| Conoco D Federal #00430-025-31016 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,373 | May 1, 1991 | 555 | 0 |
| Conoco D Federal #00330-025-30991 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,365 | Nov 1, 1990 | 1,192 | 0 |
| Conoco D Federal #00230-025-30947 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,348 | Aug 1, 1990 | 641 | 0 |
| Conoco D Federal #00130-025-30899 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,352 | Jun 1, 1990 | 525 | 0 |
| Conoco C Federal #00130-025-30673 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,277 | Sep 12, 1989 | 63 | 0 |
| Conoco a Federal #00330-025-30563 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,330 | May 1, 1989 | 33 | 0 |
| Conoco B Federal #00130-025-30457 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,330 | Nov 1, 1988 | 189 | 0 |
| Conoco a Federal #00230-025-30389 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,317 | Jul 1, 1988 | 171 | 0 |
| Conoco Federal #00430-025-30135 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,293 | Mar 1, 1988 | 188 | 0 |
| Conoco Federal #00330-025-29986 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,308 | Aug 1, 1987 | 248 | 0 |
| Conoco Federal #00230-025-29877 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,306 | Apr 1, 1987 | 10 | 0 |
| Conoco Federal #00130-025-29799 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,327 | Dec 1, 1986 | 138 | 0 |
| Russell Federal #01330-025-29510 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,354 | Apr 1, 1986 | 55 | 0 |
| Russell Federal #01230-025-29231 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,335 | Jul 1, 1985 | 86 | 0 |
| Russell Federal #01130-025-28909 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,364 | Nov 1, 1984 | 208 | 0 |
| Amoco Federal #00130-025-28726 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,425 | Oct 1, 1984 | 2,557 | 0 |
| Russell Federal #01030-025-28472 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,349 | Feb 1, 1984 | 238 | 0 |
| Russell Federal #00930-025-28101 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,356 | Mar 1, 1983 | 238 | 0 |
| Thompson 18 Federal #00530-025-27930 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,600 | Jan 1, 1983 | 580 | 0 |
| Thompson 19 Federal #00430-025-27938 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,476 | Dec 1, 1982 | 81 | 0 |
| Russell 17 Federal #01230-025-27716 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,502 | Apr 1, 1982 | 555 | 0 |
| Russell 17 Federal #01130-025-27717 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,500 | Mar 1, 1982 | 93 | 0 |
| Russell 17 Federal #01030-025-27375 | Sahara Operating Co | LeaMason; Delaware, East | ActiveOil | 4,500 | Nov 1, 1981 | 1,571 | 0 |
| R H Huston Jr #00430-025-26739 | Sahara Operating Co | LeaEunice Monument; Grayburg-San Andres | ActiveOil | 4,200 | May 1, 1980 | 39 | 0 |
| North el Mar Unit #06030-025-25390 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,665 | Jul 1, 1977 | 10 | 0 |
| North el Mar Unit #05930-025-25389 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,550 | Apr 1, 1977 | 21 | 0 |
| North el Mar Unit #06130-025-25382 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,780 | Feb 1, 1977 | 27 | 0 |
| Russell 3O Federal #00830-025-25349 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 5,820 | Nov 1, 1976 | 46 | 0 |
| Russell 3O Federal #00730-025-25182 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,345 | Jan 1, 1976 | 53 | 0 |
| Russell 3O Federal #00630-025-24920 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,307 | May 1, 1975 | 39 | 0 |
| Russell 3O Federal #00530-025-24829 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,312 | Oct 1, 1974 | 36 | 0 |
| Russell 3O Federal #00330-025-24708 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,274 | May 1, 1974 | 53 | 0 |
| Russell 3O Federal #00430-025-24723 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,296 | May 1, 1974 | 58 | 0 |
| Russell 3O Federal #00230-025-24623 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,350 | Jan 1, 1974 | 36 | 0 |
| Thompson 18 Federal #00430-025-24485 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,422 | Aug 1, 1973 | 330 | 0 |
| Russell 3O Federal #00130-025-08302 | Sahara Operating Co | LeaBattleaxe; Delaware | ActiveOil | 4,400 | Nov 2, 1960 | 50 | 0 |
| Thompson 18 Federal #00130-025-08259 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,403 | — | 432 | 0 |
| Thompson 18 Federal #00230-025-08260 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,418 | — | 547 | 0 |
| Russell 19 Federal #00130-025-08261 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,282 | — | 36 | 0 |
| Russell 19 Federal #00330-025-08263 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,252 | — | 28 | 0 |
| Russell 19 Federal #00430-025-08264 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,294 | — | 14 | 0 |
| Thompson 19 Federal #00330-025-08267 | Sahara Operating Co | LeaMason; Delaware, North | ActiveOil | 4,336 | — | 81 | 0 |
| North el Mar Unit #00130-025-08268 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,719 | — | 42 | 0 |
| North el Mar Unit #02330-025-08276 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,645 | — | 104 | 0 |
| North el Mar Unit #01530-025-08279 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,665 | — | 10 | 0 |
| North el Mar Unit #03630-025-08282 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,679 | — | 36 | 0 |
| North el Mar Unit #02130-025-08284 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,690 | — | 7 | 0 |
| North el Mar Unit #01330-025-08285 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,654 | — | 55 | 0 |
| North el Mar Unit #03030-025-08289 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,553 | — | 7 | 0 |
| North el Mar Unit #02530-025-08290 | Sahara Operating Co | LeaEL Mar; Delaware | ActiveOil | 4,691 | — | 1 | 0 |