| Rattlesnake #16030-045-08728 | Harken Southwest Corp. only | San JuanRattlesnake Dakota | PluggedOil | 902 | Nov 1, 1978 | 0 | 0 |
| Pre-Ongard Well #11930-045-08258 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Feb 28, 1977 | 0 | 0 |
| Pre-Ongard Well #21330-045-21252 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 9, 1973 | 0 | 0 |
| Rattlesnake #21030-045-21231 | Harken Southwest Corp. only | San JuanRattlesnake Dakota | PluggedOil | 848 | Feb 16, 1973 | 0 | 0 |
| Pre-Ongard Well #21930-045-21235 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Feb 16, 1973 | 0 | 0 |
| Pre-Ongard Well #22030-045-21236 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Feb 16, 1973 | 0 | 0 |
| Pre-Ongard Well #20130-045-21066 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 18, 1972 | 0 | 0 |
| Rattlesnake #20230-045-21067 | Harken Southwest Corp. only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 18, 1972 | 0 | 0 |
| Rattlesnake #20330-045-21068 | Harken Southwest Corp. only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 18, 1972 | 0 | 0 |
| Pre-Ongard Well #20430-045-21069 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 18, 1972 | 0 | 0 |
| Rattlesnake #20530-045-21070 | Harken Southwest Corp. only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 18, 1972 | 0 | 0 |
| Rattlesnake #20730-045-21072 | Harken Southwest Corp. only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 18, 1972 | 0 | 0 |
| Navajo #20830-045-21073 | Tasco only | San JuanRattlesnake Dakota | PluggedOil | 850 | Sep 18, 1972 | 0 | 0 |
| Pre-Ongard Well #06430-045-20639 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | May 15, 1970 | 0 | 0 |
| Pre-Ongard Well #06730-045-20642 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | May 15, 1970 | 0 | 0 |
| Pre-Ongard Well #07030-045-20645 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | May 15, 1970 | 0 | 0 |
| Pre-Ongard Well #07130-045-20646 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | May 15, 1970 | 0 | 0 |
| Pre-Ongard Well #07230-045-20647 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | May 15, 1970 | 0 | 0 |
| Pre-Ongard Well #05330-045-20600 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #05430-045-20601 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #05530-045-20602 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #05630-045-20603 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #05730-045-20604 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #05830-045-20605 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #05930-045-20606 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jan 27, 1970 | 0 | 0 |
| Pre-Ongard Well #04830-045-20590 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Nov 25, 1969 | 0 | 0 |
| Pre-Ongard Well #04930-045-20591 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Nov 25, 1969 | 0 | 0 |
| Pre-Ongard Well #05030-045-20592 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Nov 25, 1969 | 0 | 0 |
| Pre-Ongard Well #02930-045-20586 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Nov 20, 1969 | 0 | 0 |
| Pre-Ongard Well #01030-045-20562 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Oct 3, 1969 | 0 | 0 |
| Pre-Ongard Well #03130-045-20519 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jun 23, 1969 | 0 | 0 |
| Pre-Ongard Well #04430-045-20520 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jun 23, 1969 | 0 | 0 |
| Pre-Ongard Well #04630-045-20522 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jun 23, 1969 | 0 | 0 |
| Pre-Ongard Well #04730-045-20523 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jun 23, 1969 | 0 | 0 |
| Pre-Ongard Well #02630-045-20434 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 17, 1969 | 0 | 0 |
| Pre-Ongard Well #05130-045-20369 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Nov 20, 1968 | 0 | 0 |
| Pre-Ongard Well #05230-045-20370 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Nov 20, 1968 | 0 | 0 |
| Pre-Ongard Well #04330-045-20352 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Sep 25, 1968 | 0 | 0 |
| Pre-Ongard Well #01130-045-20234 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 18, 1968 | 0 | 0 |
| Pre-Ongard Well #01330-045-20236 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 18, 1968 | 0 | 0 |
| Pre-Ongard Well #01430-045-20237 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 18, 1968 | 0 | 0 |
| Pre-Ongard Well #01930-045-20242 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 18, 1968 | 0 | 0 |
| Pre-Ongard Well #02030-045-20243 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 18, 1968 | 0 | 0 |
| Pre-Ongard Well #02230-045-20245 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Mar 18, 1968 | 0 | 0 |
| Pre-Ongard Well #00930-045-20202 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Dec 6, 1967 | 0 | 0 |
| Pre-Ongard Well #00530-045-20096 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jul 5, 1967 | 0 | 0 |
| Pre-Ongard Well #31030-045-20097 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jul 5, 1967 | 0 | 0 |
| Pre-Ongard Well #00830-045-20098 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Jul 5, 1967 | 0 | 0 |
| Pre-Ongard Well #00130-045-20014 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Feb 6, 1967 | 0 | 0 |
| Pre-Ongard Well #00230-045-20015 | Pre-Ongard Well Operator only | San JuanRattlesnake Dakota | PluggedOil | — | Feb 6, 1967 | 0 | 0 |