Exhibit 11. MOBIL CORPORATION COMPUTATION OF EARNINGS PER COMMON SHARE (In millions, except for per-share amounts; number of shares in thousands) For the Three Months Ended March 31, -------------------- 1997 1998 -------- -------- Net Income ............................................... $ 826 $ 705 Less: dividends on preferred stock ....................... 13 13 ------ ------ Adjusted net income applicable to common shares .......... $ 813 $ 692 ====== ====== Weighted average number of basic common shares outstanding 788,149 782,117 ======= ======= Net income per common share .............................. $ 1.03 $ .88 ====== ====== Net Income ............................................... $ 826 $ 705 Less: additional contribution to ESOP .................... 2 1 Less: Stock Appreciation Rights compensation (expense) income ................................. (1) 4 ------ ------ Adjusted net income applicable to common shares .......... $ 825 $ 700 ====== ====== Weighted average number of basic common shares outstanding 788,149 782,117 Issuable on assumed exercise of stock options ............ 10,644 11,373 Assumed conversion of preferred stock .................... 17,502 17,000 ------- ------- Total ............................................... 816,296 810,490 ======= ======= Net income per common share -- assuming dilution ......... $ 1.01 $ .86 ====== ====== MOBIL - 17 -