(Oil & Gas Journal 6/21/99)
Gary S. Swindell, Dallas, Texas
Year of First Production | New Gas Completions | Wells still Active 2-99 | Maximum Production Rate - MCF/month | First year Decline Rate - % | Overall 5 year Decline Rate - % | Projected Ultimate Recovery - MMCF/Well | 10 Yr Survival Rate % | Annual Prod - Gas Wells BCF | Annual Prod - All Wells BCF | From brand new wells | Annual Gas fm Existing | % of total fm new wells | New Oil & Gas Compl |
1971 | 1934 | 204 | 52,324 | 10 | 10 | 6,245 | 31% | 7,267,069 | 9,414,963 | 506,095 | 8,908,868 | 7.0% | 7737 |
1973 | 2657 | 543 | 38,675 | 22 | 19 | 3,671 | 38% | 7,200,071 | 9,196,535 | 522,471 | 8,674,064 | 7.3% | 8656 |
1976 | 4289 | 901 | 23,329 | 19 | 15 | 2,567 | 35% | 6,217,431 | 7,675,088 | 523,081 | 7,152,007 | 8.4% | 12982 |
1978 | 5217 | 1310 | 18,871 | 14 | 16 | 2,463 | 39% | 5,643,849 | 7,029,862 | 486,306 | 6,543,556 | 8.6% | 15863 |
1980 | 5310 | 1462 | 18,213 | 24 | 19 | 1,697 | 41% | 5,686,583 | 7,009,876 | 498,837 | 6,511,039 | 8.8% | 20038 |
1981 | 5687 | 1667 | 17,772 | 31 | 16 | 1,842 | 40% | 5,379,173 | 6,736,439 | 493,663 | 6,242,776 | 9.2% | 26442 |
1982 | 6034 | 1870 | 15,589 | 30 | 14 | 1,713 | 41% | 4,719,622 | 6,107,572 | 466,705 | 5,640,867 | 9.9% | 25439 |
1983 | 4828 | 1285 | 15,601 | 12 | 10 | 1,967 | 36% | 4,234,354 | 5,649,601 | 368,275 | 5,281,326 | 8.7% | 24089 |
1984 | 5627 | 1650 | 16,652 | 24 | 14 | 1,727 | 37% | 4,387,003 | 5,875,646 | 432,612 | 5,443,034 | 9.9% | 27696 |
1985 | 4944 | 1505 | 21,082 | 26 | 18 | 1,717 | 38% | 4,326,918 | 5,821,436 | 490,977 | 5,330,459 | 11.3% | 24921 |
1986 | 3024 | 962 | 19,180 | 24 | 16 | 1,686 | 40% | 4,234,396 | 5,677,514 | 320,729 | 5,356,785 | 7.6% | 13253 |
1987 | 3050 | 990 | 21,423 | 34 | 19 | 1,463 | 38% | 4,165,905 | 5,544,145 | 315,946 | 5,228,199 | 7.6% | 11259 |
1988 | 3321 | 1179 | 21,192 | 26 | 19 | 1,630 | 39% | 4,342,480 | 5,714,180 | 357,036 | 5,357,144 | 8.2% | 9978 |
1989 | 3389 | 1369 | 26,416 | 22 | 13 | 2,309 | 42% | 4,282,988 | 5,605,992 | 370,229 | 5,235,763 | 8.6% | 8503 |
1990 | 3398 | 1563 | 22,123 | 26 | 23 | 1,568 | 4,257,407 | 5,553,177 | 388,018 | 5,165,159 | 9.1% | 9014 | |
1991 | 3000 | 1514 | 24,917 | 32 | 24 | 1,330 | 4,226,860 | 5,536,911 | 370,936 | 5,165,975 | 8.8% | 9053 | |
1992 | 3181 | 1795 | 27,820 | 41 | 25 | 1,355 | 4,146,527 | 5,467,163 | 371,919 | 5,095,244 | 9.0% | 7596 | |
1993 | 3877 | 2305 | 31,127 | 44 | 26 | 1,305 | 4,335,720 | 5,645,452 | 577,094 | 5,068,358 | 13.3% | 8460 | |
1994 | 4446 | 2792 | 29,882 | 42 | 28 | 1,269 | 4,492,443 | 5,711,491 | 651,222 | 5,060,269 | 14.5% | 8055 | |
1995 | 3912 | 2663 | 32,988 | 45 | 1,099 | 4,569,900 | 5,713,022 | 603,289 | 5,109,733 | 13.2% | 8195 | ||
1996 | 4279 | 3131 | 39,478 | 53 | 1,092 | 4,770,283 | 5,868,663 | 732,617 | 5,136,046 | 15.4% | 8729 | ||
1997 | 4700 | 3734 | 35,241 | 54 | 992 | 4,819,101 | 5,864,147 | 723,512 | 5,140,635 | 15.0% | 9874 | ||
1998 | 4314 | 3991 | 41,628 | 56 | 1,019 | 4,850,383 | 5,773,345 | 817,939 | 4,955,406 | 16.9% |
Last Updated on 11/10/99
By Gary S. Swindell