Tazewell County Historic Gas Production (MMCF)
| Year | Total | CONV | CBM |
| TOTAL | 71,592.48 | 36,884.41 | 34,708.08 |
| 2008 | 9,401.29 | 752.22 | 8,649.08 |
| 2007 | 7,536.38 | 840.59 | 6,695.79 |
| 2006 | 5,986.47 | 609.92 | 5,376.55 |
| 2005 | 3,886.34 | 331.31 | 3,555.02 |
| 2004 | 3,153.32 | 380.84 | 2,772.48 |
| 2003 | 2,485.30 | 446.41 | 2,038.89 |
| 2002 | 2,563.88 | 505.78 | 2,058.11 |
| 2001 | 1,846.16 | 576.54 | 1,269.62 |
| 2000 | 1,912.57 | 621.46 | 1,291.11 |
| 1999 | 1,604.51 | 675.94 | 928.57 |
| 1998 | 709.71 | 636.85 | 72.86 |
| 1997 | 732.11 | 732.11 | - |
| 1996 | 419.75 | 419.75 | - |
| 1995 | 319.69 | 319.69 | - |
| 1994 | 410.90 | 410.90 | - |
| 1993 | 421.28 | 421.28 | - |
| 1992 | 331.19 | 331.19 | - |
| 1991 | 357.80 | 357.80 | - |
| 1990 | 487.60 | 487.60 | - |
| 1989 | 523.27 | 523.27 | - |
| 1988 | 499.55 | 499.55 | - |
| 1987 | 679.95 | 679.95 | - |
| 1986 | 679.28 | 679.28 | - |
| 1985 | 659.34 | 659.34 | - |
| 1984 | 664.18 | 664.18 | - |
| 1983 | 291.77 | 291.77 | - |
| 1982 | 311.45 | 311.45 | - |
| 1981 | 526.61 | 526.61 | - |
| 1980 | 501.72 | 501.72 | - |
| 1979 | 605.08 | 605.08 | - |
| 1978 | 639.70 | 639.70 | - |
| 1977 | 692.99 | 692.99 | - |
| 1976 | 908.21 | 908.21 | - |
| 1975 | 1,027.92 | 1,027.92 | - |
| 1974 | 1,076.17 | 1,076.17 | - |
| 1973 | 1,251.88 | 1,251.88 | - |
| 1972 | 1,305.09 | 1,305.09 | - |
| 1971 | 1,510.94 | 1,510.94 | - |
| 1970 | 1,636.72 | 1,636.72 | - |
| 1969 | 1,602.68 | 1,602.68 | - |
| 1968 | 1,963.22 | 1,963.22 | - |
| 1967 | 2,281.83 | 2,281.83 | - |
| 1966 | 2,731.65 | 2,731.65 | - |
| 1965 | 2,442.91 | 2,442.91 | - |
| 1964 | 12.12 | 12.12 | - |
| 1963 | - | - | - |
| 1962 | - | - | - |
| 1961 | - | - | - |
| 1960 | - | - | - |
| 1959 | - | - | - |
| 1958 | - | - | - |
| 1957 | - | - | - |
| 1956 | - | - | - |
| 1955 | - | - | - |
| 1954 | - | - | - |
| 1953 | - | - | - |
| 1952 | - | - | - |
| 1951 | - | - | - |
| 1950 | - | - | - |
| 1949 | - | - | - |
| 1948 | - | - | - |
| 1947 | - | - | - |