EXHIBIT 99 (a)

NASD: BOKF

For Further Information Contact:          Steven Nell
                                          Chief Financial Officer
                                          (918) 588-6000

                                          Kayte Spillman
                                          Assistant Vice President
                                          Corporate Communications Specialist
                                          BOK Financial Corp.
                                          (918) 588-6378

                  BOK FINANCIAL REPORTS THIRD QUARTER EARNINGS
             Strong Balance Sheet Growth and Stable Margin Continue

TULSA, Okla.  (Tuesday,  October 17, 2006) - BOK Financial  Corporation reported
earnings of $52.7  million or $0.78 per diluted  share for the third  quarter of
2006, up 4% over the third quarter of 2005.  Net income for the third quarter of
2005 totaled $50.8 million or $0.76 per diluted share.

Highlights of the quarter included:

o    Average  outstanding  loans and  average  deposits  increased  14% and 13%,
     respectively over the third quarter of 2005

o    Net  interest  revenue  grew $11.2  million or 10% over last  year's  third
     quarter, 9% annualized over the second quarter of 2006

o    Net interest margin was 3.38%, up from 3.32% over the third quarter of last
     year and stable throughout 2006

o    Fee income increased $2.7 million or 3% over the third quarter of 2005

o    Fair value of mortgage  servicing  rights  declined  $4.2  million,  net of
     hedging gains during the third quarter

o    Other  operating  expenses  increased $9.2 million or 8%,  including a $1.8
     million  non-cash  charge related to taxes on a $202 million  investment in
     bank-owned life insurance; personnel costs were up $8.1 million

o    Income tax expense was reduced $2.2 million for the resolution of uncertain
     tax issues

o    Non-performing  loans,  annualized  net  charge-offs  continued  to be near
     historic lows



"We were pleased to see the continuation of double digit loan and deposit growth
while   maintaining  a  stable  net  interest  margin  in  a  very   competitive
environment,"  said President and CEO Stan Lybarger.  "Our fee revenue  business
lines have long been a key strength of the Company,  but we clearly  experienced
slower growth during the third quarter."

Net Interest Revenue

Net interest  revenue  totaled  $124.0 million for the third quarter of 2006, up
$11.2 million or 10% over the same period of 2005.  Average  earning assets grew
$1.2 billion or 9%, due to a $1.2 billion increase in average outstanding loans.
Average  deposits  increased $1.3 billion or 13% compared with the third quarter
of 2005. Net interest  revenue was also improved by a $226 million  reduction in
short-term borrowed funds, which generally have a higher interest cost.

Net interest  margin was 3.38% for the third quarter of 2006 compared with 3.32%
for the third  quarter  of 2005 and 3.40% for the second  quarter  of 2006.  Net
interest  margin has remained  stable  throughout the first nine months of 2006.
While the spread  between  the yield on earning  assets and the cost of interest
bearing  liabilities  continued to narrow,  the Company  benefited from a strong
capital position.

Loans and Deposits

Outstanding loans totaled $10.0 billion at September 30, 2006, up $211 million
over previous quarter's end. Commercial loans totaled $5.7 billion at September
30, 2006, a $140 million increase. Commercial lFoans grew in all sectors of the
portfolio. The outstanding balance of commercial real estate loans remained
unchanged at $2.3 billion. Commercial real estate loan growth in the Arizona and
Colorado markets was largely offset by reductions in Texas and New Mexico.

Regional  markets  continue  to  increase  in  importance  to the  Company as we
continue to add experienced  bankers in each market. At September 30, 2006, $4.3
billion or 43% of  outstanding  loans  were  attributed  to  markets  outside of
Oklahoma.  Texas remained the largest regional market with $2.5 billion of loans
outstanding at the end of the third quarter. Pay downs of commercial real estate
loans reduced  outstanding  loans in the Texas market at a 4%  annualized  rate.
Outstanding  loans in the New Mexico,  Colorado and Arizona markets totaled $698
million,  $574 million and $313 million,  respectively.  Annualized  loan growth
during the third  quarter  was 24% in New  Mexico,  52% in  Colorado  and 86% in
Arizona.



Deposits  increased  $349 million  during the third  quarter to $11.7 billion at
September 30, 2006. Interest-bearing  transaction accounts grew $471 million, an
annualized rate of 38%. Rising interest rates led to a shift to interest-bearing
transaction accounts from demand deposits, which decreased $117 million.

Total deposits  increased $184 million or 12% annualized in the Oklahoma  market
and $104 million or 14% annualized in the Texas market. In addition, deposits in
the Colorado  market  increased $65 million or 38%  annualized  during the third
quarter.

Fees and Commissions Revenue

Fees and  commissions  revenue  totaled  $93.0  million for the third quarter of
2006, up 3% from the same period last year.  Total fee revenue,  which  recently
had been growing at a low double digit rate,  slowed in most major categories of
fees and commissions. Mortgage banking revenue decreased $2.6 million or 27% due
largely to lower volumes.

"Volatile  mortgage  interest  rates  over  the past six  months  affected  this
quarter's  performance,"  said  Lybarger.  "Rising  rates in the second  quarter
reduced our loan production  pipeline coming into this quarter and falling rates
in the third quarter reduced the value of our servicing portfolio."

Brokerage  and trading  revenue  declined  $408 thousand or 4% from last year. A
flat yield curve reduced  revenue from trading  activities  $1.3 million or 20%.
Derivatives  revenue,  primarily from customer  energy  hedging,  increased $513
thousand or 21% over last year. Transaction card revenue grew $1.4 million or 8%
from both  check card and ATM  processing  fees.  The  Company  recently  signed
agreements to place ATMs with two large regional convenience store chains. Trust
revenue and deposit  services  charges  increased  $725  thousand or 4% and $703
thousand or 3%, respectively.  Overdraft fees, which provided much of the recent
growth in deposit  services  charges,  were up $915  thousand or 5%.  Investment
banking revenue,  which is included in other revenue,  increased $1.3 million. A
newly-developed tax-exempt leasing unit provided much of this revenue growth.

Mortgage Servicing Rights

Depreciation in the fair value of mortgage  servicing rights,  net of recognized
gains on economic hedges decreased pre-tax income by $4.2 million and net income
$2.7



million or $0.04 per diluted share during the third  quarter.  At the end of the
second  quarter,  a 50 basis  point  decrease  in  mortgage  interest  rates was
expected  to reduce the fair value of the  Company's  servicing  rights,  net of
economic hedge gains, by $659 thousand. Although average mortgage interest rates
fell 52 basis points,  increased  prepayment speeds and mortgage rate volatility
caused the third quarter's results to differ from  expectations.  Loans serviced
by BOK Financial  historically have prepaid at rates well-below national trends.
Although  still below  national  trends,  actual  prepayments  in our  servicing
portfolio  migrated  upward  during the third  quarter.  In  addition,  mortgage
interest rate volatility over the past two quarters  increased the  risk-premium
required by investors  further lowering the fair value of the servicing  rights.
Year-to-date,  the fair value of mortgage  servicing  rights,  net of recognized
losses on economic hedges, increased pre-tax income by $2.1 million.

Operating Expenses and Taxes

Operating  expenses,  excluding changes in the fair value of mortgage  servicing
rights,  totaled $130.9 million, up $9.2 million over the third quarter of 2005.
The third quarter of 2006  included a $1.8 million  non-cash  charge  related to
taxes on bank-owned life insurance.

Personnel  expense  totaled $74.6 million for the third quarter of 2006, up $8.1
million  over the third  quarter  of 2005.  Salaries  and wages  increased  $5.0
million or 12%. Average  compensation per employee  increased 8% and the average
number of employees increased 4%.

"We continued adding  experienced  bankers in the regional markets and in Kansas
City where we expect to open a bank in the fourth  quarter,"  Lybarger said. "We
also  increased  expenditures  related to product  development,  technology  and
support services.  These investments are expected to provide long-term  benefits
to the Company."

The  Company  reduced  its  provision  for income  taxes by $2.2  million  which
contributed  $0.03 to diluted  earnings per share. The statute of limitations on
an uncertain income tax position expired during the third quarter of 2006.

Credit Quality

Net loans  charged-off  during the third  quarter of 2006 totaled $4.3  million,
compared with $3.8 million in the previous quarter and $3.3 million in the third
quarter of 2005.




Non-performing  loans  totaled $41 million at September 30, 2006 and continue to
be at near-historic lows.

The combined  allowance for loan losses and reserve for off-balance sheet credit
losses  totaled  $127  million  or  1.28%  of  outstanding  loans  and  417%  of
non-accruing loans at September 30, 2006. The allowance for loan losses was $105
million and the reserve for off-balance sheet credit losses was $22 million.  At
June  30,  2006,  the  combined  allowance  for  loan  losses  and  reserve  for
off-balance  sheet credit  losses  totaled $126 million or 1.30% of  outstanding
loans and 408% of  non-accruing  loans.  The  allowance for loan losses was $105
million and the reserve for off-balance sheet credit losses was $21 million.

The  provision for credit losses for the third quarter of 2006 was $5.3 million,
compared  with $4.0  million for the third  quarter of 2005 and $3.8 million for
the second quarter of 2006.

About BOK Financial Corporation

BOK Financial is a regional financial services company that provides  commercial
and consumer banking,  investment and trust services,  mortgage  origination and
servicing,  and an electronic funds transfer  network.  Holdings include Bank of
Albuquerque,  N.A.,  Bank of Arizona,  N.A.,  Bank of  Arkansas,  N.A.,  Bank of
Oklahoma,  N.A.,  Bank of  Texas,  N.A.,  Colorado  State  Bank &  Trust,  N.A.,
BOSC,Inc., the TransFund electronic funds network, Southwest Trust Company, N.A.
and AXIA Investment  Management,  Inc. Shares of BOK Financial are traded on the
NASDAQ under the symbol BOKF. For more information, visit www.bokf.com.

Forward-looking Information

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.