| Hill #242-125-30875 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | ActiveOil | 5,125 | Jun 18, 2003 | — | — |
| Robinson #242-125-30869 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | ActiveOil | 5,150 | May 20, 2003 | — | — |
| Robinson Unit #142-125-30868 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Stockwether) | PluggedOil | 5,300 | May 19, 2003 | — | — |
| Hill #142-125-30863 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | ActiveOil | 5,150 | Apr 18, 2003 | — | — |
| Robinson #142-125-30854 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Stockwether) | PluggedOil | 5,200 | Mar 12, 2003 | — | — |
| Thomas Unit #142-125-30826 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Stockwether) | ActiveOil | 5,104 | Nov 21, 2002 | — | — |
| Herrera Unit #142-125-30823 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | ActiveInjection | 5,101 | Oct 31, 2002 | — | — |
| Bell #3AU42-125-30792 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Stockwether) | ActiveOil | 5,052 | Sep 16, 2002 | — | — |
| Hueske #142-125-30781 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | PluggedOil | 5,200 | Jan 31, 2002 | — | — |
| Dudensing Unit #142-125-30774 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | PluggedOil | 5,200 | Dec 13, 2001 | — | — |
| Bell #2AU42-125-30763 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Stockwether) | Shut inOil | 5,110 | Sep 20, 2001 | — | — |
| Bell #1A42-125-30757 | Schalk Oil Company Inc. | Dickens, TXSoldier Mound (Tannehill) | ActiveOil | 5,110 | Aug 13, 2001 | — | — |
| Brown #142-125-30734 | Schalk Oil Company Inc. | Dickens, TXDockum Creek (Tannehill) | ActiveOil | 4,988 | Oct 20, 2000 | — | — |
| Speer Oran #12HZ42-497-34211 | Schalk Oil Company Inc. | Wise, TXAlvord South (Caddo Lime) | ActiveOil | 7,319 | Nov 5, 1997 | — | — |
| Edwards C #142-125-30645 | Schalk Oil Company Inc. | Dickens, TXIns (Lower Tannehill a ) | PluggedOil | 5,000 | May 16, 1997 | — | — |
| White G. R. Estate #242-307-31012 | Schalk Oil Company Inc. | McCulloch, TXWildcat | PluggedOil | 2,000 | Aug 20, 1996 | — | — |
| Holmes #242-125-30581 | Schalk Oil Company Inc. | Dickens, TXGirard E. (Tannehill) | PluggedOil | 4,500 | Apr 19, 1996 | — | — |
| Jones #142-125-30553 | Schalk Oil Company Inc. | Dickens, TXGirard E. (Tannehill) | ActiveInjection | 4,500 | Mar 22, 1995 | — | — |
| Speer Oran #242-497-01291 | Schalk Oil Company Inc. | Wise, TXAlvord South (Caddo Lime) | PluggedOil | 6,000 | Jul 14, 1993 | — | — |
| Speer Oran #11ST42-497-33729 | Schalk Oil Company Inc. | Wise, TXAlvord (Atoka Conglomerate) | Temporarily abandonedGas | 6,245 | May 29, 1992 | — | — |
| Speer Oran #842-497-33600 | Schalk Oil Company Inc. | Wise, TXBoonsville (Bend Congl. Gas) | Temporarily abandonedGas | 6,045 | Jan 25, 1991 | — | — |
| Malone (Caddo Conglomerate) Unit #130242-497-33339 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,000 | Sep 27, 1988 | — | — |
| Pryor (Caddo Conglomerate) Unit #70642-497-33315 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,000 | Jun 28, 1988 | — | — |
| Pryor Alice #4 L42-497-32924 | Schalk Oil Company Inc. | Wise, TXBoonsville (Bend Congl. Gas) | Shut inGas | 6,030 | Jan 25, 1988 | — | — |
| Pryor (Caddo Conglomerate) Unit #70742-497-33270 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 6,062 | Dec 9, 1987 | — | — |
| Deaver (Caddo Congl) Unit #50342-497-31502 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,050 | Jul 16, 1985 | — | — |
| Deaver H.J. #1942-497-33019 | Schalk Oil Company Inc. | Wise, TXAlvord (Atoka Conglomerate) | PluggedOil | 6,000 | May 21, 1985 | — | — |
| Deaver (Caddo Congl) Unit #502 U42-497-01035 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,000 | Mar 4, 1985 | — | — |
| Deaver H.J. #142-497-01036 | Schalk Oil Company Inc. | Wise, TXAlvord (Atoka Conglomerate) | PluggedOil | 6,000 | Mar 4, 1985 | — | — |
| Deaver H.J. #18 L42-497-31506 | Schalk Oil Company Inc. | Wise, TXAlvord (Atoka Conglomerate) | PluggedOil | 6,100 | Mar 4, 1985 | — | — |
| Pryor (Caddo Conglomerate) Unit #80242-497-32943 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,000 | Jan 15, 1985 | — | — |
| Pryor (Caddo Conglomerate) Unit #80342-497-32944 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,000 | Jan 15, 1985 | — | — |
| Pryor (Caddo Conglomerate) Unit #70542-497-32945 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,000 | Jan 15, 1985 | — | — |
| Pryor (Caddo Conglomerate) Unit #70242-497-31115 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveInjection | 6,000 | Sep 17, 1984 | — | — |
| Pryor (Caddo Conglomerate) Unit #80142-497-01934 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 5,890 | Sep 14, 1984 | — | — |
| Deaver (Caddo Congl) Unit #501242-497-32552 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,200 | Apr 28, 1983 | — | — |
| Pryor (Caddo Conglomerate) Unit #703 U42-497-32550 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 6,278 | Apr 11, 1983 | — | — |
| Deaver H.J. #12 L42-497-31509 | Schalk Oil Company Inc. | Wise, TXAlvord (Atoka Conglomerate) | ActiveInjection | 6,000 | Nov 8, 1982 | — | — |
| Deaver (Caddo Congl) Unit #608 U42-497-32431 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 5,950 | Oct 12, 1982 | — | — |
| Deaver (Caddo Congl) Unit #60742-497-32429 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,300 | Jun 24, 1982 | — | — |
| Deaver (Caddo Congl) Unit #20242-497-31450 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 6,175 | Feb 29, 1980 | — | — |
| Deaver (Caddo Congl) Unit #501042-497-31441 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 6,100 | Feb 27, 1980 | — | — |
| Deaver (Caddo Congl) Unit #50442-497-31503 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 5,950 | Nov 28, 1979 | — | — |
| Deaver (Caddo Congl) Unit #60442-497-31507 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 5,800 | Oct 4, 1979 | — | — |
| Deaver (Caddo Congl) Unit #30142-497-31519 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 5,950 | Aug 6, 1979 | — | — |
| Deaver (Caddo Congl) Unit #60342-497-31517 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | Shut inOil | 5,950 | Jun 8, 1979 | — | — |
| Deaver (Caddo Congl) Unit #50142-497-31501 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 5,950 | May 31, 1979 | — | — |
| Deaver (Caddo Congl) Unit #60142-497-31505 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | ActiveOil | 6,000 | May 31, 1979 | — | — |
| Deaver (Caddo Congl) Unit #1WS42-497-31490 | Schalk Oil Company Inc. | Wise, TXAlvord (Caddo Conglomerate) | PluggedOil | 2,500 | May 17, 1979 | — | — |
| Deaver H.J. #9 L42-497-31471 | Schalk Oil Company Inc. | Wise, TXAlvord (Atoka Conglomerate) | PluggedOil | 6,200 | May 2, 1979 | — | — |