EXHIBIT 11.1 Ethyl Corporation and Subsidiaries Computation of basic and diluted earnings per share for the years ended December 31, 2001, 2000 and 1999 (In thousands except per share amounts) 2001 2000 1999 ------- ------- ------- Net (loss)income applicable to common stock (1) $(105,040) $60,997 $55,297 ========= ======= ======= Average number of shares of common stock outstanding (2,3) 83,455 83,462 83,465 ========= ======= ======= Basic and diluted (loss) earnings per share $ (1.26) $ 0.73 $ 0.66 ========= ======= ======= Notes: (1) In the periods presented, the Company had only one class of common stock outstanding. (2) To determine the average number of shares of common stock and common stock equivalents, the average number of common shares and common stock equivalents outstanding (actual or assumed for equivalents) during each month were added together and the sum was then divided by 12. (3) For diluted earnings per share, the shares issuable upon the assumed exercise of outstanding stock options would be 0 for each period.