EXHIBIT 11 CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES STATEMENT OF NET INCOME PER SHARE --------------------------------- ($ in thousands, except per share) (Unaudited) Three Months Ended September 30, ---------------------- 1996 1995 ------ ------ PRIMARY INCOME PER SHARE Computation for statement of income Net income per statement of income $ 8,204 $ 2,915 ======== ======== Common shares outstanding 30,126 26,404 Adjustment to weighted average common shares outstanding: Add dilutive effect of: Employee Options 2,003 2,122 -------- -------- Weighted average common shares and common equivalent shares outstanding, as adjusted 32,129 28,526 ======== ======== Net income per common share, as adjusted $ .26 $ .10 ======== ======== FULLY DILUTED INCOME PER SHARE Net income applicable to common stock as shown in primary computation above $ 8,204 $ 2,915 ======== ======== Common shares outstanding 30,126 26,404 Adjustment to weighted average common shares outstanding: Add fully dilutive effect of: Employee Options 2,043 2,368 -------- -------- Weighted average common shares and common equivalent shares outstanding, as adjusted 32,169 28,772 ======== ======== Fully diluted net income per common share $ .26 $ .10 ======== ========