EXHIBIT 11.1 APACHE CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (In thousands, except per share data) 	For the Quarter Ended	 For the Nine Months 	September 30,	 September 30, --------------------	 --------------------- 	1997	 1996	 1997	 1996 	-------- 	-------- 	-------	 -------- Weighted Average Calculation: - ----------------------------- Net income	 $	 30,785	 $	30,137	 $	109,408	 $	70,229 		========	 	========	 	========	 	======== Weighted average common shares outstanding	 	90,396 		89,860 		90,276	 	84,360 	 	========	 	========	 	========	 	======== Net income per share, based on weighted average common shares outstanding	 $ 	.34 	$ 	.34	 $ 	1.21	 $ 	.83 		======== 		======== 		========	 	======== Primary Calculation: - -------------------- Net income	 $ 	30,785	 $	30,137 	 $	109,408	 $	 70,229 Assumed conversion of 3.93-percent convertible notes	 	531	 	531 	 	1,568	 	1,583 		-------- 		--------		 --------	 	-------- Net income, as adjusted	 $ 	31,316	 $ 30,668 	 $	110,976	 $	 71,812 		========	 	========	 	========	 	======== Common Stock Equivalents: Weighted average common shares outstanding 90,396 		89,860		 90,276	 	84,360 Stock options, using the treasury stock method 		929		 712	 	544	 	451 Assumed conversion of 3.93-percent convertible notes	 	2,778 		2,778	 	2,778		 2,778 		--------	 	--------	 	--------	 	-------- 		94,103	 	93,350	 	93,598		 87,589 		========	 	========	 	========	 	======== Primary net income per common share 	$ 	.33*	 $ 	.33*	 $ 	1.19	 $	 .82* 		======== 		========	 	========	 	======== APACHE CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (In thousands, except per share data) EXHIBIT 11.1 (Continued) 	For the Quarter Ended	 For the Nine Months Ended 	September 30,	 September 30, ------------------	 ------------------- 	1997	 1996	 1997	 1996 	------- 	-------	 ------- 	------- Fully-Diluted Calculation: - -------------------------- Net income	 $ 	30,785	$ 	30,137	 $	109,408	$ 	70,229 Assumed conversion of: 	3.93-percent convertible notes		 531	 	531	 	1,568	 	1,583 	6-percent convertible 		subordinated debentures		 1,738	 	1,738	 	5,125 	 	-- 			------- 	--------	 	--------		-------- Net income, as adjusted	 $	33,054	 $	32,406	 $	116,101	$ 	71,812 				======== 	========		 ========		======== Common Stock Equivalents: Weighted average common 	shares outstanding		 90,396 		89,860	 	90,276	 	84,360 Stock options, using the treasury 	stock method 		 1,299 		712	 	958		 494 Assumed conversion of 3.93-percent 	convertible notes		 2,778	 	2,778	 	2,778	 	2,778 Assumed conversion of six-percent 	convertible subordinated debentures 		5,623		 5,623		 5,623	 	-- 			--------		-------- 		--------		-------- 				100,096	 	98,973	 	99,635	 	 87,632 			========= 	========		 ========		======== Fully diluted net income per 	common share 	 $ 	.33	 $ 	.33*	 $ 	1.17	 $ 	.82* 			=======	 	======== 	========		======== Note:	The assumed conversion of the six-percent convertible subordinated debentures was anti-dilutive for the nine month period ended September 30, 1996. *	The primary and fully diluted net per common share amounts for the indicated periods reflect dilution of less than three percent. As a result, the amounts reported in the consolidated statement of income are based upon weighted average shares outstanding.