EXHIBIT 12.1 Hanover Compressor Company Computation of Ratio of Earnings to Fixed Charges (Amounts in thousands of dollars) Year Ended December 31, 1999 1998 1997 1996 1995 1994 Earnings: Pretax income from continuing operations..................... $63,586 $49,636 $29,417 $17,225 $9,112 $6,978 Add: Interest on indebtedness and amortization of debt expense and discount........................................ 30,876 17,889 10,728 6,594 4,560 2,027 Interest component of rent expense........................... 396 137 113 132 100 60 Equity in losses of joint ventures........................... - 137 342 - - - ------------------------------------------------------------- Earnings as adjusted....................................... 94,858 67,799 40,600 23,951 13,772 9,065 ------------------------------------------------------------- Fixed charges: Interest on indebtedness and amortization of debt expense and discount................................................ 30,876 17,889 10,728 6,594 4,560 2,027 Interest component of rent expense........................... 396 137 113 132 100 60 ------------------------------------------------------------- Fixed charges............................................... 31,272 18,026 10,841 6,726 4,660 2,087 ------------------------------------------------------------- Ratio of earnings to fixed charges........................... 3.03 3.76 3.75 3.56 2.96 4.34 ============================================================= Hanover Compressor Company Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Dividends (Amounts in thousands of dollars) Year Ended December 31, 1999 1998 1997 1996 1995 1994 Earnings: Pretax income from continuing operations..................... $63,586 $49,636 $29,417 $17,225 $9,112 $6,978 Add: Interest on indebtedness and amortization of debt expense and discount........................................ 30,876 17,889 10,728 6,594 4,560 2,027 Interest component of rent expense........................... 396 137 113 132 100 60 Equity in losses of joint ventures........................... - 137 342 - - - ------------------------------------------------------------- Earnings as adjusted....................................... 94,858 67,799 40,600 23,951 13,772 9,065 ------------------------------------------------------------- Fixed charges: Interest on indebtedness and amortization of debt expense and discount................................................ 30,876 17,889 10,728 6,594 4,560 2,027 Interest component of rent expense........................... 396 137 113 132 100 60 Preferred dividend requirements.............................. - - - 11,560 2,167 _ ------------------------------------------------------------- Fixed charges and preferred dividends....................... 31,272 18,026 10,841 18,286 6,827 2,087 ------------------------------------------------------------- Ratio of earnings to fixed charges........................... 3.03 3.76 3.75 1.31 2.02 4.34 =============================================================