Number of Producing Crude Oil Wells by County and Company
| County and Company | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 |
| Total | - | 3 | 3 | 3 | 6 | 7 | 11 | 52 | 54 | 57 | 61 | 65 | 39 | 63 | 54 | 50 | 40 | 34 | 42 |
| County: Buchanan | 0 | 1** | 1** | 1** | 1** | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Chesapeake Appalachia, LLC | - | 1** | 1** | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Columbia Natural Resources | - | - | - | 1** | 1** | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| County: Lee | 38 | 3 | 3 | 3 | 6 | 7 | 11 | 14 | 10 | 13 | 17 | 21 | 18 | 21 | 22 | 22 | 21 | 23 | 22 |
| A.E.H. Rentals LLC | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| APACO | - | - | - | - | - | 1 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 5 | 5 | 4 | 4 |
| Amvest Oil and Gas Inc. | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - |
| Ben Hur Oil and Gas Inc. | - | - | - | - | - | - | - | - | - | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 5 |
| Daugherty Petroleum, Inc. | 35 | 1, 42 | 25** | 21** | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Eastern States Oil and Gas Inc. | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Equitable Resources Co. | 3 | 1 | 2** | 2** | 2** | 1** | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Evan Energy Company, LC | - | - | - | - | 25** 1 | 25** 1 | 8** | 3 | 4 | 2 | 2 | 3 | - | - | - | - | - | - | - |
| Maverick Oil and Gas Co. | - | - | - | - | - | - | - | - | - | - | - | 3 | 4 | 6 | 9 | 9 | 5 | 5 | 5 |
| Petroleum Partners | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Pride Oil Company | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Stonewall Gas | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 4 | 4 |
| United Well Services Inc. | - | 1 | 2 | 2 | 4 | 4 | 5 | 5 | - | - | 1 | 2 | 1 | 1 | - | - | - | - | - |
| Witt Oil Drilling | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| County: Russell | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Equitable Resources Co. | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| County: Wise | 36 | 15 | 41** | 0 | 0 | 0 | 0 | 38 | 44 | 44 | 44 | 44 | 21 | 42 | 32 | 28 | 19 | 11 | 20 |
| Equitable Resources Co. | 36 | 15 | 43 | 41** | 44** | 32** | 3** | 38 | 44 | 44 | 44 | 44 | 21 | 42 | 32 | 28 | 19 | 11 | 20 |