EXHIBIT 11.1 COMPUTATION OF PER SHARE EARNINGS Three-Month, Nine-Month, and Twelve-Month Periods Ended September 30, 1996 Fully Three Months Ended September 30, 1996: Primary Diluted ====================================== ========== ========== Weighted Average Number of Shares: Average Common Shares Outstanding at September 30, 1996 61,061,196 61,061,196 Dilutive Effect for Nonqualified Stock Options at September 30, 1996 254,968 254,968 ---------- ---------- Weighted Average Shares at September 30, 1996 61,316,164 61,316,164 ========== ========== Net Income to Be Used to Compute Earnings Per Average Common Share: (Dollars in thousands) Net Income $ 34,410 $ 34,410 Dividend Requirements on Preferred Shares 0 0 ---------- ---------- Balance Available for Common Shareholders $ 34,410 $ 34,410 ========== ========== Earnings Per Average Common Share $ 0.56(a) $ 0.56(a) ========== ========== Fully Nine Months Ended September 30, 1996: Primary Diluted ===================================== ========== ========== Weighted Average Number of Shares: Average Common Shares Outstanding at September 30, 1996 61,451,974 61,451,974 Dilutive Effect for Nonqualified Stock Options at September 30, 1996 251,571 251,571 ---------- ---------- Weighted Average Shares at September 30, 1996 61,703,545 61,703,545 ========== ========== Net Income to Be Used to Compute Earnings Per Average Common Share: (Dollars in thousands) Net Income $ 125,325 $ 125,325 Dividend Requirements on Preferred Shares 119 119 ---------- ---------- Balance Available for Common Shareholders $ 125,206 $ 125,206 ========== ========== Earnings Per Average Common Share $ 2.02(a) $ 2.02(a) ========== ========== Fully Twelve Months Ended September 30, 1996: Primary Diluted ======================================= ========== ========== Weighted Average Number of Shares: Average Common Shares Outstanding at September 30, 1996 61,724,244 61,724,244 Dilutive Effect for Nonqualified Stock Options at September 30, 1996 235,117 235,117 ---------- ---------- Weighted Average Shares at September 30, 1996 61,959,361 61,959,361 ========== ========== Net Income to Be Used to Compute Earnings Per Average Common Share: (Dollars in thousands) Net Income $ 177,153 $ 177,153 Dividend Requirements on Preferred Shares 885 885 ---------- ---------- Balance Available for Common Shareholders $ 176,268 $ 176,268 ========== ========== Earnings Per Average Common Share $ 2.84(a) $ 2.84(a) ========== ========== <FN> (a) This calculation is submitted in accordance with regulation S-K item 601(b)(11) although not required by footnote 2 to paragraph 14 of APB Opinion No. 15 because it results in dilution of less than 3%.