1 Exhibit 11 THE COLUMBIA GAS SYSTEM, INC. AND SUBSIDIARIES Statements Re Computation of Per Share Earnings Year Ended December 31, 1993 1992 1991 ---- ---- ---- Computation for Statements of Consolidated - ------------------------------------------ Income ($ in millions) - ---------------------- Income (loss) before extraordinary item and cumulative effect of accounting changes . . . . . . . . . . . . 152.2 90.9 (794.8) Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . . - (39.7) - Change in accounting for income taxes . . . . . . . . . . . . . . . - - 170.0 Change in accounting for postretirement benefits . . . . . . . . . - - (69.6) - --------------------------------------------------------------------------------------------------------------- Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . 152.2 51.2 (694.4) - --------------------------------------------------------------------------------------------------------------- Earnings (loss) per share of common stock (based on average shares outstanding) ($) Before extraordinary item and accounting changes . . . . . . . . . 3.01 1.79 (15.72) Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . . - (.78) - Change in accounting for income taxes . . . . . . . . . . . . . . . - - 3.36 Change in accounting for postretirement benefits . . . . . . . . . - - (1.38) - --------------------------------------------------------------------------------------------------------------- Earnings (loss) on common stock . . . . . . . . . . . . . . . . . 3.01 1.01 (13.74) =============================================================================================================== Additional computation of average common shares outstanding (thousands) NOTE - --------------------------------------------------------------------------------------------------------------- Average shares of common stock outstanding . . . . . . . . . . . . 50,559 50,559 50,537 Incremental common shares applicable to common stock based on the common stock daily average market price: Applicable to common stock options . . . . . . . . . . . . . . . - - - Applicable to contingent stock awards . . . . . . . . . . . . . . 4 4 - - ---------------------------------------------------------------------------------------------------------------- Average common shares as adjusted . . . . . . . . . . . . . . . . . 50,563 50,563 50,537 =============================================================================================================== Average shares of common stock outstanding . . . . . . . . . . . . 50,559 50,559 50,537 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 common stock options . . . . . . . . . . . . . . . - - - Applicable to contingent stock awards . . . . . . . . . . . . . . 4 4 - - ---------------------------------------------------------------------------------------------------------------- Average common shares assuming full dilution . . . . . . . . . . . 50,563 50,563 50,537 =============================================================================================================== Earnings (loss) per share of common stock as adjusted: Before extraordinary item and accounting changes . . . . . . . . . 3.01 1.79 (15.72) Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . . - (.78) - Change in accounting for income taxes . . . . . . . . . . . . . . . - - 3.36 Change in accounting for postretirement benefits . . . . . . . . . - - (1.38) - --------------------------------------------------------------------------------------------------------------- Average common shares as adjusted ($) . . . . . . . . . . . . . . . 3.01 1.01 (13.74) =============================================================================================================== Earnings (loss) per common shares assuming full dilution: Before extraordinary item and accounting changes . . . . . . . . . 3.01 1.79 (15.72) Extraordinary item . . . . . . . . . . . . . . . . . . . . . . . . - (.78) - Change in accounting for income taxes . . . . . . . . . . . . . . . - - 3.36 Change in accounting for postretirement benefits . . . . . . . . . - - (1.38) - ---------------------------------------------------------------------------------------------------------------- Average common shares assuming full dilution ($) . . . . . . . . . 3.01 1.01 (13.74) =============================================================================================================== NOTE These caculations 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%.