1 Exhibit 11 THE COLUMBIA GAS SYSTEM, INC. AND SUBSIDIARIES Statements Re Computation of Per Share Earnings Three Months Twelve Months Ended Ended March 31, March 31, ---------------- ------------------ 1996 1995 1996 1995 ------ ------ ------ ----- Computation for Statements of Consolidated - ------------------------------------------ Income ($ in millions) - ---------------------- Income (Loss) before extraordinary item . . . . . . . . . . . . . 151.3 128.8 (409.8) 234.8 Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . - - 71.6 - - ------------------------------------------------------------------------------------------------------------------------------------ Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . 151.3 128.8 (338.2) 234.8 - ------------------------------------------------------------------------------------------------------------------------------------ Earnings (Loss) per share of common stock (based on average shares outstanding) ($) Before extraordinary item . . . . . . . . . . . . . . . . . . . . 2.99 2.55 (8.09) 4.64 Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . - - 1.41 - - ------------------------------------------------------------------------------------------------------------------------------------ Earnings (Loss) on common stock . . . . . . . . . . . . . . . . . 2.99 2.55 (6.68) 4.64 ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ Additional computation of average common shares outstanding (thousands) (NOTE) - ------------------------------------------------------------------------------------------------------------------------------------ Average shares of common stock outstanding . . . . . . . . . . . 50,662 50,563 50,603 50,561 Incremental common shares applicable to common stock based on the common stock daily average market price: Applicable to contingent stock awards . . . . . . . . . . . . . 60 - - 2 - ------------------------------------------------------------------------------------------------------------------------------------ Average common shares as adjusted . . . . . . . . . . . . . . . . 50,722 50,563 50,603 50,563 ==================================================================================================================================== Average shares of common stock outstanding . . . . . . . . . . . 50,662 50,563 50,603 50,561 Incremental common shares applicable to common stock based on the more dilutive of the common stock ending or daily average market price during the year: Applicable to contingent stock awards . . . . . . . . . . . . . 74 - - 2 - ------------------------------------------------------------------------------------------------------------------------------------ Average common shares assuming full dilution . . . . . . . . . . 50,736 50,563 50,603 50,563 Earnings (Loss) per share of common stock as adjusted: Before extraordinary item . . . . . . . . . . . . . . . . . . . . 2.98 2.55 (8.09) 4.64 Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . - - 1.41 - - ------------------------------------------------------------------------------------------------------------------------------------ Earnings (Loss) on common stock as adjusted ($) . . . . . . . . . 2.98 2.55 (6.68) 4.64 ==================================================================================================================================== Earnings (Loss) per common shares assuming full dilution: Before extraordinary item . . . . . . . . . . . . . . . . . . . . 2.98 2.55 (8.09) 4.64 Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . - - 1.41 - - ------------------------------------------------------------------------------------------------------------------------------------ Earnings (Loss) on common stock assuming full dilution ($) . . . 2.98 2.55 (6.68) 4.64 ==================================================================================================================================== NOTE These calculations are submitted in accordance with the Securities Exchange Act of 1934 Release No. 9083 although not required by footnote 2 to paragraph 14 of Accounting Principles Opinion No. 15 because they result in dilution of less than 3%.