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

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

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

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

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

As of ~~October 31, 2015~~April 29, 2016 there were ~~15,597,280~~15,546,253 shares of the registrant’s Common Stock outstanding.

	September 30,			December 31,			March 31,			December 31,
		2015			2014			2016			2015
	(unaudited)			(see Note 1)			(unaudited)			(see Note 1)
ASSETS
Cash and due from banks	$	163,188		$	203,545		$	169,969		$	203,364
Interest-bearing deposits with banks		1,491,873			1,710,350			1,498,356			1,394,813
Securities (fair value: $507,923 and $524,861, respectively)		507,858			524,783
Securities (fair value: $498,041 and $553,010, respectively)								497,986			552,949
Loans held for sale		12,406			9,433			7,626			13,725
Loans (net of unearned interest)		3,959,669			3,851,398			4,275,112			4,232,048
Allowance for loan losses		(40,970	)		(40,889	)		(44,571	)		(41,666	)
Loans, net of allowance for loan losses		3,918,699			3,810,509			4,230,541			4,190,382
Premises and equipment, net		120,659			121,341			127,093			126,813
Other real estate owned		7,650			7,859			3,963			7,984
Intangible assets, net		9,203			10,635			15,093			15,695
Goodwill		44,594			44,962			54,042			54,042
Accrued interest receivable and other assets		129,966			131,555			136,269			133,062
Total assets	$	6,406,096		$	6,574,972		$	6,740,938		$	6,692,829

LIABILITIES AND STOCKHOLDERS' EQUITY
Deposits:
Noninterest-bearing	$	2,244,711		$	2,411,066		$	2,413,700		$	2,409,769
Interest-bearing		3,453,880			3,493,638			3,597,172			3,563,589
Total deposits		5,698,591			5,904,704			6,010,872			5,973,358
Short-term borrowings		3,777			3,982			1,300			500
Accrued interest payable and other liabilities		30,863			30,168			34,146			31,502
Junior subordinated debentures		26,804			26,804			31,959			31,959
Total liabilities		5,760,035			5,965,658			6,078,277			6,037,319

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: 15,591,530 and 15,504,513, respectively		15,591			15,504
Common stock, $1.00 par, 20,000,000 shares authorized; shares issued and outstanding: 15,527,804 and 15,597,446, respectively								15,528			15,597
Capital surplus		100,835			96,841			103,978			102,865
Retained earnings		527,038			492,776			541,098			535,521
Accumulated other comprehensive income, net of income tax of $1,638 and $2,644, respectively		2,597			4,193
Accumulated other comprehensive income, net of income tax of $1,297 and $962, respectively								2,057			1,527
Total stockholders' equity		646,061			609,314			662,661			655,510
Total liabilities and stockholders' equity	$	6,406,096		$	6,574,972		$	6,740,938		$	6,692,829

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

	Three Months Ended					Nine Months Ended						Three Months Ended
	September 30,					September 30,						March 31,
		2015		2014			2015			2014			2016			2015
INTEREST INCOME
Loans, including fees	$	47,342	$	46,759		$	139,781		$	135,263		$	50,195		$	45,949
Securities:
Taxable		1,291		1,536			4,148			4,343			1,327			1,399
Tax-exempt		249		262			730			815			255			246
Federal funds sold		—		—			—			1
Interest-bearing deposits with banks		1,009		1,112			3,137			3,302			1,802			1,062
Total interest income		49,891		49,669			147,796			143,724			53,579			48,656
INTEREST EXPENSE
Deposits		2,522		2,658			7,602			8,180			3,080			2,538
Short-term borrowings		1		6			3			13			1			1
Long-term borrowings		—		—			—			25
Junior subordinated debentures		492		491			1,474			1,474			522			491
Total interest expense		3,015		3,155			9,079			9,692			3,603			3,030
Net interest income		46,876		46,514			138,717			134,032			49,976			45,626
Provision for loan losses		1,424		(3,115	)		4,029			1,232			4,103			1,334
Net interest income after provision for loan losses		45,452		49,629			134,688			132,800			45,873			44,292
NONINTEREST INCOME
Trust revenue		2,295		2,380			6,837			6,846			2,465			2,342
Service charges on deposits		14,910		14,226			42,574			42,044			14,710			13,352
Securities transactions (includes accumulated other comprehensive income reclassifications of $0, $0, $3,912 and $88, respectively)		—		284			7,121			819
Securities transactions (includes accumulated other comprehensive income reclassifications of $100 and $606, respectively)													100			1,729
Income from sales of loans		545		569			1,534			1,387			562			440
Insurance commissions		4,427		4,152			11,615			11,380			4,135			4,068
Cash management		1,906		1,770			5,611			5,058			2,318			1,819
Gain on sale of other assets		27		242			108			250			4			40
Other		1,214		1,315			3,935			4,327			1,323			1,506
Total noninterest income		25,324		24,938			79,335			72,111			25,617			25,296
NONINTEREST EXPENSE
Salaries and employee benefits		28,746		28,153			84,145			81,569			29,357			27,513
Occupancy, net		3,051		2,920			8,586			8,493			2,827			2,835
Depreciation		2,488		2,432			7,401			7,156			2,530			2,464
Amortization of intangible assets		444		444			1,333			1,310			581			444
Data processing services		1,132		1,183			3,428			3,538			1,215			1,117
Net expense from other real estate owned		51		173			181			317			(1,141	)		314
Marketing and business promotion		1,640		1,429			4,720			4,806			1,855			1,679
Deposit insurance		820		810			2,482			2,456			839			826
Other		7,980		9,398			24,428			26,990			8,228			7,731
Total noninterest expense		46,352		46,942			136,704			136,635			46,291			44,923
Income before taxes		24,424		27,625			77,319			68,276			25,199			24,665
Income tax expense		8,794		8,832			26,877			20,138			8,620			8,406
Net income	$	15,630	$	18,793		$	50,442		$	48,138		$	16,579		$	16,259
NET INCOME PER COMMON SHARE
Basic	$	1.01	$	1.22		$	3.25		$	3.12		$	1.07		$	1.05
Diluted	$	0.98	$	1.19		$	3.18		$	3.05		$	1.05		$	1.03
OTHER COMPREHENSIVE INCOME
Unrealized gains (losses) on securities, net of tax of $(91), $210, $(507) and $(811), respectively		145		(332	)		803			713
Reclassification adjustment for gains included in net income, net of tax of $0, $0, $1,513 and $34, respectively		—		—			(2,399	)		(54	)
Other comprehensive gain (loss), net of tax of $(91), $210, $1,006 and $(777), respectively		145		(332	)		(1,596	)		659
Unrealized gains on securities, net of tax of $(374) and $(700), respectively													591			1,111
Reclassification adjustment for gains included in net income, net of tax of $39 and $234, respectively													(61	)		(372	)
Other comprehensive gains, net of tax of $(335) and $(466), respectively													530			739
Comprehensive income	$	15,775	$	18,461		$	48,846		$	48,797		$	17,109		$	16,998

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

	Three Months Ended						Nine Months Ended						Three Months Ended
	September 30,						September 30,						March 31,
	2015			2014			2015			2014			2016			2015
COMMON STOCK
Issued at beginning of period	$	15,562		$	15,399		$	15,504		$	15,334		$	15,597		$	15,504
Shares issued		29			50			87			115			31			8
Shares acquired and canceled														(100	)		—
Issued at end of period	$	15,591		$	15,449		$	15,591		$	15,449		$	15,528		$	15,512
CAPITAL SURPLUS
Balance at beginning of period	$	99,202		$	91,447		$	96,841		$	88,803		$	102,865		$	96,841
Common stock issued		749			1,554			2,065			3,174			871			236
Tax effect of stock options		395			417			686			665			(209	)		(64	)
Stock-based compensation arrangements		489			448			1,243			1,224			451			464
Balance at end of period	$	100,835		$	93,866		$	100,835		$	93,866		$	103,978		$	97,477
RETAINED EARNINGS
Balance at beginning of period	$	517,028		$	468,761		$	492,776		$	448,953		$	535,521		$	492,776
Net income		15,630			18,793			50,442			48,138			16,579			16,259
Dividends on common stock ($0.36, $0.34, $1.04 and $0.96 per share, respectively)		(5,620	)		(5,252	)		(16,180	)		(14,789	)
Dividends on common stock ($0.36 and $0.34 per share, respectively)														(5,579	)		(5,277	)
Common stock acquired and canceled														(5,423	)		—
Balance at end of period	$	527,038		$	482,302		$	527,038		$	482,302		$	541,098		$	503,758
ACCUMULATED OTHER COMPREHENSIVE INCOME
Unrealized gains on securities:
Balance at beginning of period	$	2,452		$	4,898		$	4,193		$	3,907		$	1,527		$	4,193
Net change		145			(332	)		(1,596	)		659			530			739
Balance at end of period	$	2,597		$	4,566		$	2,597		$	4,566		$	2,057		$	4,932
Total stockholders’ equity	$	646,061		$	596,183		$	646,061		$	596,183		$	662,661		$	621,679

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

	Nine Months Ended						Three Months Ended
	September 30,						March 31,
	2015			2014			2016			2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	50,442		$	48,138		$	16,579		$	16,259
Adjustments to reconcile to net cash provided by operating activities:
Provision for loan losses		4,029			1,232			4,103			1,334
Depreciation and amortization		8,734			8,466			3,111			2,908
Net amortization of securities premiums and discounts		747			712			148			148
Realized securities gains		(7,121	)		(819	)		(100	)		(1,729	)
Gain on sales of loans		(1,534	)		(1,387	)		(562	)		(440	)
Cash receipts from the sale of loans originated for sale		132,957			114,388			40,271			36,163
Cash disbursements for loans originated for sale		(134,396	)		(115,294	)		(33,610	)		(37,393	)
Deferred income tax benefit		(1,029	)		(3,107	)		(829	)		(586	)
Gain on other assets		(76	)		(714	)
Decrease in interest receivable		8			381
Decrease in interest payable		(64	)		(366	)
(Gain)/loss on other assets								(1,222	)		207
Increase in interest receivable								(176	)		(356	)
Increase/(decrease) in interest payable								13			(20	)
Amortization of stock-based compensation arrangements		1,243			1,224			451			464
Other, net		4,797			6,957			300			5,855
Net cash provided by operating activities	$	58,737		$	59,811		$	28,477		$	22,814
INVESTING ACTIVITIES
Net decrease in federal funds sold	—				4,319
Net cash and due from banks received from acquisitions	—				174,283
Purchases of held for investment securities		(1,085	)	—
Net increase in federal funds sold							—				(1,000	)
Purchases of available for sale securities		(41,424	)		(204,979	)	—				(30,740	)
Proceeds from maturities, calls and paydowns of held for investment securities		1,344			3,882			410			311
Proceeds from maturities, calls and paydowns of available for sale securities		53,285			197,469			55,071			6,144
Proceeds from sales of available for sale securities		8,576			2,235			299			1,729
Net change in loans		(113,740	)		(266,076	)		(45,010	)		3,613
Purchases of premises, equipment and computer software		(9,535	)		(8,541	)		(2,939	)		(4,107	)
Proceeds from the sale of other assets		4,324			4,741			5,971			1,955
Net cash used in investing activities		(98,255	)		(92,667	)
Net cash provided by (used in) investing activities								13,802			(22,095	)
FINANCING ACTIVITIES
Net change in deposits		(206,113	)		19,116			37,514			(20,903	)
Net (decrease)/increase in short-term borrowings		(205	)		6,883
Paydown of long-term borrowings	—				(6,938	)
Net increase/(decrease) in short-term borrowings								800			(1,939	)
Issuance of common stock, net		2,838			3,954			693			180
Common stock acquired								(5,523	)	—
Cash dividends paid		(15,836	)		(14,289	)		(5,615	)		(5,271	)
Net cash (used in) provided by financing activities		(219,316	)		8,726
Net decrease in cash, due from banks and interest-bearing deposits		(258,834	)		(24,130	)
Net cash provided by (used in) financing activities								27,869			(27,933	)
Net increase/(decrease) in cash, due from banks and interest-bearing deposits								70,148			(27,214	)
Cash, due from banks and interest-bearing deposits at the beginning of the period		1,913,895			1,857,535			1,598,177			1,913,895
Cash, due from banks and interest-bearing deposits at the end of the period	$	1,655,061		$	1,833,405		$	1,668,325		$	1,886,681
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	$	9,142		$	10,058		$	3,591		$	3,050
Cash paid during the period for income taxes	$	26,531		$	21,128		$	1,050		$	600
Noncash investing and financing activities:
Unpaid common stock dividends declared	$	5,609		$	5,244		$	5,579		$	5,271

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

The accounting and reporting policies of BancFirst Corporation and its subsidiaries (the “Company”) conform to accounting principles generally accepted in the United State of America (U.S. GAAP) and general practice within the banking industry. A summary of significant accounting policies can be found in Note (1) to the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

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

The accompanying unaudited interim consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q. The information contained in the financial statements and footnotes included in BancFirst Corporation’s Annual Report on Form 10-K for the year ended December 31, ~~2014,~~2015, should be referred to in connection with these unaudited interim consolidated financial statements. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

The unaudited interim consolidated financial statements contained herein reflect all adjustments which are, in the opinion of management, necessary to provide a fair statement of the financial position and results of operations of the Company for the interim periods presented. All such adjustments are of a normal and recurring nature. There have been no significant changes in the accounting policies of the Company since December 31, ~~2014,~~2015, the date of the most recent annual report.

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

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.

In ~~February 2015,~~March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. ~~2015-02, “Consolidation~~2016-09, “Compensation - Stock Compensation (Topic ~~810) – Amendments~~718): Improvements to Employee Share-Based Payment Accounting.” Under ASU 2016-09 all excess tax benefits and tax deficiencies related to share-based payment awards should be recognized as income tax expense or benefit in the income statement during the period in which they occur. Previously, such amounts were recorded in the pool of excess tax benefits included in additional paid-in capital, if such pool was available. Because excess tax benefits are no longer recognized in additional paid-in capital, the assumed proceeds from applying the treasury stock method when computing earnings per share should exclude the amount of excess tax benefits that would have previously been recognized in additional paid-in capital. Additionally, excess tax benefits should be classified along with other income tax cash flows as an operating activity rather than a financing activity, as was previously the case. ASU 2016-09 also provides that an entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest (current GAAP) or account for forfeitures when they occur. ASU 2016-09 changes the threshold to qualify for equity classification (rather than as a liability) to permit withholding up to the ~~Consolidation Analysis.~~maximum statutory tax rates (rather than the minimum as was previously the case) in the applicable jurisdictions. ASU 2016-09 will be effective on January 1, 2017 and is not expected to have a significant impact on the Company’s financial statements.

In February 2016, the FASB issued ASU No. 2016-02, “Leases - (Topic 842).” ASU ~~2015-02 implements changes to both~~2016-02 requires that lessees recognize on the ~~variable interest consolidation model~~balance sheet the assets and liabilities for the voting interest consolidation model. ASU 2015-02 (i) eliminates certain criteria that must be met when determining when fees paid to a decision maker or service provider do not represent a variable interest, (ii) amends the criteria for determining whether a limited partnership is a variable interest entityrights and ~~(iii) eliminates the presumption that a general partner controls a limited partnership in the voting model.~~obligations created by leases. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, ~~2015.~~2018. Early adoption is permitted. Adoption of ASU ~~2015-02~~2016-02 is not expected to have a significant effect on the Company’s financial statements.

In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments - Overall (Subtopic 825-10).” ASU 2016-01 require all equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in the fair value recognized through net income. In addition, the amendment will require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2017. Early adoption is not permitted. Adoption of ASU 2016-01 is not expected to have a significant effect on the Company’s financial statements.

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

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

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

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

~~In January~~On October 8, 2015, ~~Council Oak Investment Corporation,~~the Company completed its acquisition of CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang and El Reno, Oklahoma. Bank of Commerce had approximately $196 million in total assets, $147 million in loans, $175 million in deposits and $22 million in equity capital. The acquisition was accounted for under the acquisition method and the Company acquired 100% of the voting interest. Bank of Commerce operated as a ~~wholly-owned~~ subsidiary of BancFirst ~~recognized~~Corporation until it was merged into BancFirst on November 13, 2015. As a ~~pretax gain~~result of the acquisition, the Company recorded a core deposit intangible of approximately ~~$1.7~~$7.1 million ~~on one~~and goodwill of ~~its investments.~~

~~In June 2015, Council Oak Partners, LLC, a wholly-owned subsidiary~~approximately $9.4 million. The effect of this acquisition was included in the consolidated financial statements of the Company ~~recognized~~from the date of acquisition forward. The acquisition did not have a ~~pretax gain~~material effect on the Company’s consolidated financial statements. The acquisition of ~~approximately $5.3 million on one~~CSB Bancshares Inc. and its subsidiary bank, Bank of ~~its investments.~~Commerce will complement our community banking strategy by adding two communities to our banking network throughout Oklahoma.

~~See Note 12 for developments subsequent to September 30, 2015.~~During the quarter ended March 31, 2016, the Company had gains on the sale of other real estate owned totaling $1.2 million that is included in net expense from other real estate owned on the consolidated statements of comprehensive income.

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

	September 30, 2015		December 31, 2014		March 31, 2016		December 31, 2015
	(Dollars in thousands)				(Dollars in thousands)
Held for investment, at cost (fair value: $8,398 and $8,671, respectively)	$	8,333	$	8,593
Held for investment, at cost (fair value: $8,434 and $8,850, respectively)					$	8,379	$	8,789
Available for sale, at fair value		499,525		516,190		489,607		544,160
Total	$	507,858	$	524,783	$	497,986	$	552,949

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


	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
September 30, 2015	(Dollars in thousands)
March 31, 2016									(Dollars in thousands)
Mortgage backed securities (1)	$	382	$	30	$	—	$	412	$	323	$	25	$	—	$	348
States and political subdivisions		7,951		35		—		7,986		7,556		30		—		7,586
Other securities										500		—		—		500
Total	$	8,333	$	65	$	—	$	8,398	$	8,379	$	55	$	—	$	8,434
December 31, 2014
December 31, 2015
Mortgage backed securities (1)	$	471	$	34	$	—	$	505	$	347	$	25	$	—	$	372
States and political subdivisions		8,122		44		—		8,166		7,942		36		—		7,978
Other securities										500		—		—		500
Total	$	8,593	$	78	$	—	$	8,671	$	8,789	$	61	$	—	$	8,850

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


	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
September 30, 2015	(Dollars in thousands)
March 31, 2016										(Dollars in thousands)
U.S. treasuries	$	279,331	$	1,966	$	—		$	281,297	$	279,020	$	1,695	$	—		$	280,715
U.S. federal agencies		133,670		870		(54	)		134,486		128,391		539		(76	)		128,854
Mortgage backed securities (1)		22,587		500		(557	)		22,530		21,444		415		(550	)		21,309
States and political subdivisions		49,815		1,552		(41	)		51,326		47,904		1,473		(85	)		49,292
Other securities (2)		9,887		197		(198	)		9,886		9,494		125		(182	)		9,437
Total	$	495,290	$	5,085	$	(850	)	$	499,525	$	486,253	$	4,247	$	(893	)	$	489,607
December 31, 2014
December 31, 2015
U.S. treasuries	$	248,767	$	404	$	(178	)	$	248,993	$	328,965	$	776	$	(45	)	$	329,696
U.S. federal agencies		171,641		983		(175	)		172,449		131,522		527		(153	)		131,896
Mortgage backed securities (1)		26,441		602		(586	)		26,457		21,973		425		(543	)		21,855
States and political subdivisions		51,706		1,716		(49	)		53,373		49,521		1,447		(48	)		50,920
Other securities (2)		10,798		4,252		(132	)		14,918		9,689		249		(145	)		9,793
Total	$	509,353	$	7,957	$	(1,120	)	$	516,190	$	541,670	$	3,424	$	(934	)	$	544,160

~~The unrealized~~Realized gains decreased in 2015 primarily due to the reclassification of an unrealized gain on one investment of $3.3 million from other comprehensive income to a realized gain by Council Oak Partners, LLC, a wholly-owned subsidiary of the Company. The realized gain isare reported as securities transactions within the noninterest income section of the consolidated statement of comprehensive income. In January 2015, Council Oak Investment Corporation, a wholly-owned subsidiary of BancFirst, recognized a pretax gain of approximately $1.7 million on one of its investments.

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, 2015				December 31, 2014				March 31, 2016				December 31, 2015
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
	(Dollars in thousands)								(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year	$	4,978	$	4,985	$	1,451	$	1,456	$	4,983	$	4,990	$	5,168	$	5,174
After one year but within five years		3,003		3,031		6,603		6,642		2,594		2,617		2,800		2,829
After five years but within ten years		316		343		380		396		778		802		795		319
After ten years		36		39		159		177		24		25		26		528
Total	$	8,333	$	8,398	$	8,593	$	8,671	$	8,379	$	8,434	$	8,789	$	8,850
Available for Sale
Contractual maturity of debt securities:
Within one year	$	132,557	$	132,794	$	41,772	$	41,870	$	224,616	$	224,814	$	272,820	$	272,779
After one year but within five years		266,217		269,077		350,975		352,044		175,071		177,377		178,617		180,145
After five years but within ten years		12,493		13,068		21,990		22,717		7,794		8,359		8,483		9,075
After ten years		77,590		78,155		87,252		88,132		72,746		73,052		75,522		75,853
Total debt securities		488,857		493,094		501,989		504,763		480,227		483,602		535,442		537,852
Equity securities		6,433		6,431		7,364		11,427		6,026		6,005		6,228		6,308
Total	$	495,290	$	499,525	$	509,353	$	516,190	$	486,253	$	489,607	$	541,670	$	544,160

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, 2015					December 31, 2014					March 31, 2016					December 31, 2015
	Amount		Percent			Amount		Percent			Amount		Percent			Amount		Percent
	(Dollars in thousands)										(Dollars in thousands)
Commercial and financial:
Commercial and industrial	$	759,935		19.19	%	$	745,106		19.35	%	$	790,156		18.48	%	$	795,803		18.80	%
Oil & gas production and equipment		68,943		1.74			104,940		2.72			86,524		2.02			87,304		2.06
Agriculture		112,675		2.84			132,830		3.45			149,442		3.50			150,620		3.56
State and political subdivisions:
Taxable		17,674		0.45			20,431		0.53			17,628		0.41			17,605		0.42
Tax-exempt		28,855		0.73			20,952		0.54			36,177		0.85			33,575		0.79
Real estate:
Construction		382,883		9.67			356,621		9.26			401,330		9.39			403,664		9.54
Farmland		163,989		4.14			149,507		3.88			189,934		4.44			184,707		4.36
One to four family residences		797,974		20.15			766,362		19.90			825,357		19.31			821,251		19.41
Multifamily residential properties		63,016		1.59			66,766		1.73			62,189		1.45			65,477		1.55
Commercial		1,250,673		31.59			1,191,477		30.94			1,406,204		32.89			1,356,430		32.05
Consumer		281,800		7.12			267,179		6.94			276,463		6.47			283,636		6.70
Other (not classified above)		31,252		0.79			29,227		0.76			33,708		0.79			31,976		0.76
Total loans	$	3,959,669		100.00	%	$	3,851,398		100.00	%	$	4,275,112		100.00	%	$	4,232,048		100.00	%

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

Accounting policies related to appraisals, nonaccruals and charge-offs are disclosed in Note (1) to the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

	September 30,		December 31,		March 31,		December 31,
	2015		2014		2016		2015
	(Dollars in thousands)				(Dollars in thousands)
Past due 90 days or more and still accruing	$	2,061	$	1,135	$	1,099	$	1,841
Nonaccrual		30,321		16,410		31,040		30,096
Restructured		15,386		16,515		533		15,143
Total nonperforming and restructured loans		47,768		34,060		32,672		47,080
Other real estate owned and repossessed assets		7,863		8,079		4,245		8,214
Total nonperforming and restructured assets	$	55,631	$	42,139	$	36,917	$	55,294

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 ~~$1.5 million~~$513,000 for the ~~nine~~three months ended ~~September 30, 2015~~March 31, 2016 and approximately ~~$839,000~~$310,000 for the ~~nine~~three months ended ~~September 30, 2014.~~March 31, 2015.

Restructured loans consisted primarily of one relationship restructured in prior periods to defer certain principal payments. ~~The~~This relationship was ~~evaluated by management~~re-evaluated and ~~determined~~removed from restructured loans in 2016 due to ~~be well collateralized. Additionally, none~~sustained improvement in financial condition, performance and the commercially reasonable nature 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.~~its structure. 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, 2015		December 31, 2014		March 31, 2016		December 31, 2015
	(Dollars in thousands)				(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	183	$	296	$	372	$	261
Non-residential real estate other		4,878		5,126		3,952		3,957
Residential real estate permanent mortgage		517		681		800		656
Residential real estate all other		1,222		1,796		4,548		1,833
Commercial and financial:
Non-consumer non-real estate		13,458		1,556		8,283		10,159
Consumer non-real estate		198		250		301		312
Other loans		5,761		1,659		9,343		9,381
Acquired loans		4,104		5,046		3,441		3,537
Total	$	30,321	$	16,410	$	31,040	$	30,096

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

	Age Analysis of Past Due Loans															Age Analysis of Past Due Loans
	30-59 Days Past Due		60-89 Days Past Due		90 Days and Greater		Total Past Due Loans		Current Loans		Total Loans		Accruing Loans 90 Days or More Past Due			30-59 Days Past Due		60-89 Days Past Due		90 Days and Greater		Total Past Due Loans		Current Loans		Total Loans		Accruing Loans 90 Days or More Past Due
	(Dollars in thousands)															(Dollars in thousands)
As of September 30, 2015
As of March 31, 2016
Real estate:
Non-residential real estate owner occupied	$	223	$	391	$	99	$	713	$	492,565	$	493,278	$	99		$	1,130	$	17	$	254	$	1,401	$	510,687	$	512,088	$	—
Non-residential real estate other		2,035		61		1,162		3,258		1,033,981		1,037,239		317			3,563		—		285		3,848		1,135,560		1,139,408		238
Residential real estate permanent mortgage		1,108		328		1,028		2,464		322,673		325,137		788			3,076		632		1,003		4,711		325,107		329,818		445
Residential real estate all other		1,279		89		967		2,335		660,700		663,035		420			5,652		339		775		6,766		693,107		699,873		113
Commercial and financial:
Non-consumer non-real estate		2,690		949		209		3,848		930,554		934,402		22			2,825		130		487		3,442		975,485		978,927		92
Consumer non-real estate		1,700		616		297		2,613		265,755		268,368		264			1,862		676		344		2,882		261,565		264,447		168
Other loans		562		174		5,211		5,947		155,379		161,326		65			1,023		347		7,934		9,304		153,567		162,871		12
Acquired loans		743		548		1,313		2,604		74,280		76,884		86			1,252		419		615		2,286		185,394		187,680		31
Total	$	10,340	$	3,156	$	10,286	$	23,782	$	3,935,887	$	3,959,669	$	2,061	��	$	20,383	$	2,560	$	11,697	$	34,640	$	4,240,472	$	4,275,112	$	1,099
As of December 31, 2014
As of December 31, 2015
Real estate:
Non-residential real estate owner occupied	$	635	$	—	$	269	$	904	$	482,731	$	483,635	$	70		$	441	$	179	$	183	$	803	$	502,094	$	502,897	$	—
Non-residential real estate other		377		317		825		1,519		952,484		954,003		—			1,149		108		568		1,825		1,108,935		1,110,760		521
Residential real estate permanent mortgage		2,010		758		544		3,312		304,267		307,579		172			2,840		636		648		4,124		328,477		332,601		493
Residential real estate all other		1,820		194		1,488		3,502		633,586		637,088		387			2,842		609		824		4,275		672,414		676,689		193
Commercial and financial:
Non-consumer non-real estate		841		71		793		1,705		965,002		966,707		24			2,278		161		187		2,626		982,136		984,762		152
Consumer non-real estate		1,914		711		330		2,955		244,810		247,765		215			2,237		772		349		3,358		265,511		268,869		278
Other loans		1,858		916		741		3,515		149,469		152,984		—			3,565		295		1,761		5,621		156,995		162,616		132
Acquired loans		1,815		997		1,304		4,116		97,521		101,637		267			1,052		71		918		2,041		190,813		192,854		72
Total	$	11,270	$	3,964	$	6,294	$	21,528	$	3,829,870	$	3,851,398	$	1,135		$	16,404	$	2,831	$	5,438	$	24,673	$	4,207,375	$	4,232,048	$	1,841

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 Company offers Small Business Administration (“SBA”) guaranteed loans through its Commercial Capital division to expand access to capital for creditworthy small businesses at reasonable terms. The SBA does not provide funds to the borrower, instead, the SBA guarantees a portion of the lender’s loan, which is conditional based on the lender following certain requirements established by the SBA. Typically, if the borrower defaults the SBA pays off the guaranteed portion of the remaining loan balance. However, if any of these requirements are not followed, the SBA can either deny a request for purchase of its guaranteed portion, or reduce the amount of its purchase by the amount of any loss. Because of the volume of SBA guaranteed loans, from time to time the Company may be in negotiation with the SBA regarding the amount of a guarantee that is collectable. If a request is denied, the Company could be required to record additional charge-offs of the previously guaranteed portion of the loan. As of the filing date, collectability on the guarantee for an SBA loan was uncertain; however, the amount of loss, if any, was not estimable.

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								Impaired Loans
	Unpaid Principal Balance		Recorded Investment with Allowance		Related Allowance		Average Recorded Investment		Unpaid Principal Balance		Recorded Investment with Allowance		Related Allowance		Average Recorded Investment
	(Dollars in thousands)								(Dollars in thousands)
As of September 30, 2015
As of March 31, 2016
Real estate:
Non-residential real estate owner occupied	$	495	$	410	$	15	$	374	$	615	$	487	$	15	$	418
Non-residential real estate other		22,982		19,906		758		19,969		6,207		4,190		157		15,123
Residential real estate permanent mortgage		1,676		1,456		68		1,126		1,498		1,305		86		1,276
Residential real estate all other		2,047		1,806		177		1,892		5,101		4,823		1,382		2,781
Commercial and financial:
Non-consumer non-real estate		15,940		13,481		2,555		16,393		12,762		8,375		2,017		9,190
Consumer non-real estate		657		636		122		596		652		609		120		745
Other loans		5,902		5,826		157		5,882		10,705		9,355		459		9,892
Acquired loans		7,373		4,890		—		5,085		6,276		3,745		—		3,977
Total	$	57,072	$	48,411	$	3,852	$	51,317	$	43,816	$	32,889	$	4,236	$	43,402

As of December 31, 2014
As of December 31, 2015
Real estate:
Non-residential real estate owner occupied	$	521	$	448	$	15	$	453	$	507	$	383	$	14	$	446
Non-residential real estate other		23,154		21,164		1,364		21,522		21,068		19,052		357		19,655
Residential real estate permanent mortgage		1,095		880		85		1,042		1,401		1,209		81		1,125
Residential real estate all other		2,480		2,270		299		2,273		2,498		2,235		242		1,958
Commercial and financial:
Non-consumer non-real estate		1,895		1,580		431		1,646		13,897		10,312		2,062		11,786
Consumer non-real estate		664		648		138		602		738		715		181		652
Other loans		2,101		1,659		228		1,512		10,722		9,513		331		10,335
Acquired loans		10,933		7,708		—		8,082		6,295		4,248		—		4,564
Total	$	42,843	$	36,357	$	2,560	$	37,132	$	57,126	$	47,667	$	3,268	$	50,521

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

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

The general characteristics of the risk grades are disclosed in Note (5) to the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

	Internal Loan Grading												Internal Loan Grading
	Grade												Grade
		1		2		3		4		5	Total			1		2		3		4		5	Total
	(Dollars in thousands)												(Dollars in thousands)
As of September 30, 2015
As of March 31, 2016
Real estate:
Non-residential real estate owner occupied	$	408,259	$	78,173	$	6,663	$	183	$	—	$	493,278	$	423,003	$	77,243	$	11,470	$	372	$	—	$	512,088
Non-residential real estate other		872,939		129,399		30,023		4,878		—		1,037,239		966,113		163,932		5,379		3,984		—		1,139,408
Residential real estate permanent mortgage		288,436		29,520		6,393		788		—		325,137		290,540		30,941		7,043		1,294		—		329,818
Residential real estate all other		544,388		106,840		10,200		1,607		—		663,035		574,683		112,736		7,649		4,805		—		699,873
Commercial and financial:
Non-consumer non-real estate		775,900		133,200		11,804		13,498		—		934,402		809,004		136,143		25,513		8,267		—		978,927
Consumer non-real estate		252,581		13,583		1,690		512		2		268,368		247,419		14,419		2,099		510		—		264,447
Other loans		153,197		4,696		1,027		2,406		—		161,326		153,486		5,629		1,336		2,420		—		162,871
Acquired loans		53,350		10,347		8,727		4,311		149		76,884		159,016		13,924		10,991		3,674		75		187,680
Total	$	3,349,050	$	505,758	$	76,527	$	28,183	$	151	$	3,959,669	$	3,623,264	$	554,967	$	71,480	$	25,326	$	75	$	4,275,112

As of December 31, 2014
As of December 31, 2015
Real estate:
Non-residential real estate owner occupied	$	402,706	$	75,555	$	5,008	$	366	$	—	$	483,635	$	417,529	$	76,749	$	8,304	$	315	$	—	$	502,897
Non-residential real estate other		795,209		133,542		20,126		5,126		—		954,003		945,993		156,159		4,580		4,028		—		1,110,760
Residential real estate permanent mortgage		272,411		27,855		6,369		944		—		307,579		295,265		29,793		6,315		1,228		—		332,601
Residential real estate all other		529,555		99,214		6,146		2,173		—		637,088		554,007		111,879		9,109		1,694		—		676,689
Commercial and financial:
Non-consumer non-real estate		821,094		117,457		26,550		1,606		—		966,707		821,394		140,384		12,687		10,297		—		984,762
Consumer non-real estate		233,424		12,229		1,548		564		—		247,765		251,994		14,433		1,779		662		1		268,869
Other loans		147,758		4,261		601		173		191		152,984		153,416		5,851		872		2,477		—		162,616
Acquired loans		46,465		36,951		12,651		5,206		364		101,637		165,305		12,566		11,049		3,858		76		192,854
Total	$	3,248,622	$	507,064	$	78,999	$	16,158	$	555	$	3,851,398	$	3,604,903	$	547,814	$	54,695	$	24,559	$	77	$	4,232,048

The allowance for loan losses (“ALL”) methodology is disclosed in Note (5) to the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

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															ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period		Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations		Balance at end of period
	(Dollars in thousands)															(Dollars in thousands)
Three Months Ended September 30, 2015
Three Months Ended March 31, 2016
Real estate:
Non-residential real estate owner occupied	$	4,503	$	—		$	—	$	—		$	36		$	4,539	$	4,661	$	(1	)	$	—	$	(1	)	$	172	$	4,832
Non-residential real estate other		9,880		(708	)		1		(707	)		814			9,987		9,921		(1	)		1		—			290		10,211
Residential real estate permanent mortgage		3,110		(28	)		15		(13	)		(26	)		3,071		3,148		(50	)		17		(33	)		49		3,164
Residential real estate all other		6,485		(48	)		4		(44	)		168			6,609		6,725		(67	)		4		(63	)		1,327		7,989
Commercial and financial:
Non-consumer non-real estate		13,713		(2,180	)		38		(2,142	)		86			11,657		11,754		(803	)		11		(792	)		1,851		12,813
Consumer non-real estate		2,499		(152	)		35		(117	)		160			2,542		2,642		(221	)		38		(183	)		94		2,553
Other loans		2,431		(20	)		6		(14	)		134			2,551		2,648		(133	)		6		(127	)		269		2,790
Acquired loans		—		(38	)		—		(38	)		52			14		167		(4	)		5		1			51		219
Total	$	42,621	$	(3,174	)	$	99	$	(3,075	)	$	1,424		$	40,970	$	41,666	$	(1,280	)	$	82	$	(1,198	)	$	4,103	$	44,571

Nine Months Ended September 30, 2015
Real estate:
Non-residential real estate owner occupied	$	4,406	$	(1	)	$	1	$	—		$	133		$	4,539
Non-residential real estate other		9,616		(708	)		2		(706	)		1,077			9,987
Residential real estate permanent mortgage		2,948		(124	)		29		(95	)		218			3,071
Residential real estate all other		6,269		(123	)		13		(110	)		450			6,609
Commercial and financial:
Non-consumer non-real estate		12,771		(2,349	)		76		(2,273	)		1,159			11,657
Consumer non-real estate		2,404		(382	)		90		(292	)		430			2,542
Other loans		2,359		(283	)		15		(268	)		460			2,551
Acquired loans		116		(232	)		28		(204	)		102			14
Total	$	40,889	$	(4,202	)	$	254	$	(3,948	)	$	4,029		$	40,970

	ALL															ALL
	Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations			Balance at end of period		Balance at beginning of period		Charge- offs			Recoveries		Net charge-offs			Provisions charged to operations		Balance at end of period
	(Dollars in thousands)															(Dollars in thousands)
Three Months Ended September 30, 2014
Three Months Ended March 31, 2015
Real estate:
Non-residential real estate owner occupied	$	5,241	$	—		$	20	$	20		$	(798	)	$	4,463	$	4,406	$	(1	)	$	1	$	—		$	55	$	4,461
Non-residential real estate other		11,238		(29	)		45		16			(1,784	)		9,470		9,616		—			—		—			282		9,898
Residential real estate permanent mortgage		3,310		(12	)		18		6			(464	)		2,852		2,948		(40	)		9		(31	)		67		2,984
Residential real estate all other		6,815		(23	)		9		(14	)		(649	)		6,152		6,269		(68	)		5		(63	)		372		6,578
Commercial and financial:
Non-consumer non-real estate		11,967		(391	)		21		(370	)		412			12,009		12,771		(153	)		31		(122	)		419		13,068
Consumer non-real estate		2,645		(177	)		58		(119	)		(132	)		2,394		2,404		(127	)		15		(112	)		35		2,327
Other loans		1,993		(93	)		8		(85	)		219			2,127		2,359		(213	)		9		(204	)		86		2,241
Acquired loans		88		(201	)		32		(169	)		81			—		116		(160	)		26		(134	)		18		—
Total	$	43,297	$	(926	)	$	211	$	(715	)	$	(3,115	)	$	39,467	$	40,889	$	(762	)	$	96	$	(666	)	$	1,334	$	41,557

Nine Months Ended September 30, 2014
Real estate:
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
Commercial and financial:
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

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								ALL
	September 30, 2015				December 31, 2014				March 31, 2016				December 31, 2015

	Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment		Individually evaluated for impairment		Collectively evaluated for impairment
	(Dollars in thousands)								(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied.	$	257	$	4,282	$	202	$	4,204	$	444	$	4,388	$	323	$	4,338
Non-residential real estate other		1,321		8,666		1,518		8,098		351		9,860		323		9,598
Residential real estate permanent mortgage		380		2,691		407		2,541		438		2,726		399		2,749
Residential real estate all other		865		5,744		743		5,526		1,926		6,063		839		5,886
Commercial and financial:
Non-consumer non-real estate		3,712		7,945		4,671		8,100		4,539		8,274		3,365		8,389
Consumer non-real estate		352		2,190		372		2,032		396		2,157		445		2,197
Other loans		52		2,499		214		2,145		413		2,377		291		2,357
Acquired loans		—		14		—		116		—		219		—		167
Total	$	6,939	$	34,031	$	8,127	$	32,762	$	8,507	$	36,064	$	5,985	$	35,681

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												Loans
	September 30, 2015						December 31, 2014						March 31, 2016						December 31, 2015
	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		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)												(Dollars in thousands)
Real estate:
Non-residential real estate owner occupied	$	6,846	$	486,432	$	—	$	5,374	$	478,261	$	—	$	11,843	$	500,245	$	—	$	8,619	$	494,278	$	—
Non-residential real estate other		34,900		1,002,339		—		25,251		928,752		—		9,363		1,130,045		—		8,608		1,102,152		—
Residential real estate permanent mortgage		7,181		317,956		—		7,313		300,266		—		8,337		321,481		—		7,543		325,058		—
Residential real estate all other		11,807		651,228		—		8,319		628,769		—		12,453		687,420		—		10,803		665,886		—
Commercial and financial:
Non-consumer non-real estate		25,302		909,100		—		28,156		938,551		—		33,780		945,147		—		22,983		961,779		—
Consumer non-real estate		2,199		266,169		—		2,112		245,653		—		2,596		261,851		—		2,416		266,453		—
Other loans		166		161,160		—		233		152,751		—		2,216		160,655		—		2,323		160,293		—
Acquired loans		—		63,697		13,187		—		83,416		18,221		—		172,940		14,740		—		177,871		14,983
Total	$	88,401	$	3,858,081	$	13,187	$	76,758	$	3,756,419	$	18,221	$	80,588	$	4,179,784	$	14,740	$	63,295	$	4,153,770	$	14,983

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,				Three Months Ended March 31,
	2015		2014		2016		2015
	(Dollars in thousands)				(Dollars in thousands)
Other real estate owned	$	3,155	$	2,073	$	344	$	260
Repossessed assets		794		955		404		220
Total	$	3,949	$	3,028	$	748	$	480

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in thousands)							(Dollars in thousands)
As of September 30, 2015
As of March 31, 2016
Core deposit intangibles	$	13,198	$	(7,074	)	$	6,124	$	18,659	$	(6,402	)	$	12,257
Customer relationship intangibles		5,699		(2,970	)		2,729		5,699		(3,151	)		2,548
Mortgage servicing intangibles		570		(220	)		350		525		(237	)		288
Total	$	19,467	$	(10,264	)	$	9,203	$	24,883	$	(9,790	)	$	15,093
As of December 31, 2014
As of December 31, 2015
Core deposit intangibles	$	13,198	$	(6,013	)	$	7,185	$	20,333	$	(7,586	)	$	12,747
Customer relationship intangibles		5,699		(2,699	)		3,000		5,699		(3,061	)		2,638
Mortgage servicing intangibles		643		(193	)		450		538		(228	)		310
Total	$	19,540	$	(8,905	)	$	10,635	$	26,570	$	(10,875	)	$	15,695

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

Additional information for intangible assets can be found in Note (7) to the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

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, 2015, 29,485~~March 31, 2016, 5,735 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, 2015~~March 31, 2016 will become exercisable through the year ~~2022.~~2023. 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, 2015, 20,000~~March 31, 2016, 10,000 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, 2015~~March 31, 2016 will become exercisable through the year ~~2018.~~2020. The option price must be no less than 100% of the fair value of the stock relating to such option at the date of grant.

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

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

Wgtd. Avg.

Wgtd. Avg.

Remaining

Aggregate

Exercise

Contractual

Intrinsic

Options

Price

Term

Value

(Dollars in thousands, except per share data)

Nine Months Ended September 30, 2015

Outstanding at December 31, 2014

1,029,657

$
36.55

Options granted

108,000

59.84

Options exercised

(86,482
)

24.65

Options canceled, forfeited, or expired

(22,500
)

37.14

Outstanding at September 30, 2015

1,028,675

39.98

8.82

$
23,782

Exercisable at September 30, 2015

474,500

32.17

5.28 Yr

$
14,677

						Wgtd. Avg.
				Wgtd. Avg.		Remaining	Aggregate
				Exercise		Contractual	Intrinsic
	Options			Price		Term	Value
	(Dollars in thousands, except option data)
Three Months Ended March 31, 2016
Outstanding at December 31, 2015		1,018,149		$	40.69
Options granted		15,000			55.15
Options exercised		(29,600	)		29.56
Options canceled, forfeited, or expired		(5,000	)		41.02
Outstanding at March 31, 2016		998,549			41.24	8.83 Yrs	$	15,767
Exercisable at March 31, 2016		486,874			33.47	5.55 Yrs	$	11,471

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,				Three Months Ended March 31,
	2015		2014		2015		2014		2016		2015
	(Dollars in thousands)								(Dollars in thousands except per share data)
Weighted average grant-date fair value per share of options granted	$	11.89	$	12.75	$	11.55	$	12.57	$	11.47	$	11.00
Total intrinsic value of options exercised		1,129		1,560		3,258		3,606		779		237
Cash received from options exercised		779		1,605		2,132		3,247		875		244
Tax benefit realized from options exercised		437		604		1,260		1,395		301		92

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,				Three Months Ended March 31,
	2015		2014		2015		2014		2016		2015
	(Dollars in thousands)								(Dollars in thousands)
Stock-based compensation expense	$	489	$	448	$	1,243	$	1,224	$	451	$	464
Tax benefit		189		173		481		473		174		180
Stock-based compensation expense, net of tax	$	300	$	275	$	762	$	751	$	277	$	284

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

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

	Nine Months Ended September 30,		Three Months Ended March 31,
	2015	2014	2016	2015
Risk-free interest rate	1.83 to 2.26%	2.50 to 2.54%	1.91 to 2.02%	1.83 to 1.96%
Dividend yield	2.00%	2.00%	2.00%	2.00%
Stock price volatility	18.23 to 19.65%	18.62 to 18.98%	20.41 to 20.64%	18.23 to 18.50%
Expected term	10 Yrs	10 Yrs	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.

In May 1999, the Company adopted the BancFirst Corporation Directors’ Deferred Stock Compensation Plan (the “BancFirst Deferred Stock Compensation Plan”). The Company amended the BancFirst Deferred Stock Compensation Plan to increase the number of shares to be issued under the plan to 91,110 shares in May 2014. Under the plan, directors and members of the community advisory boards of the Company and its subsidiaries may defer up to 100% of their board fees. They are credited for each deferral with a number of stock units based on the current market price of the Company’s stock, which accumulate in an account until such time as the director or community board member terminates serving as a board member. Shares of common stock of the Company are then distributed to the terminating director or community board member based upon the number of stock units accumulated in his or her account. The number of shares of common stock distributed from the BancFirst Deferred Stock Compensation Plan was 758 during the three months ended March 31, 2016.

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~~within the limitations of a Board approved ~~by the Company’s Executive Committee.~~share buyback program.

	Nine Months Ended September 30,				Three Months Ended March 31,
	2015		2014		2016		2015
Number of shares repurchased		—		—		100,000		—
Average price of shares repurchased		—		—	$	55.23		—
Shares remaining to be repurchased		194,723		194,723		66,276		194,723

The Company and BancFirst are subject to risk-based capital guidelines issued by the Board of Governors of the Federal Reserve System and the Federal Deposit Insurance Corporation (“FDIC”). These guidelines are used to evaluate capital adequacy and involve both quantitative and qualitative evaluations of the Company’s and BancFirst’s assets, liabilities and certain off-balance-sheet items calculated under regulatory practices. Failure to meet the minimum capital requirements can initiate certain mandatory or discretionary actions by the regulatory agencies that could have a direct material effect on the Company’s financial statements. Management believes that as of ~~September 30, 2015,~~March 31, 2016, the Company and BancFirst met all capital adequacy requirements to which they are subject. The actual and required capital amounts and ratios are shown in the following table:

						Required					To Be Well									Required								To Be Well
						For Capital					Capitalized Under									For Capital				With				Capitalized Under
						Adequacy					Prompt Corrective									Adequacy				Capital Conservation				Prompt Corrective
	Actual					Purposes					Action Provisions					Actual				Purposes				Buffer				Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
	(Dollars in thousands)															(Dollars in thousands)
As of September 30, 2015:
As of March 31, 2016:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	662,299		15.27	%	$	346,902		8.00	%	N/A		N/A			$	673,104		14.40%	$	373,849		8.00%	$	403,056		8.625%	N/A		N/A
BancFirst		606,989		14.08	%		344,890		8.00	%	$	431,113		10.00	%		616,209		13.20%		373,346		8.00%		402,513		8.625%	$	466,682		10.00%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	595,329		13.73	%	$	195,133		4.50	%	N/A		N/A			$	597,533		12.79%	$	210,290		4.50%	$	239,497		5.125%	N/A		N/A
BancFirst		546,019		12.67	%		194,001		4.50	%	$	280,223		6.50	%		551,638		11.82%		210,007		4.50%		239,174		5.125%	$	303,343		6.50%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	621,329		14.33	%	$	260,177		6.00	%	N/A		N/A			$	628,533		13.45%	$	280,387		6.00%	$	309,594		6.625%	N/A		N/A
BancFirst		566,019		13.13	%		258,668		6.00	%	$	344,890		8.00	%		571,638		12.25%		280,009		6.00%		309,177		6.625%	$	373,346		8.00%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	621,329		9.77	%	$	256,245		4.00	%	N/A		N/A			$	628,533		9.51%	$	264,328		4.00%	N/A		N/A		N/A		N/A
BancFirst		566,019		8.91	%		255,669		4.00	%	$	319,586		5.00	%		571,638		8.68%		263,405		4.00%	N/A		N/A		$	329,256		5.00%

As of ~~September 30, 2015,~~March 31, 2016, the most recent notification from the Federal Reserve Bank of Kansas City and the FDIC categorized BancFirst as “well capitalized” under the regulatory framework from prompt corrective action. The Company’s trust preferred securities have continued to be included in Tier 1 capital as the Company’s total assets do not exceed $15 billion. There are no conditions or events since the most recent notifications of BancFirst’s capital category that management believes would materially change its category under capital requirements existing as of the report date.

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

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

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

requirements. The implementation of the capital conservation buffer ~~will begin~~began on January 1, 2016 at the 0.625% level and will 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, 2015,~~March 31, 2016, 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.

Basic and diluted net income per common share based on weighted-average shares outstanding are calculated as follows:

	Income (Numerator)		Shares (Denominator)		Per Share Amount		Income (Numerator)		Shares (Denominator)		Per Share Amount
	(Dollars in thousands, except per share data)						(Dollars in thousands, except per share data)
Three Months Ended September 30, 2015
Three Months Ended March 31, 2016
Basic
Income available to common stockholders	$	15,630		15,581,593	$	1.01	$	16,579		15,534,416	$	1.07
Effect of stock options		—		324,531
Dilutive effect of stock options								—		281,955
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	15,630		15,906,124	$	0.98	$	16,579		15,816,371	$	1.05
Three Months Ended September 30, 2014
Three Months Ended March 31, 2015
Basic
Income available to common stockholders	$	18,793		15,425,920	$	1.22	$	16,259		15,507,346	$	1.05
Effect of stock options		—		369,923
Dilutive effect of stock options								—		331,202
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	18,793		15,795,843	$	1.19	$	16,259		15,838,548	$	1.03
Nine Months Ended September 30, 2015
Basic
Income available to common stockholders	$	50,442		15,542,027	$	3.25
Effect of stock options		—		329,964
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	50,442		15,871,991	$	3.18
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

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:

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:

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 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 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.

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.

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

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

	Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Fair Value
	(Dollars in thousands)								(Dollars in thousands)
September 30, 2015
March 31, 2016
Securities available for sale:
U.S. Treasury	$	281,297	$	—	$	—	$	281,297	$	280,715	$	—	$	—	$	280,715
U.S. federal agencies		—		134,486		—		134,486		—		128,854		—		128,854
Mortgage-backed securities		—		7,073		15,457		22,530		—		6,493		14,816		21,309
States and political subdivisions		—		51,326		—		51,326		—		49,292		—		49,292
Other securities		—		3,455		6,431		9,886		—		3,432		6,005		9,437
Derivative assets		—		2,357		—		2,357		—		1,210		—		1,210
Derivative liabilities		—		1,335		—		1,335		—		605		—		605
Loans held for sale		—		12,406		—		12,406		—		7,626		—		7,626
Mortgage servicing intangibles		—		—		350		350

December 31, 2014
December 31, 2015
Securities available for sale:
U.S. Treasury	$	248,993	$	—	$	—	$	248,993	$	329,696	$	—	$	—	$	329,696
U.S. federal agencies		—		172,449		—		172,449		—		131,896		—		131,896
Mortgage-backed securities		—		9,425		17,032		26,457		—		7,039		14,816		21,855
States and political subdivisions		—		53,373		—		53,373		—		50,920		—		50,920
Other securities		—		3,491		11,427		14,918		—		3,485		6,308		9,793
Derivative assets		—		6,124		—		6,124		—		1,946		—		1,946
Derivative liabilities		—		4,756		—		4,756		—		989		—		989
Loans held for sale		—		9,433		—		9,433		—		13,725		—		13,725
Mortgage servicing intangibles		—		—		450		450

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

	Nine Months Ended September 30						Three Months Ended March 31,
	2015			2014			2016			2015
	(Dollars in thousands)						(Dollars in thousands)
Balance at the beginning of the year	$	28,909		$	32,002		$	21,124		$	28,459
Purchases, issuances and settlements		(1,070	)		(1,518	)		(4	)		(744	)
Sales		(8,593	)		(813	)		(299	)		(1,729	)
Gains included in earnings		7,021			673			100			1,729
Total unrealized (losses) gains		(4,029	)		156			(100	)		(589	)
Balance at the end of the period	$	22,238		$	30,500		$	20,821		$	27,126

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~~three months ended ~~September 30,~~March 31, 2016 and 2015, ~~and 2014,~~ the Company did not transfer any securities between levels in the fair value hierarchy.

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

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

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

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

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

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

	Total Fair Value Level 3		Losses		Total Fair Value Level 3		Losses
	(Dollars in thousands)				(Dollars in thousands)
As of and for the Year-to-date Period Ended September 30, 2015
As of and for the Year-to-date Period Ended March 31, 2016
Impaired loans (less specific allowance)	$	44,559	$	—	$	28,653	$	—
Foreclosed assets		213		—		281		2
Other real estate owned		7,650		30		3,963		—

As of and for the Year-to-date Period Ended December 31, 2014
As of and for the Year-to-date Period Ended December 31, 2015
Impaired loans (less specific allowance)	$	33,797	$	—	$	44,399	$	—
Foreclosed assets		220		—		230		—
Other real estate owned		7,859		730		7,984		128

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 and Interest-Bearing Deposits

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

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.

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.

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.

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

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

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,				December 31,				March 31,				December 31,
	2015				2014				2016				2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)								(Dollars in thousands)
FINANCIAL ASSETS
Level 2 inputs:
Cash and cash equivalents	$	1,655,061	$	1,655,061	$	1,913,895	$	1,913,895	$	1,668,325	$	1,668,325	$	1,598,177	$	1,598,177
Securities held for investment		8,333		8,398		8,593		8,671		7,879		7,934		8,289		8,350
Level 3 inputs:
Securities held for investment										500		500		500		500
Loans, net of allowance for loan losses		3,918,699		3,965,439		3,810,509		3,847,791		4,230,541		4,286,603		4,190,382		4,222,153
FINANCIAL LIABILITIES
Level 2 inputs:
Deposits		5,698,591		5,750,163		5,904,704		5,945,502		6,010,872		6,061,676		5,973,538		6,028,012
Short-term borrowings		3,777		3,777		3,982		3,982		1,300		1,300		500		500
Junior subordinated debentures		26,804		28,123		26,804		31,200		31,959		34,886		31,959		33,793
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
Loan commitments				1,708				1,640				1,634				1,681
Letters of credit				475				478				443				464

The Company has no non-financial assets or non-financial liabilities measured at fair value on a recurring basis. Certain non-financial assets and non-financial liabilities measured at fair value on a nonrecurring basis include intangible assets (excluding mortgage service rights, which are valued semi-annually) and other non-financial long-lived assets measured at fair value and adjusted for impairment. These items are evaluated at least annually for impairment. The overall levels of non-financial assets and non-financial liabilities measured at fair value on a nonrecurring basis were not considered to be significant to the Company at ~~September 30, 2015~~March 31, 2016 or December 31, ~~2014.~~2015.

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, 2015						December 31, 2014							March 31, 2016						December 31, 2015
Oil and Natural Gas Swaps and Options	Notional Units	Notional Amount			Estimated Fair Value			Notional Amount			Estimated Fair Value			Notional Units	Notional Amount			Estimated Fair Value			Notional Amount			Estimated Fair Value
		(Notional amounts and dollars in thousands)													(Notional amounts and dollars in thousands)
Oil
Derivative assets	Barrels		55		$	1,197			312		$	4,629		Barrels		98		$	107			86		$	604
Derivative liabilities	Barrels		(55	)		(971	)		(312	)		(4,271	)	Barrels		(98	)		(5	)		(86	)		(378	)

Natural Gas
Derivative assets	MMBTUs		3,790			1,160			2,010			1,495		MMBTUs		3,230			1,103			3,920			1,342
Derivative liabilities	MMBTUs		(3,790	)		(364	)		(2,010	)		(485	)	MMBTUs		(3,230	)		(600	)		(3,920	)		(611	)

Total Fair Value	Included in													Included in
Derivative assets	Other assets					2,357						6,124		Other assets					1,210						1,946
Derivative liabilities	Other liabilities					(1,335	)					(4,756	)	Other liabilities					(605	)					(989	)

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

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

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

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

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.

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		Metropolitan Banks		Community Banks		Other Financial Services		Executive, Operations & Support			Eliminations			Consolidated
	(Dollars in thousands)														(Dollars in thousands)
Three Months Ended September 30, 2015
Three Months Ended March 31, 2016
Net interest income (expense)	$	15,221	$	30,429	$	1,638	$	(412	)	$	—		$	46,876	$	15,843	$	33,122	$	1,416	$	(405	)	$	—		$	49,976
Noninterest income		3,755		13,427		7,507		17,250			(16,615	)		25,324		3,788		13,596		7,479		17,678			(16,924	)		25,617
Income before taxes		9,463		18,693		3,098		9,616			(16,446	)		24,424		9,348		19,094		3,114		10,500			(16,857	)		25,199

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

Nine Months Ended September 30, 2015
Net interest income (expense)	$	45,946	$	88,928	$	5,156	$	(1,313	)	$	—		$	138,717
Noninterest income		10,745		38,743		27,621		55,868			(53,642	)		79,335
Income before taxes		29,152		52,500		15,015		34,024			(53,372	)		77,319

Nine Months Ended September 30, 2014
Three Months Ended March 31, 2015
Net interest income (expense)	$	44,426	$	86,272	$	4,538	$	(1,204	)	$	—		$	134,032	$	15,400	$	29,055	$	1,618	$	(447	)	$	—		$	45,626
Noninterest income		10,293		38,402		21,107		51,979			(49,670	)		72,111		3,457		12,326		8,727		17,292			(16,506	)		25,296
Income before taxes		25,914		54,146		8,360		29,252			(49,396	)		68,276		9,889		16,407		5,007		9,804			(16,442	)		24,665

Total Assets:
September 30, 2015	$	2,220,378	$	4,081,832	$	124,713	$	685,359		$	(706,186	)	$	6,406,096
December 31, 2014		2,298,828		4,113,783		145,814		679,194			(662,647	)		6,574,972
March 31, 2016															$	2,307,503	$	4,401,449	$	127,748	$	628,843		$	(724,605	)	$	6,740,938
December 31, 2015																2,277,870		4,379,205		128,697		624,428			(717,371	)		6,692,829

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.

On October 8, 2015, the Company completed its acquisition of CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma. Bank of Commerce has approximately $196 million in total assets, $148 million in loans, $170 million in deposits, and $22 million in equity capital. The acquisition was accounted for under the acquisition method and the Company acquired 100% of the voting interest. The bank will operate under its present name until it is merged into BancFirst, which is expected to be during the fourth quarter of 2015. The acquisition will not have a material effect on the Company’s consolidated financial statements. The acquisition of CSB Bancshares Inc. and its subsidiary bank, Bank of Commerce will complement our community banking strategy by adding two communities to our banking network throughout Oklahoma.

Subsequent to September 30, 2015, the Company recorded a gain on sale of securities of $2.1 million, related to warrants associated with a loan transaction, which will be included in fourth quarter earnings.

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

The following discussion and analysis presents factors that the Company believes are relevant to an assessment and understanding of the Company’s consolidated financial position and results of operations. This discussion and analysis should be read in conjunction with the Company’s December 31, ~~2014~~2015 consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014~~2015 and the Company’s consolidated financial statements and the related Notes included in Item 1.

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

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

BancFirst Corporation’s net income ~~was $15.6 million, or $0.98 diluted earnings per share,~~ for the ~~third~~first quarter of ~~2015,~~2016 was $16.6 million, compared to $16.3 million for the first quarter of 2015. Diluted net income ~~of $18.8 million, or $1.19 diluted earnings~~ per common share was $1.05 and $1.03 for the ~~third~~first quarter of ~~2014. Net income was $50.4 million, or $3.18 diluted earnings per share for the nine months ended September 30,~~2016 and 2015, ~~compared to $48.1 million, or $3.05 diluted earnings per share, for the nine months ended September 30, 2014.~~respectively.

The Company’s net interest income for the ~~third~~first quarter of ~~2015~~2016 increased to ~~$46.9~~$50.0 million, compared to ~~$46.5~~$45.6 million for the ~~third~~first quarter of ~~2014.~~2015. The net interest margin for the quarter was ~~3.12%~~3.25%, compared to ~~3.13%~~3.07% a year ago. Internal loan growth, acquired loans from the Company’s October 2015 acquisition and the increase in the Fed Fund rate of 25 basis points during the fourth quarter of 2015 contributed to the higher net interest income and margin in 2016. The Company’s provision for loan losses for the ~~third~~first quarter of ~~2015 was $1.4~~2016 increased to $4.1 million, compared to ~~negative $3.1~~$1.3 million 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.~~provision was primarily due to downgrades of a few commercial loans which were impacted by the economic effects in Oklahoma from low energy prices. Net charge-offs for the quarter were ~~0.08%~~only 0.03% of average loans, compared to ~~net charge-offs of 0.02%~~0.01% for the ~~third~~first quarter of ~~2014.~~2015. Noninterest income for the quarter totaled ~~$25.3~~$25.6 million, compared to ~~$24.9~~$25.3 million last year. Noninterest expense for the quarter totaled ~~$46.4~~$46.3 million, compared to ~~$46.9~~$44.9 million last ~~year.~~year, primarily due to salary increases from raises and the Company’s acquisition in the fourth quarter of 2015. The increase in noninterest expenses was partially offset by gains on the sale of other real estate owned totaling $1.2 million. The Company’s effective tax rate ~~increased to 36.0%~~was 34.2% compared to ~~32.0%~~34.1% for the ~~third~~first quarter of ~~2014, due primarily to tax credits that lowered the effective tax rate in 2014.~~2015.

At ~~September 30, 2015,~~March 31, 2016, the Company’s total assets were ~~$6.4~~$6.7 billion, ~~down $168.9 million or 2.6%~~largely unchanged from December 31, ~~2014.~~2015. Securities decreased ~~$16.9~~$55.0 million to a total of ~~$507.9 million.~~$498.0 million due to large maturities during the quarter. Loans totaled ~~$4.0~~$4.3 billion, up ~~$111.2 million or 2.9%~~slightly from December 31, ~~2014.~~2015. Deposits totaled ~~$5.7~~$6.0 billion, ~~down $206.1 million or 3.5% from~~marginally above the December 31, ~~2014.~~2015 total. The Company’s total stockholders’ equity was ~~$646.1~~$662.7 million, an increase of ~~$36.7~~$7.2 million, or ~~6.0%~~1.1%, over December 31, ~~2014.~~2015.

Asset quality remained strong during the ~~third~~first quarter of ~~2015.~~2016. Nonperforming and restructured assets were ~~0.87%~~0.55% of total assets at ~~September 30, 2015~~March 31, 2016 compared to ~~0.64%~~0.83% at December 31, ~~2014. During the second quarter the Company’s nonaccrual loans increased~~2015. The decrease in nonperforming and restructured assets was largely due to one relationship that was removed from a troubled debt restructuring status due to sustained improvement in financial condition, performance and the ~~downgrade~~commercially reasonable nature of ~~a single commercial loan.~~its structure. Also contributing to the decrease in nonperforming assets were sales of other real estate owned. The allowance to total loans was ~~1.03%~~1.04%, compared to ~~1.06%~~0.98% at year-end ~~2014.~~2015. The allowance to nonperforming and restructured loans was 136.4% compared to 88.5% at year-end 2015.

~~Subsequent to September 30, 2015,~~During the quarter, the Company ~~recorded a gain on sale~~repurchased 100,000 shares of ~~securities~~its common stock at an average price of ~~$2.1 million, related to a previously restructured loan, which will be included in fourth quarter earnings.~~$55.23 under the Company’s stock repurchase program.

On October 8, 2015, the Company completed the acquisition of CSB Bancshares, Inc. and its subsidiary bank, Bank of Commerce, with locations in Yukon, Mustang, and El Reno, Oklahoma. Bank of Commerce ~~has~~had approximately $196 million in total assets, $148 million in loans, $170 million in deposits, and $22 million in equity capital. The bank ~~will operate under its present name until it is~~was merged into BancFirst ~~which is expected to be~~ during the fourth quarter of 2015.

Oil prices continued to be low during the ~~third~~first quarter of ~~2015,~~2016, which had ~~an impact~~a dampening effect on ~~loan demand.~~the Oklahoma economy. Any continued impact from low oil prices on Oklahoma’s economy ~~will~~and the Company’s financial results could become more apparent in future periods.

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

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

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

	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended March 31,
	2015			2014			2015			2014			2016			2015
Income Statement Data
Net interest income	$	46,876		$	46,514		$	138,717		$	134,032		$	49,976		$	45,626
Provision for loan losses		1,424			(3,115	)		4,029			1,232			4,103			1,334
Securities transactions		—			284			7,121			819			100			1,729
Total noninterest income		25,324			24,938			79,335			72,111			25,617			25,296
Salaries and employee benefits		28,746			28,153			84,145			81,569			29,357			27,513
Total noninterest expense		46,352			46,942			136,704			136,635			46,291			44,923
Net income		15,630			18,793			50,442			48,138			16,579			16,259
Per Common Share Data
Net income – basic	$	1.01		$	1.22		$	3.25		$	3.12		$	1.07		$	1.05
Net income – diluted		0.98			1.19			3.18			3.05			1.05			1.03
Cash dividends		0.36			0.34			1.04			0.96			0.36			0.34
Performance Data
Return on average assets		0.97	%		1.17	%		1.04	%		1.02	%		1.00	%		1.01	%
Return on average stockholders’ equity		9.64			12.63			10.68			11.14			10.05			10.65
Cash dividend payout ratio		35.53			27.91			32.04			30.74			33.73			32.43
Net interest spread		2.98			2.99			2.95			2.93			3.09			2.93
Net interest margin		3.12			3.13			3.09			3.07			3.25			3.07
Efficiency ratio		64.20			65.70			62.69			66.28			61.24			63.34
Net charge-offs to average loans		0.08			0.02			0.10			0.02			0.03			0.02

For the three months ended ~~September 30, 2015,~~March 31, 2016, net interest income, which is the Company’s principal source of operating revenue, increased to ~~$46.9~~$50.0 million compared to ~~$46.5~~$45.6 million for the three months ended ~~September 30, 2014, due to higher volume of earning assets.~~March 31, 2015. Net interest margin is the ratio of taxable-equivalent net interest income to average earning assets for the period. The Company’s net interest margin for the quarter was ~~3.12%~~3.25% compared to ~~3.13%~~3.07% a year ago. Internal loan growth, acquired loans from the Company’s October 2015 acquisition and the increase in the Fed Fund rate of 25 basis points during the fourth quarter of 2015 contributed to the higher net interest income and margin in 2016. If interest rates and/or loan volume do not increase, management would expect its net interest margin to ~~continue to compress in 2015 as higher yielding loans and securities mature and are replaced~~generally remain at current ~~market rates.~~levels.

Net interest income for the nine months ended September 30, 2015 was $138.7 million compared to $134.0 million for the nine months ended September 30, 2014. The net interest margin for the year-to-date increased slightly compared to the same period of the previous year, as shown in the preceding table.

The Company’s provision for loan loss for the ~~third~~first quarter of ~~2015~~2016 increased to ~~$1.4~~$4.1 million compared to ~~negative $3.1~~$1.3 million 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.~~provision was primarily due to downgrades of a few commercial loans which were impacted by the economic effect in Oklahoma from low energy prices. The Company establishes an allowance as an estimate of the probable inherent losses in the loan portfolio at the balance sheet date. Management believes the allowance for loan losses is appropriate based upon management’s best estimate of probable losses that have been incurred within the existing loan portfolio. Should any of the factors considered by management in evaluating the appropriate level of the allowance for loan losses change, the Company’s estimate of probable loan losses could also change, which could affect the amount of future provisions for loan losses. Net loan charge-offs were ~~$3.1~~$1.2 million for the ~~third~~first quarter of ~~2015,~~2016, compared to ~~net charge-offs of $715,000~~$666,000 for the ~~third~~first quarter of ~~2014. Net charge-offs increased in 2015 due to a $2.1 million charge off on a portion of a nonaccrual loan.~~2015. 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, 2015, the Company’s provision for loan losses was $4.0 million, compared to $1.2 million for the nine months ended September 30, 2014. Net loan charge-offs were $3.9 million, compared to $799,000 for the same period of the prior year.

Noninterest income totaled $25.6 million for the first quarter of 2016 compared to $25.3 million for the ~~third~~first quarter of ~~2015 compared to $24.9 million for the third quarter of 2014.~~ 2015.

The Company had fees from debit card usage totaling ~~$5.7~~$5.9 million and ~~$5.8~~$5.4 million during the three month periods ended ~~September 30,~~March 31, 2016 and 2015, respectively. This represents 23.1% and ~~2014, respectively.~~

~~Noninterest~~21.5% of the Company’s noninterest income for the ~~nine months~~three month periods ended ~~September 30,~~March 31, 2016 and 2015, totaled $79.3 million compared to $72.1 million for the nine months ended September 30, 2014. Noninterest income increased due to the Company recording a gain from the sale of an investment by the Company’s wholly-owned subsidiary Council Oak Partners, LLC, of approximately $5.3 million and a $1.7 million gain on the sale of an investment by Council Oak Investment Corporation, a wholly-owned subsidiary of BancFirst. Fees from debit card usage totaled $17.0 million and $16.9 million during the nine months ended September 30, 2015 and 2014, respectively.

For the three months ended ~~September 30, 2015,~~March 31, 2016, noninterest expense totaled ~~$46.4~~$46.3 million, compared to ~~$46.9~~$44.9 million for the three months ended ~~September 30, 2014.~~

For the nine months ended September 30, 2015, noninterest expense totaled $136.7 million compared to $136.6 million for the nine months ended September 30, 2014. Annual salary increases in 2015 were offset by a reduction of the amortization on historic tax credits realized in 2014. In addition, the Company recorded an impairment loss of $368,000, which is includedMarch 31, 2015. The increase in noninterest expense ~~after adopting a plan~~for the first quarter of 2016 was primarily due to salary increases from raises and the Company’s acquisition in the ~~second~~fourth quarter of ~~2015 to close a small branch and leave a full service ATM to serve the community.~~2015. This was partially offset by gains on sale of other real estate owned totaling $1.2 million.

The Company’s effective tax rate on income before taxes ~~increased to 36.0% for the third quarter of 2015, compared to 32.0% for the third quarter of 2014, due primarily to tax credits that lowered the effective tax rate in 2014.~~

~~The Company’s effective tax rate on income before taxes~~ was ~~34.8%~~34.2% for the first ~~nine months~~quarter of ~~2015,~~2016, compared to ~~29.5%~~34.1% for the first ~~nine months~~quarter of ~~2014 due primarily to tax credits that lowered the effective tax rate in 2014 and the recognition of state deferred tax benefits in 2014.~~ 2015.

	September 30,			December 31,			March 31,			December 31,
	2015			2014			2016			2015
	(unaudited)						(unaudited)
Balance Sheet Data
Total assets	$	6,406,096		$	6,574,972		$	6,740,938		$	6,692,829
Total loans		3,959,669			3,851,398
Total loans (net of unearned interest)								4,282,738			4,245,773
Allowance for loan losses		40,970			40,889			44,571			41,666
Securities		507,858			524,783			497,986			552,949
Deposits		5,698,591			5,904,704			6,010,872			5,973,358
Stockholders' equity		646,061			609,314			662,661			655,510
Book value per share		41.44			39.30			42.68			42.03
Tangible book value per share		37.99			35.71			38.22			37.56
Average loans to deposits (year-to-date)		66.56	%		63.64	%		71.28	%		67.34	%
Average earning assets to total assets (year-to-date)		93.08			92.71			92.88			93.02
Average stockholders’ equity to average assets (year-to-date)		9.73			9.19			9.92			9.76
Asset Quality Ratios
Nonperforming and restructured loans to total loans		1.20	%		0.88	%		0.76	%		1.11	%
Nonperforming and restructured assets to total assets		0.87			0.64			0.55			0.83
Allowance for loan losses to total loans		1.03			1.06			1.04			0.98
Allowance for loan losses to nonperforming and restructured loans		85.77			120.05			136.42			88.50

The aggregate of cash and due from banks and interest-bearing deposits with banks ~~as of September 30, 2015 totaled~~increased $70.1 million, or 4.39% to $1.7 billion, ~~compared to $1.9 billion at~~from December 31, ~~2014.~~ 2015 to March 31, 2016. This increase was due to large maturities of securities during the quarter and a marginal increase in deposits.

At ~~September 30, 2015,~~March 31, 2016, total securities decreased ~~$16.9~~$55.0 million, or 9.9% compared to December 31, ~~2014.~~2015. The size of the Company’s securities portfolio is determined by the Company’s liquidity and asset/liability management. The net unrealized gain on securities available for sale, before taxes, was ~~$4.2~~$3.4 million at ~~September 30, 2015,~~March 31, 2016, compared to an unrealized gain of ~~$6.8~~$2.5 million at December 31, ~~2014.~~2015. These unrealized gains are included in the Company’s stockholders’ equity as accumulated other comprehensive income, net of income tax, in the amounts of ~~$2.6~~$2.1 million and ~~$4.2~~$1.5 million, respectively. The unrealized gains decreased in 2015 primarily due to the reclassification of an unrealized gain on one investment of $3.3 million from other comprehensive income to realized gain by Council Oak Partners, LLC, a wholly-owned subsidiary of the Company. The realized gain is reported as securities transactions within the noninterest income section of the consolidated statement of comprehensive income.

At ~~September 30, 2015,~~March 31, 2016, loans totaled ~~$4.0~~$4.3 billion, up ~~$111.2 million or 2.9%~~slightly from December 31, ~~2014.~~2015. The ~~growth~~increase in ~~loans~~2016 was ~~largely~~primarily driven by an increase in commercial real estate ~~which was up $59.2 million or 5% from December 31, 2014.~~loans located in the Company’s metropolitan markets.

At ~~September 30, 2015,~~March 31, 2016, the allowance for loan losses to total loans represented ~~1.03%~~1.04% of total loans, compared to ~~1.06%~~0.98% at December 31, ~~2014. The decrease in the allowance for loan losses to total loans primarily resulted from an increase in charge offs during the period and loan growth.~~2015.

The fair value adjustment on acquired loans consists of an interest rate component to adjust the effective rates on the loans to market rates and a credit component to adjust for estimated credit exposures in the acquired loans. The credit component of the adjustment was ~~$3.1~~$3.0 million at ~~September 30, 2015~~March 31, 2016 and ~~$4.3~~$3.3 million at December 31, ~~2014~~2015 while the acquired loans outstanding were ~~$76.9~~$187.7 million and ~~$101.7~~$192.9 million, respectively. ~~The decrease in the credit component in 2015 was due to loan payoffs and accretion.~~

Nonperforming and restructured assets totaled ~~$55.6~~$36.9 million at ~~September 30, 2015,~~March 31, 2016, compared to ~~$42.1~~$55.3 million at December 31, ~~2014.~~2015. The Company’s level of nonperforming and restructured assets has continued to be relatively low. The decrease in nonperforming and restructured assets in 2016 was due to one relationship that was re-evaluated and removed from restructured loans due to sustained improvement in financial condition, performance and the commercially reasonable nature of its structure.

Nonaccrual loans totaled ~~$30.3~~$31.0 million at ~~September 30, 2015,~~March 31, 2016, compared to ~~$16.4~~$30.1 million at the end of ~~2014.~~2015. 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 ~~$1.5 million~~$513,000 for the ~~nine months ended September 30, 2015~~first quarter of 2016 and ~~$839,000~~$310,000 for the ~~nine months ended September 30, 2014.~~first quarter of 2015. Only a small amount of this interest is expected to be ultimately collected. ~~During the second quarter of 2015 the Company’s nonaccrual loans increased due to the downgrade of a single commercial loan.~~

Other real estate owned and repossessed assets totaled ~~$7.9~~$4.2 million at ~~September 30, 2015,~~March 31, 2016, compared to ~~$8.1~~$8.2 million at December 31, ~~2014.~~2015. Other real estate owned and repossessed assets decreased during the quarter primarily due to the sale of two ~~properties during the first quarter of 2015, partially offset by an addition in the second quarter.~~properties.

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 ~~$5.4~~$6.1 million of these loans at ~~September 30, 2015,~~March 31, 2016, compared to ~~$27.5~~$4.9 million at December 31, ~~2014.~~2015. Potential problem loans are not included in nonperforming and restructured loans. In general, these loans are adequately collateralized and have no specific identifiable probable loss. Loans which are considered to have identifiable probable loss potential are placed on nonaccrual status, are allocated a specific allowance for loss or are directly charged-down, and are reported as nonperforming. ~~Potential problem loans decreased due to the downgrade of a single commercial loan that was moved to nonaccrual during the second quarter.~~

At ~~September 30, 2015,~~March 31, 2016, deposits totaled ~~$5.7~~$6.0 billion, ~~a decrease of $206.1 million or 3.5% compared to~~marginally above the December 31, ~~2014. Deposits decreased due to a temporary influx of deposits at year end 2014.~~2015 balance. The Company’s core deposits provide it with a stable, low-cost funding source. The Company’s core deposits as a percentage of total deposits were ~~94.2%~~94.4% at ~~September 30, 2015~~March 31, 2016 compared to ~~94.1%~~94.3% at December 31, ~~2014.~~2015. Noninterest-bearing deposits to total deposits were ~~39.4%~~40.2% at ~~September 30, 2015,~~March 31, 2016, compared to ~~40.8%~~40.3% at December 31, ~~2014.~~2015.

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 ~~$3.8~~$1.3 million at ~~September 30, 2015,~~March 31, 2016, compared to ~~$4.0 million~~$500,000 at December 31, ~~2014.~~2015.

The Company has a line of credit from the Federal Home Loan Bank (“FHLB”) of Topeka, Kansas to use for liquidity or to match-fund certain long-term fixed rate loans. The Company’s assets, including residential first mortgages of ~~$649.3~~$656.2 million, are

pledged as collateral for the borrowings under the line of credit. As of ~~September 30, 2015~~March 31, 2016 and December 31, ~~2014,~~2015, the Company had no advances ~~outstanding.~~

~~The~~outstanding under the line of credit from FHLB. In addition, the Company has a revolving line of credit with ~~a bank of~~the ability to draw up to $10.0 million. This line of credit has a variable rate based on prime rate minus 25 basis points and matures in 2020. There were no borrowings against ~~the line at September 30, 2015. The line is reviewed annually and is due on demand. Under terms of the~~this line of credit ~~the Company is required to maintain compliance with specified financial covenants.~~at March 31, 2016.

There have not been any other material changes from the liquidity and funding discussion included in Management’s Discussion and Analysis in the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

Stockholders’ equity totaled ~~$646.1~~$662.7 million at ~~September 30, 2015,~~March 31, 2016, compared to ~~$609.3~~$655.5 million at December 31, ~~2014.~~2015. In addition to net income of ~~$50.4~~$16.6 million, other changes in stockholders’ equity during the ~~nine~~three months ended ~~September 30, 2015~~March 31, 2016 included ~~$2.8 million~~$693,000 related to stock option exercises, ~~and $1.2 million~~$451,000 related to stock-based compensation and a $530,000 increase in other comprehensive income, that were partially offset by ~~a $1.6 million decrease in other comprehensive income and $16.2~~$5.6 million in ~~dividends.~~dividends and $5.5 million in stock repurchases. The Company’s leverage ratio and total risk-based capital ratios at ~~September 30, 2015,~~March 31, 2016, were well in excess of the regulatory requirements.

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

There have not been any material changes in the resources required for scheduled repayments of contractual obligations from the table of Contractual Cash Obligations included in Management’s Discussion and Analysis which was included in the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

	Three Months Ended September 30,																Three Months Ended March 31,
	2015								2014								2016								2015
				Interest		Average						Interest		Average						Interest		Average						Interest		Average
	Average			Income/		Yield/			Average			Income/		Yield/			Average			Income/		Yield/			Average			Income/		Yield/
	Balance			Expense		Rate			Balance			Expense		Rate			Balance			Expense		Rate			Balance			Expense		Rate
ASSETS
Earning assets:
Loans (1)	$	3,885,579		$	47,455		4.85	%	$	3,681,534		$	46,838		5.05	%	$	4,242,883		$	50,329		4.76	%	$	3,840,833		$	46,051		4.86	%
Securities – taxable		485,862			1,291		1.05			512,325			1,536		1.19			491,505			1,327		1.08			486,430			1,399		1.17
Securities – tax exempt		43,118			382		3.51			41,334			404		3.88			42,539			393		3.71			39,005			378		3.93
Interest-bearing deposits w/ banks & FFS		1,570,367			1,009		0.25			1,694,709			1,112		0.26			1,419,500			1,802		0.51			1,686,414			1,062		0.26
Total earning assets		5,984,926			50,137		3.32			5,929,902			49,890		3.34			6,196,427			53,851		3.49			6,052,682			48,890		3.28
Nonearning assets:
Cash and due from banks		168,607								182,129								179,455								181,937
Interest receivable and other assets		313,686								316,314								336,841								316,550
Allowance for loan losses		(42,061	)							(43,332	)							(41,591	)							(40,879	)
Total nonearning assets		440,232								455,111								474,705								457,608
Total assets	$	6,425,158							$	6,385,013							$	6,671,132							$	6,510,290
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities:
Transaction deposits	$	701,405		$	181		0.10	%	$	729,948		$	175		0.09	%	$	792,120		$	201		0.10	%	$	723,908		$	168		0.09	%
Savings deposits		2,019,956			1,155		0.23			2,012,597			1,146		0.23			2,078,802			1,691		0.33			2,052,927			1,150		0.23
Time deposits		718,963			1,186		0.65			771,103			1,337		0.69			721,792			1,188		0.66			743,624			1,220		0.67
Short-term borrowings		3,014			1		0.15			12,636			6		0.18			1,111			1		0.35			3,033			1		0.14
Junior subordinated debentures		26,804			492		7.29			26,804			491		7.27			31,959			522		6.55			26,804			491		7.43
Total interest-bearing liabilities		3,470,142			3,015		0.34			3,553,088			3,155		0.35			3,625,784			3,603		0.40			3,550,296			3,030		0.35
Interest-free funds:
Noninterest-bearing deposits		2,284,207								2,214,894								2,359,783								2,312,217
Interest payable and other liabilities		27,243								26,584								23,627								28,636
Stockholders’ equity		643,566								590,447								661,938								619,141
Total interest free funds		2,955,016								2,831,925								3,045,348								2,959,994
Total liabilities and stockholders’ equity	$	6,425,158							$	6,385,013							$	6,671,132							$	6,510,290
Net interest income				$	47,122							$	46,735							$	50,248							$	45,860
Net interest spread							2.98	%							2.99	%							3.09	%							2.93	%
Effect of interest free funds							0.14	%							0.14	%							0.16	%							0.14	%
Net interest margin							3.12	%							3.13	%							3.25	%							3.07	%

Nine Months Ended September 30,

2015

2014

Interest

Average

Interest

Average

Average

Income/

Yield/

Average

Income/

Yield/

Balance

Expense

Rate

Balance

Expense

Rate

ASSETS

Earning assets:

Loans (1)

$
3,860,299

$
140,107

4.85
%

$
3,589,402

$
135,481

5.05
%
Securities – taxable

493,702

4,148

1.12

509,336

4,343

1.14

Securities – tax exempt

39,912

1,123

3.76

41,137

1,253

4.07

Interest-bearing deposits w/ banks & FFS

1,644,708

3,137

0.25

1,727,436

3,303

0.26

Total earning assets

6,038,621

148,515

3.29

5,867,311

144,380

3.29

Nonearning assets:

Cash and due from banks

175,714

189,030

Interest receivable and other assets

315,074

315,901

Allowance for loan losses

(41,633
)

(41,067
)

Total nonearning assets

449,155

463,864

Total assets

$
6,487,776

$
6,331,175

LIABILITIES AND STOCKHOLDERS’ EQUITY

Interest-bearing liabilities:

Transaction deposits

$
720,175

$
532

0.10
%

$
766,895

$
580

0.10
%
Savings deposits

2,047,022

3,463

0.23

1,981,904

3,363

0.23

Time deposits

730,717

3,607

0.66

792,202

4,237

0.72

Short-term borrowings

2,671

3

0.15

9,491

13

0.18

Long-term borrowings

—

—

—

2,186

25

1.53

Junior subordinated debentures

26,804

1,474

7.35

26,804

1,474

7.35

Total interest-bearing liabilities

3,527,389

9,079

0.34

3,579,482

9,692

0.36

Interest-free funds:

Noninterest-bearing deposits

2,302,164

2,154,395

Interest payable and other liabilities

26,839

19,325

Stockholders’ equity

631,384

577,973

Total interest free funds

2,960,387

2,751,693

Total liabilities and stockholders’ equity

$
6,487,776

$
6,331,175

Net interest income

$
139,436

$
134,688

Net interest spread

2.95
%

2.93
%
Effect of interest free funds

0.14
%

0.14
%
Net interest margin

3.09
%

3.07
%

There have been no significant changes in the Registrant’s disclosures regarding market risk since December 31, ~~2014,~~2015, the date of its most recent annual report to stockholders.

The Company’s Chief Executive Officer, Chief Financial Officer and its Disclosure Committee, which includes the Company’s Chief Risk Officer, Chief Internal Auditor, Chief Asset Quality Officer, ~~Chief Internal Auditor,~~ Controller, and General Counsel, have evaluated, as of the last day of the period covered by this report, the Company’s disclosure controls and procedures. Based on their evaluation they concluded that the disclosure controls and procedures of the Company are effective to ensure that information required to be disclosed by the

Company in the reports filed or submitted by it under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported, within the time periods specified in the applicable rules and forms.

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

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.

As of ~~September 30, 2015,~~March 31, 2016, there have been no material changes from the risk factors previously disclosed in Part I, Item 1A, of the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2014.~~2015.

The following table provides information with respect to purchases made by or on behalf of the Company or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of the Company’s common stock during the three months ended March 31, 2016.

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.

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)

Large accelerated filer	o	Accelerated filer	x

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

	Shares		Average Exercise Price
Three Months Ended September 30, 2015		145,261	$	60.51
Three Months Ended September 30, 2014		76,413		56.23
Nine Months Ended September 30, 2015		165,927	$	58.33
Nine Months Ended September 30, 2014		63,645		55.35

						Other		Executive,
	Metropolitan		Community			Financial		Operations
	Banks		Banks			Services		& Support		Consolidated
	(Dollars in thousands)

Balance at December 31, 2014	$	8,078	$	30,970		$	5,464	$	450	$	44,962
Impairment		—		(368	)		—		—		(368	)
Balance at September 30, 2015	$	8,078	$	30,602		$	5,464	$	450	$	44,594

	September 30, 2015
	(Dollars in thousands)
Fair value of stock options	$	4,186

	March 31, 2016
	(Dollars in thousands)
Unearned stock-based compensation expense	$	3,834

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
	(Dollars in thousands)
Derivative income	$	78	$	72	$	270	$	370

							Maximum
							Number of Shares
					Total Number of		That May Yet Be
					Shares Purchased		Purchased Under
	Total Number of		Average Price		as Part of Publicly		the Plan at the
Period	Shares Purchased		Paid Per Share		Announced Plan		End of the Period
January 1, 2016 to January 31, 2016		65,367	$	55.33		65,367		100,909
February 1, 2016 to February 29, 2016		34,633		55.04		34,633		66,276
March 1, 2016 to March 31, 2016		—		—		—		66,276

Exhibit Number		Exhibit
3.1		Second Amended and Restated Certificate of Incorporation of BancFirst Corporation (filed as Exhibit 1 to the Company’s 8-A/A filed July 23, 1998 and incorporated herein by reference).

3.2		Certificate of Amendment of the Second Amended and Restated Certificate of Incorporation of BancFirst Corporation dated June 15, 2004 (filed as Exhibit 3.5 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2004 and incorporated herein by reference).

3.3		Amended and Restated By-Laws of BancFirst Corporation (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K dated March 30, 2015 and incorporated herein by reference).

3.4		Certificate of Amendment of the Second Amended and Restated Certificate of Incorporation of BancFirst Corporation dated May 23, 2013 (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K dated May 29, 2013 and incorporated herein by reference).

4.1		Instruments defining the rights of securities holders (see Exhibits 3.1, 3.2, 3.3 and 3.4 above).

4.2		Form of Amended and Restated Trust Agreement relating to the 7.20% Cumulative Trust Preferred Securities of BFC Capital Trust II (filed as Exhibit 4.5 to the Company’s registration statement on Form S-3/A, File No. 333-112488 dated February 23, 2004, and incorporated herein by reference).

4.3		Form of 7.20% Cumulative Trust Preferred Security Certificate for BFC Capital Trust II (filed as Exhibit D to Exhibit 4.5 to the Company’s registration statement on Form S-3/A, File No. 333-112488 dated February 23, 2004, and incorporated herein by reference).

4.4		Form of Indenture relating to the 7.20% Junior Subordinated Deferrable Interest Debentures of BancFirst Corporation issued to BFC Capital Trust II (filed as Exhibit 4.1 to the Company’s registration statement on Form S-3, File No. 333-112488 dated February 4, 2004, and incorporated herein by reference).

4.5		Form of Certificate of 7.20% Junior Subordinated Deferrable Interest Debenture of BancFirst Corporation (filed as Exhibit 4.2 to the Company’s registration statement on Form S-3, File No. 333-112488 dated February 4, 2004, and incorporated herein by reference).

4.6		Form of Guarantee of BancFirst Corporation relating to the 7.20% Cumulative Trust Preferred Securities of BFC Capital Trust II (filed as Exhibit 4.7 to the Company’s registration statement on Form S-3/A, File No. 333-112488 dated February 23, 2004, and incorporated herein by reference).

4.7*4.7		Form of Guarantee Agreement by and between CSB Bancshares, Inc. and Wilmington Trust ~~Company.~~Company (filed as Exhibit 4.7 to the Company’s Quarterly Report on Form 10-Q for the Quarter ended September 30, 2015 and incorporated herein by reference).

4.8*4.8		Form of Indenture relating to the Floating Rate Junior Subordinated Deferrable Interest Debentures of CSB Bancshares, Inc., issued to Wilmington Trust ~~Company.~~Company (filed as Exhibit 4.8 to the Company’s Quarterly Report on Form 10-Q for the Quarter ended September 30, 2015 and incorporated herein by reference).

4.9*4.9		Form of First Supplemental Indenture relating to the Floating Rate Junior Subordinated Deferrable Interest Debentures by and between Wilmington Trust Company and BancFirst ~~Corporation.~~Corporation (filed as Exhibit 4.9 to the Company’s Quarterly Report on Form 10-Q for the Quarter ended September 30, 2015 and incorporated herein by reference).

10.1		BancFirst Corporation Employee Stock Ownership and Trust Agreement adopted effective January 1, 2015 (filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended March 31, 2015 and incorporated herein by reference).

10.2		Fourth Amended and Restated BancFirst Corporation Directors’ Stock Option Plan (filed as Exhibit 10.1 to the Company’s Form 8-K dated October 28, 2014 and incorporated herein by reference).

10.3		Fourth Amended and Restated BancFirst Corporation Directors’ Deferred Stock Compensation Plan (filed as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2014 and incorporated herein by reference).

10.4		Amended and Restated BancFirst Corporation Thrift Plan adopted March 25, 2010 effective January 1, 2010 (filed as Exhibit 10.6 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2010 and incorporated herein by reference).

~~10.5~~		Amendment to the Amended and Restated BancFirst Corporation Thrift Plan adopted December 16, 2010 effective January 1, 2011 (filed as Exhibit 10.9 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2010 and incorporated herein by reference).

~~Exhibit~~ ~~Number~~		~~Exhibit~~
~~10.6~~		Amendment to the Amended and Restated BancFirst Corporation Thrift Plan adopted October 27, 2011 effective October 1, 2011 (filed as Exhibit 10.9 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2011 and incorporated herein by reference).


~~10.7~~		Thirteenth Amended and Restated BancFirst Corporation Stock Option Plan (filed as Exhibit 10.1 to the Company’s Form 8-K dated October 28, 2014 and incorporated herein by reference).
10.5*		Adoption Agreement for the BancFirst Corporation Thrift Plan adopted April 21, 2016 effective January 1, 2016.

Exhibit Number		Exhibit
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

		BANCFIRST CORPORATION
		(Registrant)

Date: ~~November~~May 6, ~~2015~~2016		/s/ David E. Rainbolt
		David E. Rainbolt
		President
		Chief Executive Officer
		(Principal Executive Officer)

Date: ~~November~~May 6, ~~2015~~2016		/s/ Kevin Lawrence
		Kevin Lawrence
		Executive Vice President
		Chief Financial Officer
		(Principal Financial Officer)