EXHIBIT 11 HOMESTAKE MINING COMPANY AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (In thousands, except per share amounts) - ------------------------------------------------------------------------------------------------------------------------- 1998 1997 1996 - ------------------------------------------------------------------------------------------------------------------------- BASIC: Earnings: Net income (loss) $ (218,325) $ (230,606) $ 45,765 ================= ================= =============== Net income (loss) applicable to basic earnings per share calculation $ (218,325) $ (230,606) $ 45,765 ================= ================= =============== Weighted average number of shares outstanding 213,354 210,537 210,027 ================= ================= =============== Net income (loss) per share - basic $ (1.02) $ (1.10) $ 0.22 ================= ================= =============== DILUTED: Earnings: Net income (loss) $ (218,325) $ (230,606) $ 45,765 Add: Interest relating to 5.5% convertible subordinated notes, net of tax 8,250 6,517 6,517 Amortization of issuance costs relating to 5.5% convertible subordinated notes, net of tax 561 443 443 ----------------- ----------------- --------------- Net income (loss) applicable to diluted earnings per share calculation $ (209,514) $ (223,646) $ 52,725 ================= ================= =============== Weighted average number of shares outstanding: Common shares 213,354 210,537 210,027 Additional average shares outstanding assuming: Conversion of 5.5% convertible subordinated notes 6,505 6,505 6,505 ----------------- ----------------- --------------- 219,859 217,042 216,532 ================= ================= =============== Net income (loss) per share - diluted (a) $ (0.95) $ (1.03) $ 0.24 ================= ================= =============== <FN> (a) This calculation is submitted in accordance with Regulation S-K item 601(b)(11) although it is contrary to paragraph 13 of SFAS 128 because it produced an anti-dilutive result. </FN>