EXHIBIT 11 COMPUTATION OF PER SHARE EARNINGS Quarter Ended Six Months Ended June 30, June 30, ----------------------- -------------------------- 1998 1997 1998 1997 ---- ---- ---- ---- Net Income ($000) $ 18,813 $ 10,611 $ 45,532 $ 20,229 Weighted Average Common Shares Outstanding 69,333,689 69,287,739 69,280,902 69,264,468 Basic Earnings Per Share $ 0.27 $ 0.15 $ 0.66 $ 0.29 Weighted Average Common Shares Outstanding Including Common Stock Equivalents - Fully Diluted Basis 69,984,671 69,738,945 69,961,595 69,715,674 Diluted Earnings Per Share $ 0.27 $ 0.15 $ 0.65 $ 0.29