| Bailey #109242-483-32244 | Rio Petroleum Inc. | Wheeler, TXThorndike (Hunton) | ActiveGas | 13,670 | Jul 23, 2019 | — | — |
| Bryan #442-421-31222 | Rio Petroleum Inc. | Sherman, TXTexas Hugoton | ActiveGas | 3,328 | Nov 5, 2014 | — | — |
| Lohberger #142-483-32050 | Rio Petroleum Inc. | Wheeler, TXThorndike (Kinderhook) | PluggedGas | 14,500 | Mar 30, 2011 | — | — |
| Texhoma #142-421-31085 | Rio Petroleum Inc. | Sherman, TXTexhoma (Morrow Upper) | PluggedGas | 6,900 | Feb 2, 2008 | — | — |
| Bailey E #142-483-31006 | Rio Petroleum Inc. | Wheeler, TXThorndike (Kinderhook) | PluggedGas | 12,400 | Mar 13, 2007 | — | — |
| Loveless-Langford #3HTHZ42-197-30865 | Rio Petroleum Inc. | Hardeman, TXDown Under (Chappel) | PluggedOil | 9,000 | May 12, 2006 | — | — |
| Bryan #342-421-30459 | Rio Petroleum Inc. | Sherman, TXTexas Hugoton | ActiveGas | 5,233 | Sep 27, 2002 | — | — |
| Lohberger #142-483-31589 | Rio Petroleum Inc. | Wheeler, TXThorndike (Missouri Lower) | PluggedOil | 8,700 | Jun 27, 2001 | — | — |
| Ms. Bettye #113642-197-31172 | Rio Petroleum Inc. | Hardeman, TXRio (Chappel) | PluggedOil | 8,800 | Oct 4, 2000 | — | — |
| Dude Wilson #142-357-32261 | Rio Petroleum Inc. | Ochiltree, TXPerryton (Douglas) | PluggedGas | 11,500 | Apr 29, 1999 | — | — |
| Kenneth L. Powell Estate Unit #142-205-30292 | Rio Petroleum Inc. | Hartley, TXLathem (Canyon Granite Wash) | PluggedOil | 6,650 | Dec 3, 1998 | — | — |
| Wright #142-487-32354 | Rio Petroleum Inc. | Wilbarger, TXPiarist SW (Miss) | PluggedOil | 8,600 | Jun 23, 1997 | — | — |
| Ms. Bettye #313642-197-31373 | Rio Petroleum Inc. | Hardeman, TXRio (Chappel) | ActiveOil | 8,179 | Mar 8, 1996 | — | — |
| Ardrey #242-295-30800 | Rio Petroleum Inc. | Lipscomb, TXFollett (Tonkawa) | PluggedOil | 9,000 | Jan 30, 1996 | — | — |
| Sheridan #242-065-31125 | Rio Petroleum Inc. | Carson, TXPanhandle Carson County Field | PluggedOil | 3,309 | Jan 26, 1995 | — | — |
| Westlands - IP #102542-165-34773 | Rio Petroleum Inc. | Gaines, TXFelmac (Yates) | PluggedGas | 5,500 | Aug 24, 1994 | — | — |
| Charles #242-483-31050 | Rio Petroleum Inc. | Wheeler, TXPanhandle East | ActiveGas | 2,560 | Aug 23, 1993 | — | — |
| Mansfield B #142-359-30283 | Rio Petroleum Inc. | Oldham, TXAlamosa East (Granite Wash) | PluggedOil | 7,650 | Aug 24, 1992 | — | — |
| Palaura-LPC Unit #142-197-31217 | Rio Petroleum Inc. | Hardeman, TXBerry West (Miss) | PluggedOil | 8,700 | Jul 8, 1992 | — | — |
| Loveless-Langford #142-197-31208 | Rio Petroleum Inc. | Hardeman, TXDown Under (Chappel) | PluggedOil | 8,700 | Apr 8, 1992 | — | — |
| Johnson -B- #142-233-31805 | Rio Petroleum Inc. | Hutchinson, TXPanhandle West | PluggedGas | 3,400 | Mar 17, 1992 | — | — |
| Morse J. S. -C- #242-179-82317 | Rio Petroleum Inc. | Gray, TXPanhandle Gray County Field | ActiveOil | 2,795 | Jan 14, 1991 | — | — |
| Morse J. S. -C- #342-179-04055 | Rio Petroleum Inc. | Gray, TXPanhandle Gray County Field | ActiveOil | 2,988 | Sep 28, 1990 | — | — |
| Morse J. S. -D- #542-179-82323 | Rio Petroleum Inc. | Gray, TXPanhandle Gray County Field | ActiveOil | 2,829 | Apr 23, 1990 | — | — |
| Thompson-Sawyer Library #142-197-31114 | Rio Petroleum Inc. | Hardeman, TXBligh (Chappel) | PluggedOil | 8,700 | Jan 12, 1990 | — | — |
| Bryan #242-421-30444 | Rio Petroleum Inc. | Sherman, TXTexas Hugoton | ActiveGas | 3,526 | Mar 30, 1989 | — | — |
| Morse J. S. -D- #442-179-07455 | Rio Petroleum Inc. | Gray, TXPanhandle Gray County Field | ActiveOil | 2,894 | Jan 20, 1988 | — | — |
| Powell Kenneth L. Estate F #142-205-30187 | Rio Petroleum Inc. | Hartley, TXLathem (Canyon Granite Wash) | PluggedOil | 6,500 | Jul 17, 1987 | — | — |
| Englebrecht #2 R42-421-30388 | Rio Petroleum Inc. | Sherman, TXTexas Hugoton | PluggedGas | 3,200 | May 11, 1987 | — | — |
| Morse J. S. -D- #342-179-82321 | Rio Petroleum Inc. | Gray, TXPanhandle Gray County Field | ActiveOil | 2,867 | Mar 25, 1986 | — | — |
| Morse J. S. -J- #142-179-82305 | Rio Petroleum Inc. | Gray, TXPanhandle Gray County Field | PluggedOil | 3,100 | Mar 24, 1986 | — | — |
| Lathem Family Unit B #142-205-30166 | Rio Petroleum Inc. | Hartley, TXLathem (Canyon Granite Wash) | PluggedOil | 6,700 | Oct 3, 1985 | — | — |
| Latham Family Unit #142-205-30158 | Rio Petroleum Inc. | Hartley, TXLathem (Canyon Granite Wash) | PluggedOil | 6,700 | Jun 28, 1985 | — | — |
| Forsman #142-483-30465 | Rio Petroleum Inc. | Wheeler, TXThorndike (Atoka) | PluggedGas | 12,500 | May 15, 1985 | — | — |
| Wright #142-357-31630 | Rio Petroleum Inc. | Ochiltree, TXPerryton (Elgin) | PluggedGas | 7,100 | Nov 1, 1984 | — | — |
| Mary #142-195-30882 | Rio Petroleum Inc. | Hansford, TXShapley (Morrow) | PluggedOil | 7,250 | Jan 25, 1983 | — | — |
| Seitz #106642-483-31067 | Rio Petroleum Inc. | Wheeler, TXHopkins (Morrow) | PluggedGas | 13,500 | Jul 14, 1982 | — | — |
| Charles #142-483-31049 | Rio Petroleum Inc. | Wheeler, TXPanhandle East | ActiveGas | 2,540 | May 20, 1982 | — | — |
| Reed #1 A42-205-30120 | Rio Petroleum Inc. | Hartley, TXPanhandle West | PluggedGas | 3,700 | Jan 21, 1981 | — | — |
| Nancy #142-065-30869 | Rio Petroleum Inc. | Carson, TXBobbitt (Brown Dolo.) | PluggedGas | 3,500 | Dec 11, 1980 | — | — |
| Johnson Henry #142-483-30713 | Rio Petroleum Inc. | Wheeler, TXThorndike (Atoka) | PluggedGas | 12,500 | Nov 21, 1980 | — | — |
| Sheridan #142-065-30768 | Rio Petroleum Inc. | Carson, TXPanhandle West | PluggedGas | 3,000 | Feb 1, 1980 | — | — |
| Edward Abraham Memorial Home Uni #142-211-31144 | Rio Petroleum Inc. | Hemphill, TXCanadian SE (Douglas) | PluggedGas | 7,500 | Aug 9, 1979 | — | — |
| Taylor Jay a #142-359-30028 | Rio Petroleum Inc. | Oldham, TXLambert (Granite Wash Up.) | PluggedOil | 7,500 | Jan 2, 1979 | — | — |