EXHIBIT 11 PATINA OIL & GAS CORPORATION COMPUTATION OF NET INCOME PER SHARE FOR THE YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996 (IN THOUSANDS EXCEPT PER SHARE DATA) 1994 1995 1996 ------- --------- -------- PRIMARY NET INCOME (LOSS) PER SHARE: Net income (loss) $ 2,950 $(2,094) $ 3,562 Dividends on preferred stock - - (2,129) ------- ------- ------- Net income (loss) available to common $ 2,950 $(2,094) $ 1,433 ======= ======= ======= Weighted average shares outstanding 14,000 14,000 17,787 Add common stock equivalents - - 9 ------- ------- ------- Weighted average common stock and equivalents outstanding 14,000 14,000 17,796 Net income (loss) applicable to common $ 0.21 $ (0.15) $0.08 ======= ======= ======= FULLY DILUTED NET INCOME (LOSS) PER SHARE: Net income (loss) $ 2,950 $(2,094) $ 3,562 Dividends on preferred stock - - - ------- ------- ------- Net income (loss) available to common $ 2,950 $(2,094) $ 3,562 ======= ======= ======= Weighted average shares outstanding 14,000 14,000 17,787 Add common stock equivalents - - 9 Other potentially dilutive securities - - 3,085 ------- ------- ------- Weighted average common stock and equivalents outstanding 14,000 14,000 20,881 Net income (loss) applicable to common $ 0.21 $ (0.15) $0.17 ======= ======= ======= Note: Fully diluted net income (loss) per share for 1994, 1995 and 1996 are not shown in the financial statements as the fully diluted net income (loss) per share equaled primary earnings per share in 1994 and 1995 and the fully diluted net income (loss) per share in 1996 was anti-dulutive. Therefore, only primary net income per share is disclosed in the financial statements.