EXHIBIT 11 To Cyprus Amax Minerals Company's Quarterly Report on Form 10-Q For the Quarter Ended September 30, 1999 -22- EXHIBIT 11 CYPRUS AMAX MINERALS COMPANY & SUBSIDIARIES ------------- Computation of Per Share Earnings (In millions except per share data) Three Months Nine Months Ended September 30, Ended September 30, ----------------------------------- ---------------------------------- 1999 1998 1999 1998 -------------- --------------- -------------- -------------- Net Income (Loss) from Continuing Operations $ (75) $ (5) $ (151) $ (58) Net Income (Loss) from Discontinued Domestic Coal Division, Net of Taxes $ - $ 24 $ 3 $ 45 -------------- --------------- -------------- -------------- Net Income (Loss) $ (75) $ 19 $ (148) $ (13) Preferred Stock Dividends (5) (5) (14) (14) -------------- --------------- -------------- -------------- Income (Loss) Applicable to Common Shares $ (80) $ 14 $ (162) $ (27) ============== =============== ============== ============== Basic: Average Common Shares Outstanding 90.5 92.9 90.5 93.4 ============== =============== ============== ============== Diluted: Average Common Shares Outstanding 90.5 92.9 90.5 93.4 Common Stock Equivalents - Options .8 - .4 - Conversion of Series A Preferred Stock 9.6 9.6 9.6 9.6 -------------- --------------- -------------- -------------- Diluted Average Common Shares Outstanding 100.9 102.5 100.5 103.0 ============== =============== ============== ============== Basic Earnings (Loss) from Continuing Operations $ (.88) $ (.10) $(1.83) $ (.77) Earnings (Loss) from Discontinued Domestic Coal Division, Net of Taxes $ - $ .26 $ .03 $ .49 -------------- --------------- -------------- -------------- Net Loss per Common Share $ (.88) $ .16 $(1.80) $ (.28) ============== =============== ============== ============== Diluted Earnings (Loss) from Continuing Operations $ (.74) $ (.05) $(1.50) $ (.56) Earnings (Loss) from Discontinued Domestic Coal Division, Net of Taxes $ - $ .24 $ .02 $ .44 -------------- --------------- -------------- -------------- Net Loss per Common Share $ (.74) $ .19 $(1.48) $ (.12) ============== =============== ============== ============== -23-