	39,467

	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 September 30, 2013
Allowance for loan losses:
Non-residential real estate owner occupied	$	4,714	$	(1	)	$	—	$	(1	)	$	144		$	4,857
Non-residential real estate other		10,866		—			2		2			404			11,272
Residential real estate permanent mortgage		2,733		(30	)		12		(18	)		7			2,722
Residential real estate all other		7,349		(23	)		3		(20	)		(722	)		6,607
Non-consumer non-real estate		8,751		(34	)		110		76			36			8,863
Consumer non-real estate		2,389		(163	)		65		(98	)		207			2,498
Other loans		1,961		(76	)		24		(52	)		36			1,945
Acquired loans		219		(3	)		3		—			(124	)		95
Total	$	38,982	$	(330	)	$	219	$	(111	)	$	(12	)	$	38,859
Nine Months Ended September 30, 2013
Non-residential real estate owner occupied	$	5,104	$	(3	)	$	16	$	13		$	(260	)	$	4,857
Non-residential real estate other		9,865		(19	)		12		(7	)		1,414			11,272
Residential real estate permanent mortgage		2,781		(126	)		27		(99	)		40			2,722
Residential real estate all other		7,034		(177	)		30		(147	)		(280	)		6,607
Non-consumer non-real estate		9,385		(139	)		159		20			(542	)		8,863
Consumer non-real estate		2,451		(458	)		202		(256	)		303			2,498
Other loans		1,885		(235	)		55		(180	)		240			1,945
Acquired loans		220		(53	)		39		(14	)		(111	)		95
Total	$	38,725	$	(1,210	)	$	540	$	(670	)	$	804		$	38,859

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
	September 30, 2014				September 30, 2013
	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)
Non-residential real estate owner occupied	$	237	$	4,226	$	228	$	4,629
Non-residential real estate other		1,452		8,018		2,529		8,743
Residential real estate permanent mortgage		374		2,478		226		2,496
Residential real estate all other		739		5,413		1,058		5,549
Non-consumer non-real estate		4,671		7,338		1,052		7,811
Consumer non-real estate		365		2,029		314		2,184
Other loans		161		1,966		246		1,699
Acquired loans		—		—		—		95
Total	$	7,999	$	31,468	$	5,653	$	33,206

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
	September 30, 2014						September 30, 2013
	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)
Non-residential real estate owner occupied	$	6,326	$	482,871	$	—	$	6,005	$	453,341	$	—
Non-residential real estate other		26,822		919,382		—		28,072		849,430		—
Residential real estate permanent mortgage		7,023		293,641		—		6,609		249,609		—
Residential real estate all other		8,284		617,697		—		10,674		540,476		—
Non-consumer non-real estate		32,977		847,332		—		5,675		772,803		—
Consumer non-real estate		2,150		246,360		—		2,448		222,045		—
Other loans		259		154,286		—		292		138,575		—
Acquired loans		—		95,987		20,946		—		66,071		6,813
Total	$	83,841	$	3,657,556	$	20,946	$	59,775	$	3,292,350	$	6,813

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:

	Nine Months Ended September 30,
	2014		2013
	(Dollars in thousands)
Other real estate owned	$	2,073	$	1,287
Repossessed assets		955		946
Total	$	3,028	$	2,233

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

Disclosure of Compensation Related Costs, Share-based 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:

	Options			Wgtd. Avg. Exercise Price		Wgtd. Avg. Remaining Contractual Term			Aggregate Intrinsic Value
	(Dollars in thousands, except per share data)
Nine Months Ended September 30, 2014
Outstanding at December 31, 2013		1,158,317		$	34.45
Options granted		24,000			60.59
Options exercised		(114,568	)		28.34
Options canceled, forfeited, or expired		(3,125	)		36.73
Outstanding at September 30, 2014		1,064,624			35.68		8.59	Yr	$	28,616
Exercisable at September 30, 2014		493,149			28.95		4.96	Yr	$	16,573

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 September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	(Dollars in thousands, except per share data)
Weighted average grant-date fair value per share of options granted	$	12.75	$	10.63	$	12.57	$	9.05
Total intrinsic value of options exercised		1,560		1,424		3,606		2,653
Cash received from options exercised		1,605		1,775		3,247		2,976
Tax benefit realized from options exercised		604		551		1,395		1,026

Stock-based Employee Compensation Expense

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
	(Dollars in thousands)
Stock-based compensation expense	$	448		$	399		$	1,224		$	1,094
Tax benefit		(173	)		(154	)		(473	)		(423	)
Stock-based compensation expense, net of tax	$	275		$	245		$	751		$	671

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:

	September 30, 2014
	(Dollars in thousands)
Fair value of stock options	$	4,341

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:

	Nine Months Ended September 30,
	2014			2013
Risk-free interest rate		2.50 to 2.54	%		2.53 to 2.70	%
Dividend yield		2.00	%		2.00	%
Stock price volatility		18.62 to 18.98	%		18.35 to 18.36	%
Expected term		10	Yrs		10	Yrs

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

9 Months Ended

Sep. 30, 2014

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., BancFirst Agency, Inc. and BancFirst Community Development Corporation. BancFirst Community Development Corporation was dissolved in September 2014. 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, 2013, 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, 2013, the date of the most recent annual report.

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 August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“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 are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments may be adopted using either a modified retrospective transition method or a prospective transition method. Early adoption is permitted. Adoption of ASU 2014-04 is not expected to 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 are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments are required to be applied retrospectively to all periods presented. Early adoption is permitted and adoption of the standard is optional. Adoption of ASU 2014-01 may affect income statement presentation, but otherwise is not expected to have a material impact on the Company’s financial statements.

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Net Income Per Common Share

9 Months Ended

Sep. 30, 2014

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 September 30, 2014
Basic
Income available to common stockholders	$	18,793		15,425,920	$	1.22
Effect of stock options		—		369,923
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	18,793		15,795,843	$	1.19
Three Months Ended September 30, 2013
Basic
Income available to common stockholders	$	14,491		15,287,535	$	0.94
Effect of stock options		—		307,346
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	14,491		15,594,881	$	0.93
Nine Months Ended September 30, 2014
Basic
Income available to common stockholders	$	48,138		15,412,611	$	3.12
Effect of stock options		—		361,686
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	48,138		15,774,297	$	3.05
Nine Months Ended September 30, 2013
Basic
Income available to common stockholders	$	40,456		15,252,967	$	2.65
Effect of stock options		—		263,387
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	40,456		15,516,354	$	2.61

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 Exercise Price
Three Months Ended September 30, 2014		76,413	$	56.23
Three Months Ended September 30, 2013		3,804		50.74
Nine Months Ended September 30, 2014		63,645		55.35
Nine Months Ended September 30, 2013		330,165		40.09

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Fair Value Measurements - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Debt Instrument, Fair Value Disclosure [Abstract]
Loan held for sale selling period	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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Stock-Based Compensation

9 Months Ended

Sep. 30, 2014

Disclosure of Compensation Related Costs, Share-based 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 September 30, 2014, 124,985 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 September 30, 2014 will become exercisable through the year 2021. 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 September 30, 2014, 30,000 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 September 30, 2014 will become exercisable through the year 2017. 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:

	Options			Wgtd. Avg. Exercise Price		Wgtd. Avg. Remaining Contractual Term			Aggregate Intrinsic Value
	(Dollars in thousands, except per share data)
Nine Months Ended September 30, 2014
Outstanding at December 31, 2013		1,158,317		$	34.45
Options granted		24,000			60.59
Options exercised		(114,568	)		28.34
Options canceled, forfeited, or expired		(3,125	)		36.73
Outstanding at September 30, 2014		1,064,624			35.68		8.59	Yr	$	28,616
Exercisable at September 30, 2014		493,149			28.95		4.96	Yr	$	16,573

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 September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	(Dollars in thousands, except per share data)
Weighted average grant-date fair value per share of options granted	$	12.75	$	10.63	$	12.57	$	9.05
Total intrinsic value of options exercised		1,560		1,424		3,606		2,653
Cash received from options exercised		1,605		1,775		3,247		2,976
Tax benefit realized from options exercised		604		551		1,395		1,026

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 September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
	(Dollars in thousands)
Stock-based compensation expense	$	448		$	399		$	1,224		$	1,094
Tax benefit		(173	)		(154	)		(473	)		(423	)
Stock-based compensation expense, net of tax	$	275		$	245		$	751		$	671

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:

	September 30, 2014
	(Dollars in thousands)
Fair value of stock options	$	4,341

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

	Nine Months Ended September 30,
	2014			2013
Risk-free interest rate		2.50 to 2.54	%		2.53 to 2.70	%
Dividend yield		2.00	%		2.00	%
Stock price volatility		18.62 to 18.98	%		18.35 to 18.36	%
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

9 Months Ended

Sep. 30, 2014

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:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Number of shares repurchased		—		—		—		40,241
Average price of shares repurchased	$	—	$	—	$	—	$	40.88
Shares remaining to be repurchased		194,723		194,723		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 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 September 30, 2014, 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:

	Actual					Required For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
As of September 30, 2014:
Total Capital (to Risk Weighted Assets)-
BancFirst Corporation	$	601,492		14.60	%	$	329,665		8.00	%		N/A		N/A
BancFirst		559,960		13.61	%		329,121		8.00	%	$	411,401		10.00	%
Tier 1 Capital (to Risk Weighted Assets)-
BancFirst Corporation	$	562,025		13.64	%	$	164,832		4.00	%		N/A		N/A
BancFirst		520,493		12.65	%		164,560		4.00	%	$	246,841		6.00	%
Tier 1 Capital (to Total Assets)-
BancFirst Corporation	$	562,025		8.85	%	$	192,198		3.00	%		N/A		N/A
BancFirst		520,493		8.21	%		191,602		3.00	%	$	319,337		5.00	%

As of September 30, 2014, BancFirst was considered to be “well capitalized” and there are no conditions or events since the most recent notification of BancFirst’s capital category that management believes would materially change its category under capital requirements existing as of the report date. To be well capitalized under Federal bank regulatory agency definitions, a depository institution must have a Tier 1 Capital (to Risk-Weighted Assets) of at least 6%, a combined Total Capital (to Risk Weighted Assets) of at least 10%, and a Tier 1 Capital (to Total Assets) of at least 5%. The Company’s trust preferred securities have continued to be included in Tier 1 Capital as the Company’s total assets do not exceed $10 billion.

Basel III Capital Rules

In July 2013, the three Federal bank regulatory agencies jointly published final rules (the “Basel III Capital Rules”) establishing a new comprehensive capital framework for U.S. banking organizations. The rules implement the Basel Committee’s December 2010 framework known as “Basel III” for strengthening international capital standards as well as certain provisions of the Dodd-Frank Act. These Rules substantially revise the risk-based capital requirements applicable to bank holding companies and depository institutions, compared to the current U.S. risk-based capital rules. The Basel III Capital Rules define the components of capital and address other issues affecting the numerator in banking institutions’ regulatory capital ratios. These Rules also address risk weights and other issues affecting the denominator in banking institutions’ regulatory capital ratios and replace the existing risk-weighting approach with a more risk-sensitive approach. The Basel III Capital Rules also implement the requirements of Section 939A of the Dodd-Frank Act to remove references to credit ratings from the federal banking agencies’ rules. The Basel III Capital Rules are 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.

Under the Basel III Capital Rules, the initial minimum capital ratios as of January 1, 2015 will be as follows:

4.5% CET1 to risk-weighted assets.

6.0% Tier 1 capital to risk-weighted assets.

8.0% Total capital to risk-weighted assets.

4.0% Minimum leverage ratio

Implementation of the deductions and other adjustments to CET1 will begin 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 September 30, 2014, 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

9 Months Ended

Sep. 30, 2014

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 quarterly. 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 September 30, 2014 and 2013, 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)
September 30, 2014
Securities available for sale:
U.S. Treasury	$	229,299	$	—	$	—	$	229,299
U.S. federal agencies		—		199,030		—		199,030
Mortgage-backed securities		—		10,551		17,032		27,583
States and political subdivisions		—		54,421		—		54,421
Other securities		—		3,495		12,992		16,487
Derivative assets		—		2,648		—		2,648
Derivative liabilities		—		1,250		—		1,250
Loans held for sale		—		8,706		—		8,706
Mortgage servicing intangibles		—		—		476		476
September 30, 2013
Securities available for sale:
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. federal agencies		—		360,904		—		360,904
Mortgage-backed securities		—		14,455		19,501		33,956
States and political subdivisions		—		53,386		—		53,386
Other securities		—		3,421		10,760		14,181
Derivative assets		—		3,049		—		3,049
Derivative liabilities		—		1,886		—		1,886
Loans held for sale		—		4,934		—		4,934
Mortgage servicing intangibles		—		—		595		595

The changes in Level 3 assets measured at estimated fair value on a recurring basis during the nine months ended September 30, 2014 and 2013 were as follows:

	Nine Months Ended September 30,
	2014			2013
	(Dollars in thousands)
Balance at the beginning of the year	$	32,002		$	10,779
Purchases, issuances and settlements		(1,518	)		20,600
Sales		(813	)		(251	)
Gains included in earnings		673			182
Total unrealized gains (losses)		156			(454	)
Balance at the end of the period	$	30,500		$	30,856

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 nine months ended September 30, 2014 and 2013, 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 gains or losses recognized during the period:

	Level 1		Level 2		Level 3		Total Fair Value		Gains (Losses)
	(Dollars in thousands)
Nine Months Ended September 30, 2014
Impaired loans (less specific allowance)		—		—	$	37,799	$	37,799	$	—
Foreclosed assets		—		—		190		190		(191	)
Other real estate owned		—		—		6,826		6,826		(7	)
Nine Months Ended September 30, 2013
Impaired loans (less specific allowance)		—		—	$	36,286	$	36,286	$	—
Foreclosed assets		—		—		307		307		(9	)
Other real estate owned		—		—		8,121		8,121		(754	)

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:

	September 30,
	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,833,705	$	1 ,833,705	$	1,826,936	$	1,826,936
Securities held for investment		8,766		8,845		12,213		12,328
Level 3 inputs:
Loans, net		3,722,876		3,753,128		3,320,079		3,346,578
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,740,449		5,777,715		5,309,464		5,338,655
Short-term borrowings		11,473		11,473		5,074		5,074
Long-term borrowings		—		—		8,938		8,889
Junior subordinated debentures		26,804		29,699		26,804		28,927
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,775				1,378
Letters of credit				369				468

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 quarterly) 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 September 30, 2014 or 2013.

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Fair Value Measurements - Estimated Fair Values of Company's Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
FINANCIAL ASSETS
Cash and cash equivalents	$ 1,833,405	$ 1,857,535	$ 1,826,936	$ 1,945,148
Securities held for investment	8,766
Loans, net	3,722,876	3,348,112	3,320,079
FINANCIAL LIABILITIES
Deposits	5,740,449	5,419,519	5,309,464
Short-term borrowings	11,473	4,590	5,074
Long-term borrowings		6,938	8,938
Junior subordinated debentures	26,804	26,804	26,804
Carrying Amount [Member] | Level 2 Inputs [Member]
FINANCIAL ASSETS
Cash and cash equivalents	1,833,705		1,826,936
Securities held for investment	8,766		12,213
FINANCIAL LIABILITIES
Deposits	5,740,449		5,309,464
Short-term borrowings	11,473		5,074
Long-term borrowings			8,938
Junior subordinated debentures	26,804		26,804
Carrying Amount [Member] | Level 3 Inputs [Member]
FINANCIAL ASSETS
Loans, net	3,722,876		3,320,079
Fair Value [Member]
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments	1,775		1,378
Letters of credit	369		468
Fair Value [Member] | Level 2 Inputs [Member]
FINANCIAL ASSETS
Cash and cash equivalents	1,833,705		1,826,936
Securities held for investment	8,845		12,328
FINANCIAL LIABILITIES
Deposits	5,777,715		5,338,655
Short-term borrowings	11,473		5,074
Long-term borrowings			8,889
Junior subordinated debentures	29,699		28,927
Fair Value [Member] | Level 3 Inputs [Member]
FINANCIAL ASSETS
Loans, net	$ 3,753,128		$ 3,346,578

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Derivative Financial Instruments - Recognized Derivative Income Included in Other Noninterest Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative income	$ 72	$ 71	$ 370	$ 309

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Fair Value Measurements - Assets Measured at Fair Value on Nonrecurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Impaired Loans (Less Specific Allowance) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	$ 37,799	$ 36,286
Gains (Losses)	0
Foreclosed Assets [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	190	307
Gains (Losses)	(191)	(9)
Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	6,826	8,121
Gains (Losses)	(7)	(754)
Level 3 Inputs [Member] | Impaired Loans (Less Specific Allowance) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	37,799	36,286
Level 3 Inputs [Member] | Foreclosed Assets [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	190	307
Level 3 Inputs [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total Fair Value	$ 6,826	$ 8,121

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Securities - Maturity of Securities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Amortized Cost and Fair Value Debt Securities [Abstract]
Amortized cost, Within one year	$ 1,402
Amortized cost, After one year but within five years	6,693
Amortized cost, After five years but within ten years	504
Amortized cost, After ten years	167
Amortized cost, Total	8,766
Amortized Cost, Within one year	65,407
Amortized Cost, After one year but within five years	332,820
Amortized Cost, After five years but within ten years	23,306
Amortized Cost, After ten years	88,883
Total debt securities	510,416
Amortized Cost, Equity securities	8,958
Amortized Cost, Total	519,374
Estimated Fair Value, Within one year	1,409
Estimated Fair Value, After one year but within five years	6,726
Estimated Fair Value, After five years but within ten years	524
Estimated Fair Value, After ten years	186
Estimated Fair Value	8,845
Estimated Fair Value, Within one year	65,570
Estimated Fair Value, After one year but within five years	334,299
Estimated Fair Value, After five years but within ten years	24,098
Estimated Fair Value, After ten years	89,861
Total debt securities	513,828
Estimated Fair Value, Equity securities	12,992
Estimated Fair Value, Total	$ 526,820

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Stock-Based Compensation - Options Granted and Options Exercised Under Stock Option Plan (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average grant-date fair value per share of options granted	$ 12.75	$ 10.63	$ 12.57	$ 9.05
Total intrinsic value of options exercised	$ 1,560	$ 1,424	$ 3,606	$ 2,653
Cash received from options exercised	1,605	1,775	3,247	2,976
Tax benefit realized from options exercised	$ 604	$ 551	$ 1,395	$ 1,026

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Loans and Allowance for Loan Losses (Tables)

9 Months Ended

Sep. 30, 2014

Receivables [Abstract]

Schedule of Loans Outstanding by Category

The following is a schedule of loans outstanding by category:

	September 30, 2014					December 31, 2013					September 30, 2013
	Amount		Percent			Amount		Percent			Amount		Percent
	(Dollars in thousands)
Commercial and industrial	$	690,945		18.36	%	$	605,672		17.88	%	$	566,670		16.87	%
Oil & gas production & equipment		106,296		2.82			96,907		2.86			139,605		4.16
Agriculture		104,037		2.77			111,323		3.29			89,258		2.66
State and political subdivisions:
Taxable		17,412		0.46			10,217		0.30			10,248		0.31
Tax-exempt		17,196		0.46			11,073		0.33			12,232		0.36
Real estate:
Construction		353,828		9.40			284,808		8.41			283,468		8.44
Farmland		149,035		3.96			132,512		3.91			133,397		3.97
One to four family residences		770,100		20.47			703,903		20.78			696,651		20.74
Multifamily residential properties		65,279		1.74			60,080		1.77			57,825		1.72
Commercial		1,190,240		31.64			1,097,484		32.40			1,100,544		32.76
Consumer		265,526		7.06			250,588		7.40			248,025		7.38
Other (not classified above)		32,449		0.86			22,579		0.67			21,015		0.63
Total loans	$	3,762,343		100.00	%	$	3,387,146		100.00	%	$	3,358,938		100.00	%
Loans held for sale (included above)	$	8,760				$	6,469				$	4,934

Summary of Nonperforming and Restructured Assets

The following is a summary of nonperforming and restructured assets:

	September 30,			December 31,			September 30,
	2014			2013			2013
	(Dollars in thousands)
Past due 90 days or more and still accruing	$	2,004		$	1,179		$	1,266
Nonaccrual		17,052			14,390			15,094
Restructured		17,125			17,624			18,028
Total nonperforming and restructured loans		36,181			33,193			34,388
Other real estate owned and repossessed assets		7,016			8,386			8,428
Total nonperforming and restructured assets	$	43,197		$	41,579		$	42,816
Nonperforming and restructured loans to total loans		0.96	%		0.98	%		1.02	%
Nonperforming and restructured assets to total assets		0.67	%		0.69	%		0.72	%

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.

	September 30, 2014		September 30, 2013
	(Dollars in thousands)
Non-residential real estate owner occupied	$	309	$	551
Non-residential real estate other		5,272		6,784
Residential real estate permanent mortgage		780		714
Residential real estate all other		1,589		1,865
Non-consumer non-real estate		1,430		1,280
Consumer non-real estate		237		124
Other loans		1,555		1,446
Acquired loans		5,880		2,330
Total	$	17,052	$	15,094

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
	30-89 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 September 30, 2014
Non-residential real estate owner occupied	$	651	$	258	$	909	$	488,289	$	489,198	$	60
Non-residential real estate other		4,198		825		5,023		941,181		946,204		—
Residential real estate permanent mortgage		1,903		737		2,640		298,024		300,664		414
Residential real estate all other		1,977		1,271		3,248		622,733		625,981		503
Non-consumer non-real estate		1,306		826		2,132		878,177		880,309		78
Consumer non-real estate		1,973		344		2,317		246,192		248,509		212
Other loans		1,684		674		2,358		152,187		154,545		—
Acquired loans		2,455		3,615		6,070		110,863		116,933		737
Total	$	16,147	$	8,550	$	24,697	$	3,737,646	$	3,762,343	$	2,004
As of September 30, 2013
Non-residential real estate owner occupied	$	779	$	326	$	1,105	$	458,241	$	459,346	$	308
Non-residential real estate other		6,046		1,925		7,971		869,531		877,502		51
Residential real estate permanent mortgage		2,017		492		2,509		253,708		256,217		217
Residential real estate all other		1,900		1,401		3,301		547,849		551,150		32
Non-consumer non-real estate		889		1,013		1,902		776,576		778,478		138
Consumer non-real estate		2,179		194		2,373		222,122		224,495		187
Other loans		1,531		1,275		2,806		136,060		138,866		236
Acquired loans		1,194		473		1,667		71,217		72,884		97
Total	$	16,535	$	7,099	$	23,634	$	3,335,304	$	3,358,938	$	1,266

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 September 30, 2014
Non-residential real estate owner occupied	$	525	$	456	$	15	$	543
Non-residential real estate other		23,730		21,861		1,334		22,016
Residential real estate permanent mortgage		1,432		1,223		83		1,089
Residential real estate all other		2,381		2,181		301		1,874
Non-consumer non-real estate		2,004		1,693		414		2,371
Consumer non-real estate		610		596		137		562
Other loans		1,819		1,555		170		1,626
Acquired loans		16,004		10,688		—		10,825
Total	$	48,505	$	40,253	$	2,454	$	40,906
As of September 30, 2013
Non-residential real estate owner occupied	$	993	$	924	$	34	$	700
Non-residential real estate other		25,724		24,216		2,240		25,871
Residential real estate permanent mortgage		1,263		1,068		57		1,298
Residential real estate all other		2,423		2,020		381		3,668
Non-consumer non-real estate		1,931		1,599		396		1,508
Consumer non-real estate		413		394		67		444
Other loans		1,905		1,782		300		1,911
Acquired loans		9,879		7,853		95		8,109
Total	$	44,531	$	39,856	$	3,570	$	43,509

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 September 30, 2014
Non-residential real estate owner occupied	$	410,316	$	72,555	$	5,958	$	369	$	—	$	489,198
Non-residential real estate other		791,859		129,504		19,569		5,272		—		946,204
Residential real estate permanent mortgage		267,753		25,888		5,746		1,277		—		300,664
Residential real estate all other		523,365		94,332		6,196		2,088		—		625,981
Non-consumer non-real estate		736,664		111,958		30,035		1,652		—		880,309
Consumer non-real estate		234,102		12,258		1,600		547		2		248,509
Other loans		151,448		2,094		624		189		190		154,545
Acquired loans		55,356		40,631		13,754		6,723		469		116,933
Total	$	3,170,863	$	489,220	$	83,482	$	18,117	$	661	$	3,762,343
As of September 30, 2013
Non-residential real estate owner occupied	$	388,923	$	64,418	$	5,189	$	816	$	—	$	459,346
Non-residential real estate other		714,670		134,760		21,237		6,835		—		877,502
Residential real estate permanent mortgage		224,518		25,091		5,574		1,034		—		256,217
Residential real estate all other		457,649		82,827		8,721		1,953		—		551,150
Non-consumer non-real estate		681,695		91,108		4,254		1,421		—		778,478
Consumer non-real estate		210,285		11,760		2,047		403		—		224,495
Other loans		135,169		2,646		738		313		—		138,866
Acquired loans		53,364		12,707		4,207		2,606		—		72,884
Total	$	2,866,273	$	425,317	$	51,967	$	15,381	$	—	$	3,358,938

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 September 30, 2014
Non-residential real estate owner occupied	$	5,241	$	—		$	20	$	20		$	(798	)	$	4,463
Non-residential real estate other		11,238		(29	)		45		16			(1,784	)		9,470
Residential real estate permanent mortgage		3,310		(12	)		18		6			(464	)		2,852
Residential real estate all other		6,815		(23	)		9		(14	)		(649	)		6,152
Non-consumer non-real estate		11,967		(391	)		21		(370	)		412			12,009
Consumer non-real estate		2,645		(177	)		58		(119	)		(132	)		2,394
Other loans		1,993		(93	)		8		(85	)		219			2,127
Acquired loans		88		(201	)		32		(169	)		81			—
Total	$	43,297	$	(926	)	$	211	$	(715	)	$	(3,115	)	$	39,467
Nine Months Ended September 30, 2014
Non-residential real estate owner occupied	$	4,827	$	(22	)	$	85	$	63		$	(427	)	$	4,463
Non-residential real estate other		11,026		(29	)		48		19			(1,575	)		9,470
Residential real estate permanent mortgage		2,825		(174	)		59		(115	)		142			2,852
Residential real estate all other		6,708		(116	)		23		(93	)		(463	)		6,152
Non-consumer non-real estate		8,977		(522	)		51		(471	)		3,503			12,009
Consumer non-real estate		2,556		(508	)		166		(342	)		180			2,394
Other loans		1,991		(344	)		135		(209	)		345			2,127
Acquired loans		124		(366	)		715		349			(473	)		—
Total	$	39,034	$	(2,081	)	$	1,282	$	(799	)	$	1,232		$	39,467

	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 September 30, 2013
Allowance for loan losses:
Non-residential real estate owner occupied	$	4,714	$	(1	)	$	—	$	(1	)	$	144		$	4,857
Non-residential real estate other		10,866		—			2		2			404			11,272
Residential real estate permanent mortgage		2,733		(30	)		12		(18	)		7			2,722
Residential real estate all other		7,349		(23	)		3		(20	)		(722	)		6,607
Non-consumer non-real estate		8,751		(34	)		110		76			36			8,863
Consumer non-real estate		2,389		(163	)		65		(98	)		207			2,498
Other loans		1,961		(76	)		24		(52	)		36			1,945
Acquired loans		219		(3	)		3		—			(124	)		95
Total	$	38,982	$	(330	)	$	219	$	(111	)	$	(12	)	$	38,859
Nine Months Ended September 30, 2013
Non-residential real estate owner occupied	$	5,104	$	(3	)	$	16	$	13		$	(260	)	$	4,857
Non-residential real estate other		9,865		(19	)		12		(7	)		1,414			11,272
Residential real estate permanent mortgage		2,781		(126	)		27		(99	)		40			2,722
Residential real estate all other		7,034		(177	)		30		(147	)		(280	)		6,607
Non-consumer non-real estate		9,385		(139	)		159		20			(542	)		8,863
Consumer non-real estate		2,451		(458	)		202		(256	)		303			2,498
Other loans		1,885		(235	)		55		(180	)		240			1,945
Acquired loans		220		(53	)		39		(14	)		(111	)		95
Total	$	38,725	$	(1,210	)	$	540	$	(670	)	$	804		$	38,859

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
	September 30, 2014				September 30, 2013
	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)
Non-residential real estate owner occupied	$	237	$	4,226	$	228	$	4,629
Non-residential real estate other		1,452		8,018		2,529		8,743
Residential real estate permanent mortgage		374		2,478		226		2,496
Residential real estate all other		739		5,413		1,058		5,549
Non-consumer non-real estate		4,671		7,338		1,052		7,811
Consumer non-real estate		365		2,029		314		2,184
Other loans		161		1,966		246		1,699
Acquired loans		—		—		—		95
Total	$	7,999	$	31,468	$	5,653	$	33,206

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
	September 30, 2014						September 30, 2013
	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)
Non-residential real estate owner occupied	$	6,326	$	482,871	$	—	$	6,005	$	453,341	$	—
Non-residential real estate other		26,822		919,382		—		28,072		849,430		—
Residential real estate permanent mortgage		7,023		293,641		—		6,609		249,609		—
Residential real estate all other		8,284		617,697		—		10,674		540,476		—
Non-consumer non-real estate		32,977		847,332		—		5,675		772,803		—
Consumer non-real estate		2,150		246,360		—		2,448		222,045		—
Other loans		259		154,286		—		292		138,575		—
Acquired loans		—		95,987		20,946		—		66,071		6,813
Total	$	83,841	$	3,657,556	$	20,946	$	59,775	$	3,292,350	$	6,813

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:

	Nine Months Ended September 30,
	2014		2013
	(Dollars in thousands)
Other real estate owned	$	2,073	$	1,287
Repossessed assets		955		946
Total	$	3,028	$	2,233

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2014

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 September 30, 2014 and 2013, 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)
September 30, 2014
Securities available for sale:
U.S. Treasury	$	229,299	$	—	$	—	$	229,299
U.S. federal agencies		—		199,030		—		199,030
Mortgage-backed securities		—		10,551		17,032		27,583
States and political subdivisions		—		54,421		—		54,421
Other securities		—		3,495		12,992		16,487
Derivative assets		—		2,648		—		2,648
Derivative liabilities		—		1,250		—		1,250
Loans held for sale		—		8,706		—		8,706
Mortgage servicing intangibles		—		—		476		476
September 30, 2013
Securities available for sale:
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. federal agencies		—		360,904		—		360,904
Mortgage-backed securities		—		14,455		19,501		33,956
States and political subdivisions		—		53,386		—		53,386
Other securities		—		3,421		10,760		14,181
Derivative assets		—		3,049		—		3,049
Derivative liabilities		—		1,886		—		1,886
Loans held for sale		—		4,934		—		4,934
Mortgage servicing intangibles		—		—		595		595

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 nine months ended September 30, 2014 and 2013 were as follows:

	Nine Months Ended September 30,
	2014			2013
	(Dollars in thousands)
Balance at the beginning of the year	$	32,002		$	10,779
Purchases, issuances and settlements		(1,518	)		20,600
Sales		(813	)		(251	)
Gains included in earnings		673			182
Total unrealized gains (losses)		156			(454	)
Balance at the end of the period	$	30,500		$	30,856

Assets Measured at Fair Value on Nonrecurring Basis

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

	Level 1		Level 2		Level 3		Total Fair Value		Gains (Losses)
	(Dollars in thousands)
Nine Months Ended September 30, 2014
Impaired loans (less specific allowance)		—		—	$	37,799	$	37,799	$	—
Foreclosed assets		—		—		190		190		(191	)
Other real estate owned		—		—		6,826		6,826		(7	)
Nine Months Ended September 30, 2013
Impaired loans (less specific allowance)		—		—	$	36,286	$	36,286	$	—
Foreclosed assets		—		—		307		307		(9	)
Other real estate owned		—		—		8,121		8,121		(754	)

Estimated Fair Values of Company's 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:

	September 30,
	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,833,705	$	1 ,833,705	$	1,826,936	$	1,826,936
Securities held for investment		8,766		8,845		12,213		12,328
Level 3 inputs:
Loans, net		3,722,876		3,753,128		3,320,079		3,346,578
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,740,449		5,777,715		5,309,464		5,338,655
Short-term borrowings		11,473		11,473		5,074		5,074
Long-term borrowings		—		—		8,938		8,889
Junior subordinated debentures		26,804		29,699		26,804		28,927
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,775				1,378
Letters of credit				369				468

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Stock-Based Compensation - Additional Information (Detail)	9 Months Ended				9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Non Employee Directors Stock Option Plan [Member]	May 31, 2014 Non Employee Directors Stock Option Plan [Member]	Sep. 30, 2014 Non Employee Directors Stock Option Plan [Member] Minimum [Member]	Sep. 30, 2014 Incentive Stock Option Plan [Member]	May 31, 2013 Incentive Stock Option Plan [Member]	Sep. 30, 2014 Incentive Stock Option Plan [Member] Minimum [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			3,000,000
Shares for future grants		30,000			124,985
Option exercisable rate		25.00%			25.00%
Option exercisable period		1 year			4 years
Options expire period		15 years			15 years
Share based compensation options exercisable period		2017			2021
Stock price percentage to fair value at grant date				100.00%			100.00%
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.			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.
Stock option plan termination date					Dec. 31, 2019
Vesting period in years		4 years			7 years
Number of options granted for non-employee director	10,000

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Loans and Allowance for Loan Losses - Impaired Loans Segregated by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	$ 48,505	$ 44,531
Recorded Investment with Allowance	40,253	39,856
Related Allowance	2,454	3,570
Average Recorded Investment	40,906	43,509
Non-residential Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	525	993
Recorded Investment with Allowance	456	924
Related Allowance	15	34
Average Recorded Investment	543	700
Non-residential Real Estate Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	23,730	25,724
Recorded Investment with Allowance	21,861	24,216
Related Allowance	1,334	2,240
Average Recorded Investment	22,016	25,871
Residential Real Estate Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	1,432	1,263
Recorded Investment with Allowance	1,223	1,068
Related Allowance	83	57
Average Recorded Investment	1,089	1,298
Residential Real Estate All Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	2,381	2,423
Recorded Investment with Allowance	2,181	2,020
Related Allowance	301	381
Average Recorded Investment	1,874	3,668
Non-consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	2,004	1,931
Recorded Investment with Allowance	1,693	1,599
Related Allowance	414	396
Average Recorded Investment	2,371	1,508
Consumer Non-real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	610	413
Recorded Investment with Allowance	596	394
Related Allowance	137	67
Average Recorded Investment	562	444
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	1,819	1,905
Recorded Investment with Allowance	1,555	1,782
Related Allowance	170	300
Average Recorded Investment	1,626	1,911
Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	16,004	9,879
Recorded Investment with Allowance	10,688	7,853
Related Allowance		95
Average Recorded Investment	$ 10,825	$ 8,109

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Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Net of tax on unrealized gains (losses) on securities	$ 210	$ 186	$ (811)	$ 1,269
Net of tax on reclassification adjustment for gains included in net income		6	34	48
Net of tax on other comprehensive income (loss)	$ 210	$ 192	$ (777)	$ 1,317

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Securities

9 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Securities

(3) SECURITIES

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

	September 30, 2014
	(Dollars in thousands)
Held for investment, at cost (fair value: $8,845)	$	8,766
Available for sale, at fair value		526,820
Total	$	535,586

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

	September 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(Dollars in thousands)
Mortgage backed securities (1)	$	499	$	37	$	—	$	536
States and political subdivisions		8,267		42		—		8,309
Total	$	8,766	$	79	$	—	$	8,845

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

	September 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(Dollars in thousands)
U.S. treasury and other federal agencies	$	426,901	$	1,577	$	(149	)	$	428,329
Mortgage backed securities (1)		27,535		624		(576	)		27,583
States and political subdivisions		52,553		1,911		(43	)		54,421
Other securities (2)		12,385		4,280		(178	)		16,487
Total	$	519,374	$	8,392	$	(946	)	$	526,820

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

(2) Primarily consists of equity 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.

	September 30, 2014
	Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	1,402	$	1,409
After one year but within five years		6,693		6,726
After five years but within ten years		504		524
After ten years		167		186
Total	$	8,766	$	8,845
Available for Sale
Contractual maturity of debt securities:
Within one year	$	65,407	$	65,570
After one year but within five years		332,820		334,299
After five years but within ten years		23,306		24,098
After ten years		88,883		89,861
Total debt securities		510,416		513,828
Equity securities		8,958		12,992
Total	$	519,374	$	526,820

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:

	September 30, 2014
	(Dollars in thousands)
Book value of pledged securities	$	426,786

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Net Income Per Common Share - Basic and Diluted Net Income Per Common Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share Reconciliation [Abstract]
Income available to common stockholders	$ 18,793	$ 14,491	$ 48,138	$ 40,456
Income available to common stockholders plus assumed exercises of stock options	$ 18,793	$ 14,491	$ 48,138	$ 40,456
Income available to common stockholders - Shares	15,425,920	15,287,535	15,412,611	15,252,967
Effect of stock options - Shares	369,923	307,346	361,686	263,387
Income available to common stockholders plus assumed exercises of stock options - Shares	15,795,843	15,594,881	15,774,297	15,516,354
Income available to common stockholders - Per Share Amount	$ 1.22	$ 0.94	$ 3.12	$ 2.65
Income available to common stockholders plus assumed exercises of stock options - Per Share Amount	$ 1.19	$ 0.93	$ 3.05	$ 2.61

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Segment Information - Results of Operations and Selected Financial Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net interest income (expense)	$ 46,514	$ 40,712	$ 134,032	$ 121,598
Noninterest income	24,938	23,652	72,111	67,920
Income before taxes	27,625	21,055	68,276	60,994
Total Assets	6,406,575	5,926,730	6,406,575	5,926,730	6,038,974
Operating Segments [Member] | Metropolitan Banks [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	15,267	14,043	44,426	41,997
Noninterest income	3,417	3,213	10,293	9,519
Income before taxes	10,640	9,173	25,914	26,218
Total Assets	2,189,295	2,031,194	2,189,295	2,031,194	2,079,444
Operating Segments [Member] | Community Banks [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	30,076	25,613	86,272	76,181
Noninterest income	13,163	12,750	38,402	36,141
Income before taxes	21,377	15,229	54,146	43,818
Total Assets	4,107,457	3,723,491	4,107,457	3,723,491	3,764,429
Operating Segments [Member] | Other Financial Services [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	1,594	1,491	4,538	4,786
Noninterest income	7,722	6,864	21,107	19,839
Income before taxes	3,002	2,619	8,360	8,014
Total Assets	110,778	120,476	110,778	120,476	103,656
Operating Segments [Member] | Executive, Operations & Support [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	(423)	(435)	(1,204)	(1,366)
Noninterest income	20,105	15,651	51,979	44,192
Income before taxes	11,893	8,688	29,252	24,425
Total Assets	647,076	647,336	647,076	647,336	703,294
Eliminations [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)	0		0
Noninterest income	(19,469)	(14,826)	(49,670)	(41,771)
Income before taxes	(19,287)	(14,654)	(49,396)	(41,481)
Total Assets	$ (648,031)	$ (595,767)	$ (648,031)	$ (595,767)	$ (611,849)

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Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional Amounts and Estimated Fair Values of Outstanding Derivative Positions

The notional amounts and estimated fair values of oil and gas derivative positions outstanding are presented in the following table:

	September 30, 2014
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value
	(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		288		$	935
Derivative liabilities	Barrels		(288	)		(558	)
Natural Gas
Derivative assets	MMBTUs		1,718			1,713
Derivative liabilities	MMBTUs		(1,718	)		(692	)
Total Fair Value	Included in
Derivative assets	Other assets					2,648
Derivative liabilities	Other liabilities					1,250

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 September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	(Dollars in thousands)
Derivative income	$	72	$	71	$	370	$	309

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

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

	September 30, 2014
	(Dollars in thousands)
Credit exposure	$	226

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Loans and Allowance for Loan Losses - Summary of Nonperforming and Restructured Assets (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Summary Of Nonperforming And Restructured Assets [Abstract]
Past due 90 days or more and still accruing	$ 2,004	$ 1,179	$ 1,266
Nonaccrual	17,052	14,390	15,094
Restructured	17,125	17,624	18,028
Total nonperforming and restructured loans	36,181	33,193	34,388
Other real estate owned and repossessed assets	7,016	8,386	8,428
Total nonperforming and restructured assets	$ 43,197	$ 41,579	$ 42,816
Nonperforming and restructured loans to total loans	0.96%	0.98%	1.02%
Nonperforming and restructured assets to total assets	0.67%	0.69%	0.72%

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Securities (Tables)

9 Months Ended

Sep. 30, 2014

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:

	September 30, 2014
	(Dollars in thousands)
Held for investment, at cost (fair value: $8,845)	$	8,766
Available for sale, at fair value		526,820
Total	$	535,586

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:

	September 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(Dollars in thousands)
Mortgage backed securities (1)	$	499	$	37	$	—	$	536
States and political subdivisions		8,267		42		—		8,309
Total	$	8,766	$	79	$	—	$	8,845

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:

	September 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(Dollars in thousands)
U.S. treasury and other federal agencies	$	426,901	$	1,577	$	(149	)	$	428,329
Mortgage backed securities (1)		27,535		624		(576	)		27,583
States and political subdivisions		52,553		1,911		(43	)		54,421
Other securities (2)		12,385		4,280		(178	)		16,487
Total	$	519,374	$	8,392	$	(946	)	$	526,820

(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.

	September 30, 2014
	Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	1,402	$	1,409
After one year but within five years		6,693		6,726
After five years but within ten years		504		524
After ten years		167		186
Total	$	8,766	$	8,845
Available for Sale
Contractual maturity of debt securities:
Within one year	$	65,407	$	65,570
After one year but within five years		332,820		334,299
After five years but within ten years		23,306		24,098
After ten years		88,883		89,861
Total debt securities		510,416		513,828
Equity securities		8,958		12,992
Total	$	519,374	$	526,820

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:

	September 30, 2014
	(Dollars in thousands)
Book value of pledged securities	$	426,786