EXHIBIT 11 EARNINGS PER SHARE COMPUTATIONS (THOUSANDS OF DOLLARS, EXCEPT PER SHARE DATA) 1996 1995 1994 ------------ ------------ ------------ PRIMARY EARNINGS (LOSS) PER SHARE Earnings available for common shares and common stock equivalent shares deemed to have a dilutive effect: Earnings from operations.............................................. $ 42,964 44,677 2,704 Provision for cash dividends on preferred stock (Series B)............ (4,155) (4,522) (4,755) ------------ ------------ ------------ Net earnings (loss) available for common shares and common stock equivalent shares deemed to have a dilutive effect.................... $ 38,809 40,155 (2,051) ------------ ------------ ------------ ------------ ------------ ------------ Primary earnings (loss) per share....................................... $ 2.98 2.84 (0.15) ------------ ------------ ------------ ------------ ------------ ------------ SHARES USED IN COMPUTATION Weighted average common shares outstanding (net of treasury shares)..... 12,855,072 13,966,682 14,017,097 Common stock equivalents................................................ 182,043 156,950 -- ------------ ------------ ------------ Total common shares and common stock equivalent shares deemed to have a dilutive effect....................................................... 13,037,115 14,123,632 14,017,097 ------------ ------------ ------------ ------------ ------------ ------------ FULLY DILUTED EARNINGS (LOSS) PER SHARE Net earnings (loss) available for common shares and common stock equivalent shares deemed to have a dilutive effect.................... $ 42,964 44,677 2,704 ------------ ------------ ------------ ------------ ------------ ------------ Fully diluted earnings (loss) per share................................. $ 2.86 2.75 (0.15) ------------ ------------ ------------ ------------ ------------ ------------ SHARES USED IN COMPUTATION Total common shares and common stock equivalent shares deemed to have a dilutive effect....................................................... 13,037,115 14,123,632 14,017,097 Additional potentially dilutive securities (equivalent in common stock): Convertible preferred stock (Series B)................................ 1,945,314 2,116,875 -- Stock options......................................................... 30,089 28,502 -- ------------ ------------ ------------ Total................................................................. 15,012,518 16,269,009 14,017,097 ------------ ------------ ------------ ------------ ------------ ------------ SUMMARY OF CASH DIVIDENDS DECLARED PER SHARE Preferred-Series B...................................................... $ 1.69 1.69 1.69 Common.................................................................. $ 1.24 1.14 1.03 28