BOK FINANCIAL CORPORATION

                               EXHIBIT 11

                 STATEMENT REGARDING THE COMPUTATION OF
                           PER SHARE EARNINGS



                                                           1996           1995         1994
                                                     ------------------------------------------
                                                                               
COMPUTATION OF PRIMARY EARNINGS PER SHARE:
Primary Average Common Share Equivalents:
Common shares                                           21,111,892    21,091,029    21,120,023
Stock options                                              122,471        90,312        83,473
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Total primary average common share equivalents          21,234,363    21,181,341    21,203,496
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Income before Preferred Stock dividends                $54,127,000   $49,205,000   $45,065,000
Less stock dividends on Series A Preferred Stock         1,500,000     1,500,000     1,500,000
Less cash dividends on Citizens Holding Company                 --             -       113,000
 Preferred Stock
- -----------------------------------------------------------------------------------------------
 Net Income                                            $52,627,000   $47,705,000   $43,452,000
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Primary Earnings per Common Share Equivalent:
   Net Income                                          $      2.48   $      2.25   $      2.05             
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COMPUTATION OF FULLY DILUTED EARNINGS PER SHARE:
Fully Diluted Average Common Share Equivalents:
Common shares                                           21,111,892    21,091,029    21,120,023
Stock options                                              280,092        97,005        83,731
Series A preferred stock                                 2,813,773     2,813,773     2,813,773
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Total fully diluted average common share equivalents    24,205,757    24,001,807    24,017,527
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Income before Preferred Stock dividends                $54,127,000   $49,205,000   $45,065,000
Less cash dividends on Citizens Holding Company                 --             -       113,000
Preferred Stock
- -----------------------------------------------------------------------------------------------
 Net Income                                            $54,127,000   $49,205,000   $44,952,000
- -----------------------------------------------------------------------------------------------
Fully Diluted Earnings per Common Share Equivalent:
 Net Income                                            $      2.24   $      2.05   $      1.88                                     
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COMMON STOCK
     On November 14, 1994, BOK Financial issued 1,380,017 shares of Common Stock
to merge with Citizens  Holding Company and its  subsidiaries,  Citizens Bank of
Muskogee  and  Citizens  Bank of  Northwest  Arkansas in a  pooling-of-interests
transaction.  Common  shares have been restated to reflect these shares as being
outstanding for all periods presented.  During 1996, 1995 and 1994, 3% dividends
payable in shares of BOK Financial  common stock were declared and paid.  Common
shares have been restated to reflect these shares as being  outstanding  for all
periods.

STOCK OPTIONS
     BOK Financial  has various  stock option plans whereby each option  awarded
grants to the employee the right to purchase shares of Common Stock at the price
set forth  under the  respective  plan.  Options  awarded  under these plans are
subject to vesting  requirements.  Generally,  one-seventh  of the options  vest
annually and expire three years after  vesting.  Options were awarded  under the
1994 Plan in 1994,  1995, and 1996.  Canceled options under the 1994 Plan may be
reawarded.  The  common  share  equivalents  of  the  Stock  Option  Plans  were
determined  using the  treasury  stock  method,  whereby the  proceeds  from the
exercise of the options would be used to purchase  Common Stock at the quarterly
average market price for primary  average common share  equivalents,  and at the
greater of the quarterly  average  market price or  period-end  market price for
primary average common share equivalents.

SERIES A PREFERRED STOCK
     The preferred stock is convertible,  at the option of the holder,  into one
share Common Stock for each 89 shares of Series A Preferred Stock. BOK Financial
may elect to convert  all or part of the Series A  Preferred  Stock into  Common
Stock if BOK  Financial  shall  fail to meet the  published  minimum  risk-based
capital  ratios  applicable to BOK  Financial for a period of eight  consecutive
calendar quarters. During 1996, 1995 and 1994, 69,672 shares, 69,959 shares, and
65,279  shares of Common Stock were issued,  respectively,  by mutual  agreement
with the holders and in lieu of cash,  in payment of  dividends  on the Series A
Preferred  Stock.  Common  shares have been  restated to reflect these shares as
being  outstanding for all periods.  For the 1996, 1995 and 1994 calculations of
primary  earnings  per share,  net  income has been  reduced by the value of the
Common Stock issued in payment of dividends.
     Prior to its  merger  with BOK  Financial,  Citizens  Holding  Company  had
nonvoting  preferred  stock, on which it paid $113 thousand in cash dividends in
1994.  These preferred  shares were redeemed in full and canceled in conjunction
with Citizens' merger with BOK Financial.  For the 1994  calculations of primary
and fully diluted earnings per share, net income has been reduced by the payment
of cash dividends.