EXHIBIT 12 DENBURY RESOURCES INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Year Ended December 31, --------------------------- 1997 1996 1995 ------- ------- ------- Earnings: Pretax income from continuing operations $23,798 $14,056 $ 1,081 Fixed charges 1,262 4,080 2,161 ------- ------- ------- Earnings $25,060 $18,136 $ 3,242 ======= ======= ======= Fixed Charges: Interest expense $ 1,111 $ 1,993 $ 2,085 Interest component of rent expense 151 116 76 Imputed preferred dividend -- 1,281 -- Preferred dividend tax effect -- 690 -- ------- ------- ------- Fixed charges $ 1,262 $ 4,080 $ 2,161 ======= ======= ======= Ratio of earnings to fixed charges 19.9 4.4 1.5 ======= ======= ======= 1