1 EXHIBIT 11.1 VALERO ENERGY CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS) Year Ended December 31, ----------------------------------------------- 1998 1997 1996 ------------ ----------- ----------- COMPUTATION OF BASIC EARNINGS PER SHARE: Income (loss) from continuing operations.............................. $ (47,291) $ 111,768 $ 22,472 ============ =========== =========== Income (loss) from discontinued operations, net of income taxes................................................ $ -- $ (15,672) $ 50,229 Less: Preferred stock dividend requirements and redemption premium............................................. -- (4,592) (11,327) ------------ ----------- ----------- Income (loss) from discontinued operations applicable to common stock......................................... $ -- $ (20,264) $ 38,902 ============ =========== =========== Weighted average number of shares of common stock outstanding........................................... 56,077,671 51,662,449 43,926,026 ============ =========== =========== Earnings (loss) per share: Continuing operations.............................................. $ (.84) $ 2.16 $ .51 Discontinued operations............................................ -- (.39) .89 ------------ ----------- ----------- Total........................................................... $ (.84) $ 1.77 $ 1.40 ============ =========== =========== COMPUTATION OF EARNINGS PER SHARE ASSUMING DILUTION: Income (loss) from continuing operations assuming dilution............ $ (47,291) $ 111,768 $ 22,472 ============ =========== =========== Income (loss) from discontinued operations, net of income taxes....................................................... $ -- $ (15,672) $ 50,229 Less: Preferred stock dividend requirements and redemption premium............................................. -- (4,592) (11,327) Add: Reduction of preferred stock dividends applicable to the assumed conversion of Convertible Preferred Stock at the beginning of the period..................................... -- 4,522 10,781 ------------ ----------- ----------- Income (loss) from discontinued operations applicable to common stock assuming full dilution ............................... $ -- $ (15,742) $ 49,683 ============ =========== =========== Weighted average number of shares of common stock outstanding........................................... 56,077,671 51,662,449 43,926,026 Effect of dilutive securities: Stock options...................................................... --(a) 880,864 424,986 Performance awards................................................. --(a) 91,151 44,050 Convertible preferred stock........................................ -- 2,494,905 6,381,798 ------------ ----------- ----------- Weighted average number of shares of common stock outstanding assuming dilution.......................... 56,077,671 55,129,369 50,776,860 ============ =========== =========== Earnings (loss) per share - assuming dilution: Continuing operations.............................................. $ (.84) $ 2.03 $ .44 Discontinued operations............................................ -- (.29) .98 ------------ ----------- ----------- Total........................................................... $ (.84) $ 1.74 $ 1.42 ============ =========== =========== (a) Various stock options and performance awards granted to employees in connection with the Company's stock compensation plans were outstanding during 1998 but were not included in the computation of diluted earnings per share from continuing operations for such period because the effect would have been antidilutive.