Exhibit 99 (a)

NASD: BOKF

For Further Information Contact:

Joseph Crivelli             Andrea Myers

Investor Relations             Corporate Communications

(918) 595-3027             (918) 594-7794

BOK Financial Reports Quarterly Earnings of $76 Million

Board of Directors Approves 2 Cent Increase in Quarterly Dividend

Tenth Consecutive Year of Dividend Increases

TULSA, Okla. (Wednesday, October 29, 2014) - BOK Financial Corporation reported net income of $75.6 million or $1.09 per diluted share for the third quarter of 2014. Net income was $75.9 million or $1.10 per diluted share for the second quarter of 2014 and $75.7 million or $1.10 per diluted share for the third quarter of 2013.

President and Chief Executive Officer Steven G. Bradshaw stated, “Financial performance was solid in the third quarter. We delivered strong profitability while executing on several strategic objectives, including positioning our balance sheet for an expected rising interest rate environment in 2015 and investing in our information technology infrastructure.”

“Loan growth remained robust and revenue from fee generating businesses was up 9.2% compared to last year’s third quarter. Credit quality is strong, as we realized net recoveries for the fourth consecutive quarter, and our balance sheet continues to benefit from industry-leading capital strength and liquidity.”

“Going forward, we believe that our diversified business model, presence in growth markets, and ability to deploy capital in accretive acquisitions will continue to drive long-term shareholder value.”

Highlights of third quarter of 2014 included:

• Net interest revenue totaled $166.8 million for the third quarter of 2014, largely unchanged compared to the second quarter of 2014. Net interest margin was 2.67% for the third quarter of 2014 and 2.75% for the second quarter of 2014. The net interest margin decrease resulted from increased deposits at the Federal Reserve Bank funded by Federal Home Loan Bank borrowings and continued pressure on loan pricing.

• Fees and commissions revenue totaled $158.5 million for the third quarter of 2014, compared to $164.1 million for the second quarter. Brokerage and trading revenue decreased $3.8 million and mortgage banking revenue decreased $2.5 million.

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• Change in fair value of mortgage servicing rights, net of economic hedges, increased pre-tax net income in the third quarter of 2014 by $4.8 million and decreased pre-tax net income in the second quarter of 2014 by $1.5 million.

• Operating expense was $221.8 million for the third quarter, an increase of $7.1 million over the previous quarter. Personnel expense decreased $671 thousand. Non-personnel expense increased $7.8 million primarily due to increased risk management and compliance expenses. Repossessed asset costs were up due to asset impairment charges.

• No provision for credit losses was recorded in the third or second quarter of 2014. Net recoveries totaled $476 thousand in the third quarter of 2014 and $2.0 million in the previous quarter.

• The combined allowance for credit losses totaled $192 million or 1.41% of outstanding loans at September 30, 2014 compared to $192 million or 1.43% of outstanding loans at June 30, 2014. Nonperforming assets that are not guaranteed by U.S. government agencies totaled $144 million or 1.06% of outstanding loans and repossessed assets (excluding those guaranteed by U.S. government agencies) at September 30, 2014 and $145 million or 1.09% of outstanding loans and repossessed assets (excluding those guaranteed by U.S. government agencies) at June 30, 2014.

• Average loans increased by $254 million over the previous quarter due primarily to growth in commercial and commercial real estate loans. Average commercial loans were up$202 million and average commercial real estate loans increased $68 million. Period-end outstanding loan balances were $13.7 billion at September 30, 2014, a $257 millionincrease over June 30, 2014. Commercial loan balances increased $204 million and commercial real estate loans increased $69 million.

• Average deposits decreased $270 million compared to the previous quarter. A decrease in interest-bearing transaction accounts was partially offset by an increase in average demand deposit balances. Period-end deposits were $20.3 billionat September 30, 2014, a $283 milliondecrease from June 30, 2014. Period-end interest-bearing transaction deposit balances decreased, partially offset by an increase in demand deposit balances.

• The Company's Tier 1 common equity ratio, as defined by banking regulations, was 13.54% at September 30, 2014 and 13.46% at June 30, 2014. The Company and its subsidiary bank continue to exceed the regulatory definition of well capitalized. The Company's Tier 1 capital ratio was 13.71% at September 30, 2014 and 13.63% at June 30, 2014. Total capital ratio was 15.09% at September 30, 2014 and 15.38% at June 30, 2014. The Company's leverage ratio was 10.22% at September 30, 2014 and 10.26% at June 30, 2014.

• The Company paid a regular quarterly cash dividend of $28 million or $0.40 per common share during the third quarter of 2014. On October 28, 2014, the board of directors approved an increase in the quarterly cash dividend to $0.42 per common share payable on or about December 1, 2014 to shareholders of record as of November 14, 2014.

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Net Interest Revenue

Net interest revenue was $166.8 million for the third quarter of 2014, largely unchanged compared to the second quarter of 2014. Net interest margin was 2.67% for the third quarter of 2014, a decrease of 8 basis points compared to the second quarter of 2014.

The yield on average earning assets was 2.93%, a decrease of 9 basis points compared to the prior quarter. The loan portfolio yield decreased 7 basis points from the previous quarter to 3.78%, from continued market pricing pressure. The yield on the available for sale securities portfolio decreased 1 basis point to 1.95%. Excess cash flows continue to be reinvested in short-duration securities that yield around 2%. Funding costs were down1 basis point compared to the prior quarter to 0.41%.

Average earning assets increased $688 million during the third quarter of 2014, primarily related to a $583 millionincrease in interest-bearing cash and cash equivalents. A $274 milliondecrease in the available for sale securities portfolio was partially offset by growth in average loan balances of $254 million. The average balance of residential mortgage loans held for sale and restricted equity securities also increased over the prior quarter. Average deposits decreased $270 million compared to the second quarter of 2014. The average balance of borrowed funds increased $897 million primarily due to increased borrowings from the Federal Home Loan Bank.

"We remain on track with our plans to better position the balance sheet for a rising rate environment. Year-to-date, the amortized cost of our securities portfolio decreased by $921 million, while total loans have increased by $891 million. Our goal is to allow normal monthly run-off to decrease the securities portfolio by roughly an additional $300 million by the end of 2014, replacing those securities with high-quality loans to commercial borrowers," Steven Nell, Chief Financial Officer noted. "At the end of August, we increased our borrowings from the Federal Home Loan Bank by approximately $1.5 billion, earning a small spread by depositing the proceeds with the Federal Reserve. While the income impact was not very large, the risk/return trade-off was quite compelling. On a full-quarter basis, pre-tax net income will increase by approximately $800 thousand, net interest margin will decrease by 15 basis points. The Tier 1 leverage ratio will also decline by approximately 50 basis points."

Fees and Commissions Revenue

Fees and commissions revenue totaled $158.5 million for the third quarter of 2014, a decrease of $5.5 million compared to the second quarter of 2014, primarily due to a decrease in brokerage and trading and mortgage banking revenues. All other revenue sources were largely unchanged compared to the previous quarter.

Brokerage and trading revenue totaled $35.3 million, a decrease of $3.8 million compared to the prior quarter. The second quarter included $1.6 million of recoveries received from the Lehman Brothers and MF Global bankruptcies. Excluding these recoveries, customer hedging revenue increased by $2.6 million. Securities trading revenue decreased $2.9 million and retail brokerage fees were $1.9 million lower than the prior quarter, both largely due to lower interest rate volatility. Investment banking continued to perform well, largely unchanged compared to the second quarter.

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Mortgage banking revenue totaled $26.8 million for the third quarter of 2014, a decrease of $2.5 million compared to the second quarter of 2014. Revenue from mortgage loan production decreased $3.0 million. Net realized gains from loans funded and sold into the secondary market increased $4.4 million over the second quarter, primarily driven by a $354 million increase in loans sold. Average gains on sale margin decreased 3 basis points compared to the second quarter, primarily due to increased activity in our correspondent origination channel. The valuation on loan commitments and loans that have closed but have not yet been sold, net of forward sales contracts at the end of the third quarter was $7.4 million less than at the end of the second quarter of 2014. Revenue from mortgage loan servicing grew by $518 thousand due to an increase in the volume of loans serviced.

Operating Expense

Total operating expense was $221.8 million for the third quarter of 2014, an increase of $7.1 million over the second quarter of 2014.

Personnel costs decreased by $671 thousand compared to the second quarter of 2014. Regular compensation expense increased $1.6 million, offset by a $2.4 million seasonal decrease in payroll taxes. Incentive compensation expense was unchanged compared to the prior quarter.

Non-personnel expense increased $7.8 million over the second quarter of 2014. Net losses and operating expenses of repossessed assets increased $3.8 million over the prior quarter, primarily due to the write-downs of two properties identified through regularly scheduled annual appraisal updates. Professional fees and services expense increased $3.7 million largely due to increased risk management and regulatory compliance costs.

"We continue to invest in our risk management capabilities," said Chief Risk Officer Don Parker. "Those investments included a one-time, independent assessment of certain capabilities which increased professional fees by $2.2 million in the third quarter."

Loans, Deposits and Capital

Loans

Outstanding loans were $13.7 billion at September 30, 2014, an increase of $257 million over the previous quarter. Commercial, commercial real estate and consumer balances all grew over the prior quarter, partially offset by a decrease in residential mortgage loan balances.

Outstanding commercial loan balances increased $204 million or 2% over June 30, 2014. Energy loans grew by $132 million and service sector loans grew by $111 million over the prior quarter. Manufacturing sector loans increased$27 million over the second quarter. Wholesale/retail sector loans decreased $45 million and healthcare sector loans decreased $12 million. Unfunded energy loan commitments increased by $28 million in the third quarter to $2.8 billion. All other unfunded commercial loan commitments totaled $3.8 billion at September 30, 2014, an increase of $85 million over June 30, 2014.

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Commercial real estate loans grew by $69 million or 3% over June 30, 2014. Loans secured by multifamily residential properties were up $62 million. Loans secured by office buildings increased $45 million and loans secured by industrial facilities grew by $29 million. Loans secured by retail facilities decreased $31 million and other commercial real estate loan balances decreased $27 million. Residential construction and land development loan balances decreased $9.6 million from June 30, 2014. Unfunded commercial real estate loan commitments totaled $658 million at September 30, 2014, a $55 millionincrease over June 30, 2014.

Chief Operating Officer Daniel H. Ellinor added, “Loan growth remained solid in the third quarter. Total loan growth was 2% for the quarter or nearly 8% annualized. Total commercial loans and commercial real estate loans were both up 10% annualized.”

“Our energy portfolio delivered a second consecutive quarter of robust double-digit annualized loan

growth, with a full pipeline of new opportunities heading into the fourth quarter. We also saw strong

growth in the commercial services portfolio. Looking forward, we continue to believe our goal to deliver double-digit loan growth for the year is attainable.”

Deposits

Deposits totaled $20.3 billion at September 30, 2014, a decrease of $283 million compared to June 30, 2014. Interest-bearing transaction account balances decreased $454 million. Demand deposit balances grew by $130 million and time deposits were up$49 million over June 30. Among the lines of business, commercial deposits decreased $227 million and wealth management deposits decreased $54 million. Consumer deposits were up$72 million over June 30.

Capital

The Company and its subsidiary bank exceeded the regulatory definition of well capitalized at September 30, 2014. The Company's Tier 1 capital ratio was 13.71% at September 30, 2014 and 13.63% at June 30, 2014. The total capital ratio was 15.09% at September 30, 2014 and 15.38% at June 30, 2014. In addition, the Company's tangible common equity ratio, a non-GAAP measure, was 9.86% at September 30, 2014 and 10.20% at June 30, 2014. The decrease was primarily due to increased borrowing from the Federal Home Loan Bank deposited with the Federal Reserve to earn a small spread.

In July 2013, banking regulators issued final revised regulatory capital rules for substantially all U.S. banking organizations. The new capital rules, which will be effective for BOK Financial on January 1, 2015, establish a 7% threshold for the Tier 1 common equity ratio. The Company expects to exclude unrealized gains and losses from available for sale securities from its calculation of Tier 1 capital, consistent with the treatment under current capital rules. BOK Financial's Tier 1 common equity ratio based on the existing capital rule was 13.54% as of September 30, 2014. Based on our interpretation of the new capital rule, our estimated Tier 1 common equity ratio on a fully phased-in basis would be 12.60%, 560 basis points above the 7% regulatory threshold.

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Credit Quality

Nonperforming assets totaled $265 million or 1.92% of outstanding loans and repossessed assets at September 30, 2014 compared to $255 million or 1.88% of outstanding loans and repossessed assets at June 30, 2014. Nonperforming assets that are not guaranteed by U.S. government agencies totaled $144 million or 1.06% of outstanding loans and repossessed assets (excluding those guaranteed by U.S. government agencies) at September 30, 2014 and $145 million or 1.09% at June 30, 2014, a decrease of $1.3 million.

Nonaccruing loans totaled $97 million or 0.71% of outstanding loans at September 30, 2014 compared to $97 million or 0.72% of outstanding loans at June 30, 2014. New nonaccruing loans identified in the third quarter totaled $19 million, offset by $8.6 million in payments received, $7.4 million in foreclosures and repossessions and $2.6 million in charge-offs. At September 30, 2014, nonaccruing commercial loans totaled $16 million or 0.19% of outstanding commercial loans, nonaccruing commercial real estate loans totaled $31 million or 1.13% of outstanding commercial real estate loans and nonaccruing residential mortgage loans totaled $49 million or 2.47% of outstanding residential mortgage loans.

BOK Financial had net recoveries of $476 thousand for the third quarter of 2014 and $2.0 million for the second quarter of 2014. Gross charge-offs totaled $2.6 million for the third quarter, compared to $3.5 million for the previous quarter. Recoveries totaled $3.1 million for the third quarter of 2014 and $5.5 million for the second quarter of 2014.

After evaluating all credit factors, the Company determined that no provision for credit losses was necessary during the third quarter of 2014. The combined allowance for credit losses totaled $192 million or 1.41% of outstanding loans and 199% of nonaccruing loans at September 30, 2014. The allowance for loan losses was $191 million and the accrual for off-balance sheet credit losses was $1.2 million.

Real estate and other repossessed assets totaled $98 million at September 30, 2014, primarily consisting of $66 million of 1-4 family residential properties (including $47 million guaranteed by U.S. government agencies), $17 million of developed commercial real estate properties, $9.2 million of undeveloped land and $5.3 million of residential land and land development properties.

Securities and Derivatives

The fair value of the available for sale securities portfolio totaled $9.3 billion at September 30, 2014 and $9.7 billion at June 30, 2014. At September 30, 2014, the available for sale portfolio consisted primarily of $6.9 billion of residential mortgage-backed securities fully backed by U.S. government agencies and $2.1 billion of commercial mortgage-backed securities fully backed by U.S. government agencies.

At September 30, 2014 the available for sale securities portfolio had a net unrealized gain of $43 million compared to a net unrealized gain of $85 million at June 30, 2014. Net unrealized gains on residential mortgage-backed securities issued by U.S. government agencies at September 30, 2014decreased $28 million during the third quarter to $57 million primarily due to changes in interest rates during the quarter. Commercial mortgage-backed securities had a net unrealized loss of $27 million at September 30, 2014, compared to a net unrealized loss of $14 million at June 30, 2014.

In the third quarter of 2014, the Company recognized $146 thousand of net gains from sales of $553 million of available for sale securities. Securities were sold either because they had reached their expected maximum potential return or to move into securities that will perform better in a rising rate environment.

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The Company recognized minimal net gains from sales of $800 million of available for sale securities in the second quarter of 2014.

The Company also maintains a portfolio of residential mortgage-backed securities issued by U.S. government agencies and interest rate derivative contracts designated as an economic hedge of the changes in the fair value of our mortgage servicing rights. Due to fluctuations in residential mortgage interest rates and other factors, the fair value of mortgage servicing rights increased by $5.3 million during the third quarter and decreased $6.4 million during the second quarter. The value of securities and interest rate derivative contracts held as an economic hedge decreased by $434 thousand during the third quarter and increased $4.9 million during the second quarter.

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Conference Call and Webcast

The Company will hold a conference call at 9:00 a.m. central time on Wednesday, October 29, 2014 to discuss the financial results with investors. The live audio webcast and presentation slides will be available on the company’s website at www.bokf.com. The conference call can also be accessed by dialing 1-412-902-6611. A conference call and webcast replay will also be available shortly after conclusion of the live call at www.bokf.com or by dialing 1-412-317-0088 and referencing conference ID # 10054546.

About BOK Financial Corporation

BOK Financial Corporation is a $29 billion regional financial services company based in Tulsa, Oklahoma. The Company's stock is publicly traded on NASDAQ under the Global Select market listings (symbol: BOKF). BOK Financial's holdings include BOKF, NA, BOSC, Inc. and The Milestone Group, Inc. BOKF, NA operates TransFund, Cavanal Hill Investment Management, MBM Advisors and seven banking divisions: Bank of Albuquerque, Bank of Arizona, Bank of Arkansas, Bank of Kansas City, Bank of Oklahoma, Bank of Texas and Colorado State Bank and Trust. Through its subsidiaries, the Company provides commercial and consumer banking, investment and trust services, mortgage origination and servicing, and an electronic funds transfer network. For more information, visit www.bokf.com.

The Company will continue to evaluate critical assumptions and estimates, such as the appropriateness of the allowance for credit losses and asset impairment as of September 30, 2014 through the date its financial statements are filed with the Securities and Exchange Commission and will adjust amounts reported if necessary.

This news release contains forward-looking statements that are based on management's beliefs, assumptions, current expectations, estimates and projections about BOK Financial, the financial services industry and the economy generally. Words such as “anticipates,” “believes,” “estimates,” “expects,” “forecasts,” “plans,” “projects,” variations of such words and similar expressions are intended to identify such forward-looking statements. Management judgments relating to and discussion of the provision and allowance for credit losses involve judgments as to future events and are inherently forward-looking statements. Assessments that BOK Financial's acquisitions and other growth endeavors will be profitable are necessary statements of belief as to the outcome of future events based in part on information provided by others which BOK Financial has not independently verified. These statements are not guarantees of future performance and involve certain risks, uncertainties, and assumptions which are difficult to predict with regard to timing, extent, likelihood and degree of occurrence. Therefore, actual results and outcomes may materially differ from what is expected, implied or forecasted in such forward-looking statements. Internal and external factors that might cause such a difference include, but are not limited to (1) the ability to fully realize expected cost savings from mergers within the expected time frames, (2) the ability of other companies on which BOK Financial relies to provide goods and services in a timely and accurate manner, (3) changes in interest rates and interest rate relationships, (4) demand for products and services, (5) the degree of competition by traditional and nontraditional competitors, (6) changes in banking regulations, tax laws, prices, levies and assessments, (7) the impact of technological advances and (8) trends in consumer behavior as well as their ability to repay loans. BOK Financial and its affiliates undertake no obligation to update, amend or clarify forward-looking statements, whether as a result of new information, future events, or otherwise.

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BALANCE SHEETS -- UNAUDITED BOK FINANCIAL CORPORATION (In thousands)
	September 30, 2014			June 30, 2014			September 30, 2013
ASSETS
Cash and due from banks	$	557,658		$	615,479		$	625,671
Interest-bearing cash and cash equivalents	2,007,901			732,395			535,313
Trading securities	169,712			101,097			150,887
Investment securities	655,091			649,937			644,225
Available for sale securities	9,306,886			9,699,146			10,372,903
Fair value option securities	175,761			185,674			167,860
Restricted equity securities	189,587			91,213			125,540
Residential mortgage loans held for sale	373,253			325,875			230,511
Loans:
Commercial	8,572,038			8,367,661			7,571,075
Commercial real estate	2,724,199			2,654,978			2,349,229
Residential mortgage	1,979,663			2,008,215			2,034,765
Consumer	407,839			396,004			395,031
Total loans	13,683,739			13,426,858			12,350,100
Allowance for loan losses	(191,244		)	(190,690		)	(194,325		)
Loans, net of allowance	13,492,495			13,236,168			12,155,775
Premises and equipment, net	275,718			280,286			275,347
Receivables	114,374			115,991			108,435
Goodwill	377,780			377,780			359,759
Intangible assets, net	35,476			36,576			25,407
Mortgage servicing rights	173,286			155,740			140,863
Real estate and other repossessed assets, net	97,871			100,111			108,122
Derivative contracts, net	360,809			357,680			377,325
Cash surrender value of bank-owned life insurance	291,583			289,231			282,490
Receivable on unsettled securities sales	94,881			14,025			93,020
Other assets	354,898			479,366			386,914
TOTAL ASSETS	$	29,105,020		$	27,843,770		$	27,166,367
LIABILITIES AND EQUITY
Deposits:
Demand	$	8,038,129		$	7,908,005		$	7,331,976
Interest-bearing transaction	9,244,709			9,698,404			9,119,810
Savings	341,638			349,629			319,849
Time	2,664,580			2,615,826			2,720,020
Total deposits	20,289,056			20,571,864			19,491,655
Funds purchased	85,135			705,573			992,345
Repurchase agreements	1,026,009			1,072,375			782,418
Other borrowings	3,484,487			1,231,662			1,837,181
Subordinated debentures	347,936			347,890			347,758
Accrued interest, taxes, and expense	100,664			100,227			182,076
Due on unsettled securities purchases	8,126			124,537			114,259
Derivative contracts, net	348,687			297,851			232,544
Other liabilities	137,608			144,145			159,157
TOTAL LIABILITIES	25,827,708			24,596,124			24,139,393
Shareholders' equity:
Capital, surplus and retained earnings	3,219,798			3,163,101			2,993,870
Accumulated other comprehensive income (loss)	23,295			49,416			(2,626		)
TOTAL SHAREHOLDERS' EQUITY	3,243,093			3,212,517			2,991,244
Non-controlling interests	34,219			35,129			35,730
TOTAL EQUITY	3,277,312			3,247,646			3,026,974
TOTAL LIABILITIES AND EQUITY	$	29,105,020		$	27,843,770		$	27,166,367

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AVERAGE BALANCE SHEETS -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands)
	Three Months Ended
	September 30, 2014			June 30, 2014			March 31, 2014			December 31, 2013			September 30, 2013
ASSETS
Interest-bearing cash and cash equivalents	$	1,217,942		$	635,140		$	549,473		$	559,918		$	654,591
Trading securities	107,909			116,186			92,409			127,011			124,689
Investment securities	641,375			658,793			671,756			672,722			621,104
Available for sale securities	9,526,727			9,800,934			10,076,942			10,434,810			10,558,677
Fair value option securities	180,268			164,684			165,515			167,490			169,299
Restricted equity securities	142,418			97,016			85,234			123,009			155,938
Residential mortgage loans held for sale	310,924			219,308			185,196			217,811			225,789
Loans:
Commercial	8,468,575			8,266,455			7,971,712			7,737,883			7,602,950
Commercial real estate	2,691,318			2,622,866			2,605,264			2,352,915			2,359,120
Residential mortgage	1,955,769			1,983,926			1,998,620			1,998,980			2,043,332
Consumer	402,916			391,214			372,330			371,798			396,694
Total loans	13,518,578			13,264,461			12,947,926			12,461,576			12,402,096
Allowance for loan losses	(191,141		)	(189,329		)	(186,979		)	(193,309		)	(201,616		)
Total loans, net	13,327,437			13,075,132			12,760,947			12,268,267			12,200,480
Total earning assets	25,455,000			24,767,193			24,587,472			24,571,038			24,710,567
Cash and due from banks	493,200			481,944			473,758			324,349			386,331
Derivative contracts, net	288,682			291,325			287,363			314,530			377,664
Cash surrender value of bank-owned life insurance	290,044			287,725			285,592			283,289			280,909
Receivable on unsettled securities sales	63,277			108,825			114,708			83,016			90,014
Other assets	1,525,354			1,549,809			1,489,875			1,526,566			1,409,247
TOTAL ASSETS	$	28,115,557		$	27,486,821		$	27,238,768		$	27,102,788		$	27,254,732
LIABILITIES AND EQUITY
Deposits:
Demand	$	7,800,350		$	7,654,225		$	7,312,076		$	7,356,063		$	7,110,079
Interest-bearing transaction	9,473,575			9,850,991			9,900,823			9,486,136			9,276,136
Savings	342,488			355,459			336,576			323,123			317,912
Time	2,610,561			2,636,444			2,686,041			2,710,019			2,742,970
Total deposits	20,226,974			20,497,119			20,235,516			19,875,341			19,447,097
Funds purchased	320,817			574,926			1,021,755			748,074			776,356
Repurchase agreements	1,027,206			914,892			773,127			752,286			799,175
Other borrowings	2,333,961			1,294,932			1,038,747			1,551,591			2,175,747
Subordinated debentures	347,914			347,868			347,824			347,781			347,737
Derivative contracts, net	270,998			243,619			258,729			294,315			330,819
Due on unsettled securities purchases	124,952			166,521			116,295			152,078			111,998
Other liabilities	214,306			270,220			341,701			327,519			300,880
TOTAL LIABILITIES	24,867,128			24,310,097			24,133,694			24,048,985			24,289,809
Total equity	3,248,429			3,176,724			3,105,074			3,053,803			2,964,923
TOTAL LIABILITIES AND EQUITY	$	28,115,557		$	27,486,821		$	27,238,768		$	27,102,788		$	27,254,732

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STATEMENTS OF EARNINGS -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands, except per share data)
	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2013			2014			2013
Interest revenue	$	183,868		$	185,428		$	545,619		$	562,251
Interest expense	17,077			17,539			50,089			54,018
Net interest revenue	166,791			167,889			495,530			508,233
Provision for credit losses	—			(8,500		)	—			(16,500		)
Net interest revenue after provision for credit losses	166,791			176,389			495,530			524,733
Other operating revenue:
Brokerage and trading revenue	35,263			32,338			103,835			96,963
Transaction card revenue	31,578			30,055			92,222			87,689
Fiduciary and asset management revenue	29,738			23,892			85,003			71,008
Deposit service charges and fees	22,508			24,742			68,330			71,670
Mortgage banking revenue	26,814			23,486			78,988			100,058
Bank-owned life insurance	2,326			2,408			6,706			7,870
Other revenue	10,320			8,314			28,380			26,214
Total fees and commissions	158,547			145,235			463,464			461,472
Loss on other assets, net	(501		)	(377		)	(4,817		)	(1,576		)
Gain (loss) on derivatives, net	(93		)	31			1,706			(3,437		)
Gain (loss) on fair value option securities, net	(332		)	(80		)	6,504			(12,407		)
Change in fair value of mortgage servicing rights	5,281			(346		)	(5,624		)	16,627
Gain on available for sale securities, net	146			478			1,390			9,086
Total other-than-temporary impairment losses	—			(1,436		)	—			(2,574		)
Portion of loss recognized in (reclassified from) other comprehensive income	—			(73		)	—			266
Net impairment losses recognized in earnings	—			(1,509		)	—			(2,308		)
Total other operating revenue	163,048			143,432			462,623			467,457
Other operating expense:
Personnel	123,043			125,799			351,190			379,563
Business promotion	6,160			5,355			19,151			16,578
Charitable contributions to BOKF Foundation	—			2,062			2,420			2,062
Professional fees and services	14,763			7,183			33,382			22,549
Net occupancy and equipment	18,892			17,280			54,577			50,670
Insurance	4,793			3,939			13,801			11,728
Data processing and communications	29,971			25,695			86,177			77,879
Printing, postage and supplies	3,380			3,505			10,350			10,759
Net losses and operating expenses of repossessed assets	4,966			2,014			7,516			3,542
Amortization of intangible assets	1,100			835			2,865			2,586
Mortgage banking costs	7,734			8,753			19,328			24,017
Other expense	7,032			7,878			20,888			23,268
Total other operating expense	221,834			210,298			621,645			625,201
Net income before taxes	108,005			109,523			336,508			366,989
Federal and state income taxes	31,879			33,461			106,610			121,980
Net income	76,126			76,062			229,898			245,009
Net income attributable to non-controlling interests	494			324			1,781			1,376
Net income attributable to BOK Financial Corporation shareholders	$	75,632		$	75,738		$	228,117		$	243,633
Average shares outstanding:
Basic	68,455,866			68,049,179			68,364,549			67,953,253
Diluted	68,609,765			68,272,861			68,520,591			68,175,915
Net income per share:
Basic	$	1.09		$	1.10		$	3.30		$	3.55
Diluted	$	1.09		$	1.10		$	3.29		$	3.54

11

FINANCIAL HIGHLIGHTS -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands, except ratio and share data)
	Three Months Ended
	September 30, 2014			June 30, 2014			March 31, 2014			December 31, 2013			September 30, 2013
Capital:
Period-end shareholders' equity	$	3,243,093		$	3,212,517		$	3,109,925		$	3,020,049		$	2,991,244
Risk weighted assets	$	20,507,015		$	20,216,268		$	19,720,418		$	19,389,381		$	19,366,620
Risk-based capital ratios:
Tier 1	13.71		%	13.63		%	13.77		%	13.77		%	13.51		%
Total capital	15.09		%	15.38		%	15.55		%	15.56		%	15.35		%
Leverage ratio	10.22		%	10.26		%	10.17		%	10.05		%	9.80		%
Tangible common equity ratio1	9.86		%	10.20		%	10.06		%	9.90		%	9.73		%
Tier 1 common equity ratio	13.54		%	13.46		%	13.59		%	13.59		%	13.33		%
Common stock:
Book value per share	$	46.77		$	46.39		$	45.00		$	43.88		$	43.49
Market value per share:
High	$	69.56		$	70.66		$	69.69		$	66.32		$	69.36
Low	$	63.36		$	61.64		$	62.34		$	60.81		$	62.93
Cash dividends paid	$	27,705		$	27,706		$	27,637		$	27,523		$	26,135
Dividend payout ratio	36.63		%	36.51		%	36.08		%	37.72		%	34.51		%
Shares outstanding, net	69,344,082			69,256,958			69,111,167			68,829,450			68,787,584
Performance ratios (quarter annualized):
Return on average assets	1.07		%	1.11		%	1.14		%	1.07		%	1.10		%
Return on average equity	9.24		%	9.58		%	10.00		%	9.48		%	10.13		%
Net interest margin	2.67		%	2.75		%	2.71		%	2.74		%	2.75		%
Efficiency ratio	66.79		%	63.62		%	59.69		%	68.50		%	66.03		%
Reconciliation of non-GAAP measures:
1      Tangible common equity ratio:
Total shareholders' equity	$	3,243,093		$	3,212,517		$	3,109,925		$	3,020,049		$	2,991,244
Less: Goodwill and intangible assets, net	(413,256		)	(414,356		)	(396,131		)	(384,323		)	(385,166		)
Tangible common equity	$	2,829,837		$	2,798,161		$	2,713,794		$	2,635,726		$	2,606,078
Total assets	$	29,105,020		$	27,843,770		$	27,364,714		$	27,015,432		$	27,166,367
Less: Goodwill and intangible assets, net	(413,256		)	(414,356		)	(396,131		)	(384,323		)	(385,166		)
Tangible assets	$	28,691,764		$	27,429,414		$	26,968,583		$	26,631,109		$	26,781,201
Tangible common equity ratio	9.86		%	10.20		%	10.06		%	9.90		%	9.73		%
Estimated Tier 1 common equity ratio under fully phased-in Basel III:
Tier 1 common equity under existing Basel I	$	2,777,436
Estimated adjustments	(33,000		)
Estimated Tier 1 common equity under fully phased-in Basel III	$	2,744,436
Risk weighted assets	$	20,507,015
Estimated adjustments	1,275,000
Estimated risk weighted assets under fully phased-in Basel III	$	21,782,015
Estimated Tier 1 common equity under fully phased-in Basel III	12.60		%

12

FINANCIAL HIGHLIGHTS -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands, except ratio and share data)
	Three Months Ended
	September 30, 2014			June 30, 2014			March 31, 2014			December 31, 2013			September 30, 2013
Other data:
Fiduciary assets	$	34,020,442		$	32,716,648		$	31,296,565		$	30,137,092		$	29,593,140
Tax equivalent adjustment	$	2,739		$	2,803		$	2,551		$	2,467		$	2,565
Net unrealized gain (loss) on available for sale securities	$	42,935		$	85,480		$	15,446		$	(37,929	)	$	7,425
Mortgage banking:
Mortgage servicing portfolio	$	15,499,653		$	14,626,291		$	14,045,642		$	13,718,942		$	13,298,479
Mortgage commitments	$	537,975		$	546,864		$	387,755		$	258,873		$	351,196
Mortgage loans funded for sale	$	1,394,211		$	1,090,629		$	727,516		$	848,870		$	1,080,167
Mortgage loan refinances to total fundings	26		%	25		%	32		%	29		%	30		%
Net realized gains on mortgage loans sold	$	17,100		$	12,746		$	9,179		$	12,162		$	19,440
Change in net unrealized gains on mortgage loans held for sale	(3,110		)	5,052			2,797			(6,808		)	11,618
Change in fair value of mortgage loan commitments	(5,136		)	7,581			3,379			(8,292		)	12,657
Change in fair value of forward sales contracts	5,839			(7,652		)	(3,903		)	13,669			(31,167		)
Total production revenue	14,693			17,727			11,452			10,731			12,548
Servicing revenue	12,121			11,603			11,392			11,145			10,938
Total mortgage banking revenue	$	26,814		$	29,330		$	22,844		$	21,876		$	23,486
Gain (loss) on mortgage servicing rights, net of economic hedge:
Gain (loss) on mortgage hedge derivative contracts, net	$	(93	)	$	831		$	968		$	(931	)	$	31
Gain (loss) on fair value option securities, net	(341		)	4,074			2,585			(3,013		)	(89		)
Gain (loss) on economic hedge of mortgage servicing rights	(434		)	4,905			3,553			(3,944		)	(58		)
Gain (loss) on changes in fair value of mortgage servicing rights	5,281			(6,444		)	(4,461		)	6,093			(346		)
Gain (loss) on changes in fair value of mortgage servicing rights, net of economic hedges	$	4,847		$	(1,539	)	$	(908	)	$	2,149		$	(404	)
Net interest revenue on fair value option securities	$	830		$	721		$	790		$	811		$	741

13

QUARTERLY EARNINGS TREND -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands, except ratio and per share data)
	Three Months Ended
	September 30, 2014			June 30, 2014			March 31, 2014			December 31, 2013			September 30, 2013
Interest revenue	$	183,868		$	182,631		$	179,120		$	183,120		$	185,428
Interest expense	17,077			16,534			16,478			16,876			17,539
Net interest revenue	166,791			166,097			162,642			166,244			167,889
Provision for credit losses	—			—			—			(11,400		)	(8,500		)
Net interest revenue after provision for credit losses	166,791			166,097			162,642			177,644			176,389
Other operating revenue:
Brokerage and trading revenue	35,263			39,056			29,516			28,515			32,338
Transaction card revenue	31,578			31,510			29,134			29,134			30,055
Fiduciary and asset management revenue	29,738			29,543			25,722			25,074			23,892
Deposit service charges and fees	22,508			23,133			22,689			23,440			24,742
Mortgage banking revenue	26,814			29,330			22,844			21,876			23,486
Bank-owned life insurance	2,326			2,274			2,106			2,285			2,408
Other revenue	10,320			9,208			8,852			12,048			8,314
Total fees and commissions	158,547			164,054			140,863			142,372			145,235
Gain (loss) on other assets, net	(501		)	(52		)	(4,264		)	651			(377		)
Gain (loss) on derivatives, net	(93		)	831			968			(930		)	31
Gain (loss) on fair value option securities, net	(332		)	4,176			2,660			(2,805		)	(80		)
Change in fair value of mortgage servicing rights	5,281			(6,444		)	(4,461		)	6,093			(346		)
Gain on available for sale securities, net	146			4			1,240			1,634			478
Total other-than-temporary impairment losses	—			—			—			—			(1,436		)
Portion of loss recognized in (reclassified from) other comprehensive income	—			—			—			—			(73		)
Net impairment losses recognized in earnings	—			—			—			—			(1,509		)
Total other operating revenue	163,048			162,569			137,006			147,015			143,432
Other operating expense:
Personnel	123,043			123,714			104,433			125,662			125,799
Business promotion	6,160			7,150			5,841			6,020			5,355
Charitable contributions to BOKF Foundation	—			—			2,420			—			2,062
Professional fees and services	14,763			11,054			7,565			10,003			7,183
Net occupancy and equipment	18,892			18,789			16,896			19,103			17,280
Insurance	4,793			4,467			4,541			4,394			3,939
Data processing and communications	29,971			29,071			27,135			28,196			25,695
Printing, postage and supplies	3,380			3,429			3,541			3,126			3,505
Net losses and operating expenses of repossessed assets	4,966			1,118			1,432			1,618			2,014
Amortization of intangible assets	1,100			949			816			842			835
Mortgage banking costs	7,734			7,960			3,634			7,071			8,753
Other expense	7,032			7,006			6,850			9,384			7,878
Total other operating expense	221,834			214,707			185,104			215,419			210,298
Net income before taxes	108,005			113,959			114,544			109,240			109,523
Federal and state income taxes	31,879			37,230			37,501			35,318			33,461
Net income	76,126			76,729			77,043			73,922			76,062
Net income attributable to non-controlling interests	494			834			453			946			324
Net income attributable to BOK Financial Corporation shareholders	$	75,632		$	75,895		$	76,590		$	72,976		$	75,738
Average shares outstanding:
Basic	68,455,866			68,359,945			68,273,685			68,095,254			68,049,179
Diluted	68,609,765			68,511,378			68,436,478			68,293,758			68,272,861
Net income per share:
Basic	$	1.09		$	1.10		$	1.11		$	1.06		$	1.10
Diluted	$	1.09		$	1.10		$	1.11		$	1.06		$	1.10

14

LOANS TREND -- UNAUDITED BOK FINANCIAL CORPORATION (In thousands)
	September 30, 2014		June 30, 2014		March 31, 2014		December 31, 2013		September 30, 2013
Commercial:
Energy	$	2,551,699	$	2,419,788	$	2,344,072	$	2,351,760	$	2,311,991
Services	2,487,817		2,377,065		2,232,471		2,282,210		2,148,551
Wholesale/retail	1,273,241		1,318,151		1,225,990		1,201,364		1,181,806
Manufacturing	479,543		452,866		444,215		391,751		382,460
Healthcare	1,382,399		1,394,156		1,396,562		1,274,246		1,160,212
Other commercial and industrial	397,339		405,635		408,396		441,890		386,055
Total commercial	8,572,038		8,367,661		8,051,706		7,943,221		7,571,075
Commercial real estate:
Residential construction and land development	175,228		184,779		184,820		206,258		216,456
Retail	611,265		642,110		640,506		586,047		556,918
Office	438,909		394,217		436,264		411,499		422,043
Multifamily	739,757		677,403		662,674		576,502		520,454
Industrial	371,426		342,080		305,207		243,877		245,022
Other commercial real estate	387,614		414,389		401,936		391,170		388,336
Total commercial real estate	2,724,199		2,654,978		2,631,407		2,415,353		2,349,229
Residential mortgage:
Permanent mortgage	991,107		1,020,928		1,033,572		1,062,744		1,078,661
Permanent mortgages guaranteed by U.S. government agencies	198,488		188,087		184,822		181,598		163,919
Home equity	790,068		799,200		800,281		807,684		792,185
Total residential mortgage	1,979,663		2,008,215		2,018,675		2,052,026		2,034,765
Consumer	407,839		396,004		376,066		381,664		395,031
Total	$	13,683,739	$	13,426,858	$	13,077,854	$	12,792,264	$	12,350,100

15

LOANS BY PRINCIPAL MARKET AREA -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands)
	September 30, 2014		June 30, 2014		March 31, 2014		December 31, 2013		September 30, 2013
Bank of Oklahoma:
Commercial	$	3,106,264	$	3,101,513	$	2,782,997	$	2,902,140	$	2,801,979
Commercial real estate	592,865		598,790		593,282		602,010		564,141
Residential mortgage	1,481,264		1,490,171		1,505,702		1,524,212		1,497,027
Consumer	193,207		187,914		179,733		192,283		207,360
Total Bank of Oklahoma	5,373,600		5,378,388		5,061,714		5,220,645		5,070,507
Bank of Texas:
Commercial	3,169,458		3,107,808		3,161,203		3,052,274		2,858,970
Commercial real estate	1,046,322		995,182		969,804		816,574		853,857
Residential mortgage	247,117		251,290		256,332		260,544		263,945
Consumer	148,965		147,322		136,782		131,297		129,144
Total Bank of Texas	4,611,862		4,501,602		4,524,121		4,260,689		4,105,916
Bank of Albuquerque:
Commercial	378,663		381,843		351,454		342,336		325,542
Commercial real estate	313,905		309,421		305,080		308,829		306,914
Residential mortgage	130,045		137,110		131,932		133,900		131,756
Consumer	11,714		12,346		12,972		13,842		14,583
Total Bank of Albuquerque	834,327		840,720		801,438		798,907		778,795
Bank of Arkansas:
Commercial	74,866		71,859		73,804		81,556		73,063
Commercial real estate	96,874		85,633		81,181		78,264		84,364
Residential mortgage	7,492		8,334		7,898		7,922		10,466
Consumer	5,508		6,323		6,881		8,023		9,426
Total Bank of Arkansas	184,740		172,149		169,764		175,765		177,319
Colorado State Bank & Trust:
Commercial	957,917		856,323		825,315		735,626		748,331
Commercial real estate	190,812		200,995		213,850		190,355		158,320
Residential mortgage	56,705		60,360		57,345		62,821		66,475
Consumer	24,812		23,330		22,095		22,686		22,592
Total Colorado State Bank & Trust	1,230,246		1,141,008		1,118,605		1,011,488		995,718
Bank of Arizona:
Commercial	500,208		446,814		453,799		417,702		379,817
Commercial real estate	316,698		292,799		301,266		257,477		250,129
Residential mortgage	39,256		41,059		42,899		47,111		49,109
Consumer	11,201		7,821		7,145		7,887		7,059
Total Bank of Arizona	867,363		788,493		805,109		730,177		686,114
Bank of Kansas City:
Commercial	384,662		401,501		403,134		411,587		383,373
Commercial real estate	166,723		172,158		166,944		161,844		131,504
Residential mortgage	17,784		19,891		16,567		15,516		15,987
Consumer	12,432		10,948		10,458		5,646		4,867
Total Bank of Kansas City	581,601		604,498		597,103		594,593		535,731
TOTAL BOK FINANCIAL	$	13,683,739	$	13,426,858	$	13,077,854	$	12,792,264	$	12,350,100

Loans attributed to a geographical region may not always represent the location of the borrower or the collateral.

16

DEPOSITS BY PRINCIPAL MARKET AREA -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands)
	September 30, 2014		June 30, 2014		March 31, 2014		December 31, 2013		September 30, 2013
Bank of Oklahoma:
Demand	$	3,915,560	$	3,785,922	$	3,476,876	$	3,432,940	$	3,442,831
Interest-bearing:
Transaction	5,450,692		5,997,474		6,148,712		6,318,045		5,565,462
Savings	201,690		210,330		211,770		191,880		189,186
Time	1,292,738		1,195,586		1,209,002		1,214,507		1,197,617
Total interest-bearing	6,945,120		7,403,390		7,569,484		7,724,432		6,952,265
Total Bank of Oklahoma	10,860,680		11,189,312		11,046,360		11,157,372		10,395,096
Bank of Texas:
Demand	2,636,713		2,617,194		2,513,729		2,481,603		2,498,668
Interest-bearing:
Transaction	2,020,737		1,957,236		1,967,107		1,966,580		1,853,586
Savings	66,798		67,012		70,890		64,632		63,368
Time	569,929		606,248		621,925		638,465		667,873
Total interest-bearing	2,657,464		2,630,496		2,659,922		2,669,677		2,584,827
Total Bank of Texas	5,294,177		5,247,690		5,173,651		5,151,280		5,083,495
Bank of Albuquerque:
Demand	480,023		515,554		524,191		502,395		491,894
Interest-bearing:
Transaction	502,787		489,378		516,734		529,140		541,565
Savings	36,127		36,442		37,481		33,944		34,003
Time	303,074		309,540		320,352		327,281		334,946
Total interest-bearing	841,988		835,360		874,567		890,365		910,514
Total Bank of Albuquerque	1,322,011		1,350,914		1,398,758		1,392,760		1,402,408
Bank of Arkansas:
Demand	35,075		44,471		40,026		38,566		33,378
Interest-bearing:
Transaction	234,063		205,216		212,144		144,018		205,891
Savings	2,222		2,287		2,264		1,986		1,919
Time	38,811		41,155		32,312		32,949		35,184
Total interest-bearing	275,096		248,658		246,720		178,953		242,994
Total Bank of Arkansas	310,171		293,129		286,746		217,519		276,372
Colorado State Bank & Trust:
Demand	422,044		396,185		399,820		409,942		375,060
Interest-bearing:
Transaction	571,807		566,320		536,438		541,675		536,734
Savings	29,768		29,234		28,973		26,880		27,782
Time	372,401		385,252		399,948		407,088		424,225
Total interest-bearing	973,976		980,806		965,359		975,643		988,741
Total Colorado State Bank & Trust	1,396,020		1,376,991		1,365,179		1,385,585		1,363,801

17

DEPOSITS BY PRINCIPAL MARKET AREA -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands)
	September 30, 2014		June 30, 2014		March 31, 2014		December 31, 2013		September 30, 2013
Bank of Arizona:
Demand	279,811		293,836		265,149		204,092		188,365
Interest-bearing:
Transaction	336,584		379,170		409,200		364,736		339,158
Savings	3,718		2,813		2,711		2,432		2,511
Time	38,842		37,666		37,989		34,391		36,285
Total interest-bearing	379,144		419,649		449,900		401,559		377,954
Total Bank of Arizona	658,955		713,485		715,049		605,651		566,319
Bank of Kansas City:
Demand	268,903		254,843		252,496		246,739		301,780
Interest-bearing:
Transaction	128,039		103,610		109,321		69,857		77,414
Savings	1,315		1,511		1,507		1,252		1,080
Time	48,785		40,379		40,646		41,312		23,890
Total interest-bearing	178,139		145,500		151,474		112,421		102,384
Total Bank of Kansas City	447,042		400,343		403,970		359,160		404,164
TOTAL BOK FINANCIAL	$	20,289,056	$	20,571,864	$	20,389,713	$	20,269,327	$	19,491,655

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NET INTEREST MARGIN TREND -- UNAUDITED BOK FINANCIAL CORPORATION
	Three Months Ended
	September 30, 2014		June 30, 2014		March 31, 2014		December 31, 2013		September 30, 2013
TAX-EQUIVALENT ASSETS YIELDS
Interest-bearing cash and cash equivalents	0.20	%	0.24	%	0.20	%	0.18	%	0.22	%
Trading securities	2.67	%	2.40	%	2.85	%	1.73	%	2.25	%
Investment securities:
Taxable	5.66	%	5.64	%	5.64	%	5.75	%	5.78	%
Tax-exempt	1.56	%	1.63	%	1.67	%	1.66	%	1.60	%
Total investment securities	3.03	%	3.01	%	3.04	%	3.12	%	3.22	%
Available for sale securities:
Taxable	1.94	%	1.94	%	1.90	%	1.89	%	1.92	%
Tax-exempt	3.14	%	4.44	%	3.11	%	2.74	%	2.81	%
Total available for sale securities	1.95	%	1.96	%	1.91	%	1.89	%	1.93	%
Fair value option securities	2.05	%	1.94	%	1.99	%	2.06	%	1.80	%
Restricted equity securities	5.99	%	5.26	%	4.68	%	5.06	%	3.05	%
Residential mortgage loans held for sale	3.79	%	4.63	%	3.46	%	4.16	%	3.87	%
Loans	3.78	%	3.85	%	3.89	%	4.01	%	4.06	%
Allowance for loan losses
Loans, net of allowance	3.83	%	3.91	%	3.95	%	4.07	%	4.13	%
Total tax-equivalent yield on earning assets	2.93	%	3.02	%	2.99	%	3.02	%	3.03	%
COST OF INTEREST-BEARING LIABILITIES
Interest-bearing deposits:
Interest-bearing transaction	0.10	%	0.10	%	0.10	%	0.11	%	0.11	%
Savings	0.12	%	0.12	%	0.12	%	0.12	%	0.13	%
Time	1.56	%	1.55	%	1.56	%	1.55	%	1.55	%
Total interest-bearing deposits	0.41	%	0.40	%	0.41	%	0.42	%	0.43	%
Funds purchased	0.07	%	0.07	%	0.06	%	0.08	%	0.07	%
Repurchase agreements	0.05	%	0.08	%	0.08	%	0.06	%	0.06	%
Other borrowings	0.34	%	0.40	%	0.40	%	0.31	%	0.28	%
Subordinated debt	2.46	%	2.52	%	2.52	%	2.48	%	2.52	%
Total cost of interest-bearing liabilities	0.41	%	0.42	%	0.41	%	0.42	%	0.42	%
Tax-equivalent net interest revenue spread	2.52	%	2.60	%	2.58	%	2.60	%	2.61	%
Effect of noninterest-bearing funding sources and other	0.15	%	0.15	%	0.13	%	0.14	%	0.14	%
Tax-equivalent net interest margin	2.67	%	2.75	%	2.71	%	2.74	%	2.75	%

Yield calculations are shown on a tax equivalent basis at the statutory federal and state rates for the periods presented. The yield calculations exclude security trades that have been recorded on trade date with no corresponding interest income and the unrealized gains and losses. The yield calculation also includes average loan balances for which the accrual of interest has been discontinued and are net of unearned income. Yield/rate calculations are generally based on the conventions that determine how interest income and expense is accrued.

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CREDIT QUALITY INDICATORS -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands, except ratios)
	Three Months Ended
	September 30, 2014		June 30, 2014		March 31, 2014		December 31, 2013		September 30, 2013
Nonperforming assets:
Nonaccruing loans:
Commercial	$	16,404	$	17,103	$	19,047	$	16,760	$	19,522
Commercial real estate	30,660		34,472		39,305		40,850		52,502
Residential mortgage	48,907		44,340		45,380		42,320		39,256
Consumer	580		765		974		1,219		1,624
Total nonaccruing loans	96,551		96,680		104,706		101,149		112,904
Accruing renegotiated loans guaranteed by U.S. government agencies	70,459		57,818		55,507		54,322		50,099
Real estate and other repossessed assets:
Guaranteed by U.S. government agencies	46,809		49,720		45,638		37,431		37,906
Other	51,062		50,391		49,877		54,841		70,216
Total real estate and other repossessed assets	97,871		100,111		95,515		92,272		108,122
Total nonperforming assets	$	264,881	$	254,609	$	255,728	$	247,743	$	271,125
Total nonperforming assets excluding those guaranteed by U.S. government agencies	$	143,778	$	145,124	$	153,011	$	155,213	$	182,543
Nonaccruing loans by loan class:
Commercial:
Energy	$	1,508	$	1,619	$	1,759	$	1,860	$	1,953
Services	3,584		3,669		4,581		4,922		6,927
Wholesale / retail	5,502		5,885		6,854		6,969		7,223
Manufacturing	3,482		3,507		3,565		592		843
Healthcare	1,417		1,422		1,443		1,586		1,733
Other commercial and industrial	911		1,001		845		831		843
Total commercial	16,404		17,103		19,047		16,760		19,522
Commercial real estate:
Residential construction and land development	14,634		15,146		16,547		17,377		20,784
Retail	4,009		4,199		4,626		4,857		7,914
Office	3,499		3,591		6,301		6,391		6,838
Multifamily	—		—		—		7		4,350
Industrial	—		631		886		252		—
Other commercial real estate	8,518		10,905		10,945		11,966		12,616
Total commercial real estate	30,660		34,472		39,305		40,850		52,502
Residential mortgage:
Permanent mortgage	35,137		32,952		36,342		34,279		31,797
Permanent mortgage guaranteed by U.S. government agencies	3,835		1,947		1,572		777		577
Home equity	9,935		9,441		7,466		7,264		6,882
Total residential mortgage	48,907		44,340		45,380		42,320		39,256
Consumer	580		765		974		1,219		1,624
Total nonaccruing loans	$	96,551	$	96,680	$	104,706	$	101,149	$	112,904

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CREDIT QUALITY INDICATORS -- UNAUDITED BOK FINANCIAL CORPORATION (in thousands, except ratios)
	Three Months Ended
	September 30, 2014			June 30, 2014			March 31, 2014			December 31, 2013			September 30, 2013
Performing loans 90 days past due1	$	25		$	67		$	1,991		$	1,415		$	188
Gross charge-offs	$	(2,638	)	$	(3,522	)	$	(2,848	)	$	(3,113	)	$	(4,708	)
Recoveries	3,114			5,524			5,360			6,068			4,409
Net recoveries (charge-offs)	$	476		$	2,002		$	2,512		$	2,955		$	(299	)
Provision for credit losses	$	—		$	—		$	—		$	(11,400	)	$	(8,500	)
Allowance for loan losses to period end loans	1.40		%	1.42		%	1.44		%	1.45		%	1.57		%
Combined allowance for credit losses to period end loans	1.41		%	1.43		%	1.45		%	1.47		%	1.59		%
Nonperforming assets to period end loans and repossessed assets	1.92		%	1.88		%	1.94		%	1.92		%	2.18		%
Net charge-offs (annualized) to average loans	(0.01		)%	(0.06		)%	(0.08		)%	(0.09		)%	0.01		%
Allowance for loan losses to nonaccruing loans	198.08		%	197.24		%	179.86		%	183.29		%	172.12		%
Combined allowance for credit losses to nonaccruing loans	199.35		%	198.59		%	181.46		%	185.35		%	173.54		%
1   Excludes residential mortgage loans guaranteed by agencies of the U.S. government.

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