1 EXHIBIT 12.1 DEVON ENERGY CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES THREE MONTHS YEAR ENDED DECEMBER 31, ENDED ------------------------------------------------------------------------ MARCH 31, 1991 1992 1993 1994 1995 1996 ------------ ----------- ----------- ----------- ----------- ----------- Earnings (loss) before income taxes and cumulative effect of change in accounting principle per consolidated statements of operations......................... $(21,144,443) 19,485,817 25,960,772 21,356,711 25,621,899 9,743,926 Add: Interest expense................... 2,208,782 2,644,063 3,421,742 5,438,911 7,051,142 2,481,156 Estimated interest factor of operating lease payments......... 177,165 153,384 162,518 173,923 182,129 52,634 ------------ ----------- ----------- ----------- ----------- ----------- Earnings (loss), as adjusted(A)...... $(18,758,496) 22,283,264 29,545,032 26,969,545 32,855,170 12,277,716 ============ =========== =========== =========== =========== =========== Fixed charges: Interest costs incurred............ 2,208,782 2,644,063 3,421,742 5,438,911 7,051,142 2,461,156 Estimated interest factor of operating lease payments......... 177,165 153,384 162,518 173,923 182,129 52,634 ------------ ----------- ----------- ----------- ----------- ----------- Total fixed charges(B)............... $ 2,385,947 2,797,447 3,584,260 5,612,834 7,233,271 2,533,790 ============ =========== =========== =========== =========== =========== Radio of earnings to fixed charges(A)/(B)..................... -- 7.97 8.24 4.80 4.54 4.85 ============ =========== =========== =========== =========== =========== Amount of fixed charges in excess of earnings(B-A)...................... $ 21,144,443 -- -- -- -- -- ============ =========== =========== =========== =========== =========== COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AS ADJUSTED FOR THE CONVERTIBLE PREFERRED SECURITIES OFFERING THREE MONTHS YEAR ENDED ENDED DECEMBER 31, MARCH 31, 1995 1996 ------------ ------------ Earnings as adjusted (as calculated above)(1)..................... $32,855,170 12,277,716 =========== =========== Fixed charges (as shown above).................................... 7,233,271 2,533,790 Reduction of interest expense as a result of use of funds received from Convertible Preferred Securities issued to retire long-term debt............................................................ (6,475,748) (2,306,459) Distribution requirements on the Convertible Preferred Securities...................................................... 9,717,500 2,429,375 Amortization of costs incurred in connection with the Convertible Preferred Securities offering................................... 166,167 41,542 ----------- ----------- Fixed charges adjusted for the Convertible Preferred Securities offering........................................................ $10,641,190 2,698,248 =========== =========== Ratio of earnings to fixed charges adjusted for the Convertible Preferred Securities offering................................... 3.09 4.55 =========== =========== - --------------- (1) Earnings for the year 1995 do not include assumed interest earnings on the excess of funds received from the issuance of the Convertible Preferred Securities above the average long-term debt outstanding during the year. Such excess was approximately $47.4 million.