Washington County Historic Gas Production (MMCF)
| Year | Total | CONV | CBM |
| TOTAL | 749.18 | 749.18 | - |
| 2008 | - | - | - |
| 2007 | - | - | - |
| 2006 | - | - | - |
| 2005 | - | - | - |
| 2004 | - | - | - |
| 2003 | - | - | - |
| 2002 | - | - | - |
| 2001 | - | - | - |
| 2000 | - | - | - |
| 1999 | - | - | - |
| 1998 | - | - | - |
| 1997 | - | - | - |
| 1996 | - | - | - |
| 1995 | - | - | - |
| 1994 | - | - | - |
| 1993 | 13.89 | 13.89 | - |
| 1992 | 20.95 | 20.95 | - |
| 1991 | 19.90 | 19.90 | - |
| 1990 | 28.93 | 28.93 | - |
| 1989 | 29.37 | 29.37 | - |
| 1988 | 40.28 | 40.28 | - |
| 1987 | 56.49 | 56.49 | - |
| 1986 | 61.81 | 61.81 | - |
| 1985 | 179.27 | 179.27 | - |
| 1984 | 102.22 | 102.22 | - |
| 1983 | 42.46 | 42.46 | - |
| 1982 | - | - | - |
| 1981 | - | - | - |
| 1980 | - | - | - |
| 1979 | - | - | - |
| 1978 | - | - | - |
| 1977 | - | - | - |
| 1976 | - | - | - |
| 1975 | - | - | - |
| 1974 | - | - | - |
| 1973 | - | - | - |
| 1972 | - | - | - |
| 1971 | - | - | - |
| 1970 | - | - | - |
| 1969 | - | - | - |
| 1968 | - | - | - |
| 1967 | - | - | - |
| 1966 | - | - | - |
| 1965 | - | - | - |
| 1964 | - | - | - |
| 1963 | - | - | - |
| 1962 | - | - | - |
| 1961 | - | - | - |
| 1960 | - | - | - |
| 1959 | - | - | - |
| 1958 | - | - | - |
| 1957 | 0.04 | 0.04 | - |
| 1956 | 6.19 | 6.19 | - |
| 1955 | 13.78 | 13.78 | - |
| 1954 | 12.97 | 12.97 | - |
| 1953 | 17.93 | 17.93 | - |
| 1952 | - | - | - |
| 1951 | - | - | - |
| 1950 | - | - | - |
| 1949 | 34.50 | 34.50 | - |
| 1948 | 36.03 | 36.03 | - |
| 1947 | 32.20 | 32.20 |