| Callaghan Ranch G-4-100523 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 872 | 663K | by Jan 1993 – Jul 2002 |
| South Callaghan Ranch O-4-12731 | Mobil Producing TX. & N.M. Inc. | Dos Payasos (Lobo Stray) | Webb | 1 | 783 | 5.59K | Oct 1997 – Apr 1998 |
| Callaghan Ranch G-4-145015 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (5100) | Webb | 1 | 442 | 549K | Apr 1993 – Apr 1999 |
| Callaghan Ranch G-4-152923 | Mobil Producing TX. & N.M. Inc. | Callaghan (Wilcox) | Webb | 1 | 340 | 1.77M | Jan 1995 – Sep 1999 |
| Callaghan Ranch G-4-149428 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (5200) | Webb | 1 | 191 | 667K | Apr 1994 – Jul 1999 |
| Callaghan Ranch G-4-152834 | Mobil Producing TX. & N.M. Inc. | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 100 | 1.11M | Jan 1995 – Jun 1999 |
| Callaghan Ranch G-4-146522 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (5200) | Webb | 1 | 86 | 298K | Aug 1993 – Apr 1999 |
| McElroy, W. N. G-4-95756 | Mobil Producing TX. & N.M. Inc. | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 9 | 136K | by Jan 1993 – Jul 1999 |
| Callaghan Ranch G-4-92530 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (5100) | Webb | 1 | 0 | 20.1K | by Jan 1993 – Jun 1994 |
| McElroy, W. N. G-4-92637 | Mobil Producing TX. & N.M. Inc. | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 0 | 292K | by Jan 1993 – Jul 1997 |
| Callaghan Ranch G-4-95751 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-100524 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-115092 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-117832 | Mobil Producing TX. & N.M. Inc. | Hirsch (6900) | Webb | 1 | 0 | 305K | May 1995 – Aug 1999 |
| Callaghan Ranch G-4-124475 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-134208 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 51K | by Jan 1993 – Mar 1994 |
| South Callaghan Ranch G-4-136952 | Mobil Producing TX. & N.M. Inc. | Brettchance, West (Lobo 6) | Webb | 1 | 0 | 2.54K | by Jan 1993 – Oct 1993 |
| South Callaghan Ranch G-4-137476 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Wilcox, Lo.) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-139349 | Mobil Producing TX. & N.M. Inc. | Wildcat | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-139467 | Mobil Producing TX. & N.M. Inc. | Wildcat | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-139681 | Mobil Producing TX. & N.M. Inc. | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 0 | 9.98K | by Jan 1993 – Nov 1993 |
| Callaghan Ranch G-4-139837 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-140486 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-141435 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 123K | by Jan 1993 – Nov 1993 |
| South Callaghan Ranch G-4-141439 | Mobil Producing TX. & N.M. Inc. | Beccero Creek(lobo 1) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-141897 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 15.4K | by Jan 1993 – Jan 1993 |
| Callaghan Ranch G-4-48969 | Mobil Producing TX. & N.M. Inc. | Hirsch (6900) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-142532 | Mobil Producing TX. & N.M. Inc. | Beccero Creek(lobo 1) | Webb | 1 | 0 | 46.6K | by Jan 1993 – Apr 1994 |
| South Callaghan Ranch G-4-143215 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 147K | by Jan 1993 – Jun 1994 |
| South Callaghan Ranch G-4-143441 | Mobil Producing TX. & N.M. Inc. | Big Cowboy (Lobo 1) | Webb | 1 | 0 | 97.2K | by Jan 1993 – Jun 1994 |
| South Callaghan Ranch G-4-143972 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 110K | by Jan 1993 – Apr 1995 |
| South Callaghan Ranch G-4-144880 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 59.5K | by Jan 1993 – Mar 1995 |
| South Callaghan Ranch G-4-144932 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 110K | Mar 1993 – Aug 1993 |
| South Callaghan Ranch G-4-144947 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 40.6K | Mar 1993 – May 1993 |
| Callaghan Ranch G-4-146354 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (5200) | Webb | 1 | 0 | 261K | Jul 1993 – Aug 1998 |
| South Callaghan Ranch G-4-146489 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 317K | Jul 1993 – Dec 1993 |
| South Callaghan Ranch G-4-150024 | Mobil Producing TX. & N.M. Inc. | Big Cowboy (Lobo 1) | Webb | 1 | 0 | 263K | May 1994 – Mar 1995 |
| South Callaghan Ranch G-4-165241 | Mobil Producing TX. & N.M. Inc. | Contempo (Lobo 2) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-174786 | Mobil Producing TX. & N.M. Inc. | Hirsch (Wilcox 6250) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-141898 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-49615 | Mobil Producing TX. & N.M. Inc. | Hirsch (Wilcox 6250) | Webb | 1 | 0 | 5.76K | May 1995 – Oct 1999 |
| Callaghan Ranch G-4-49616 | Mobil Producing TX. & N.M. Inc. | Hirsch (Wilcox 6250) | Webb | 1 | 0 | 10 | May 1995 – Jun 1995 |
| Callaghan Ranch G-4-50108 | Mobil Producing TX. & N.M. Inc. | Hirsch (Wilcox 6250) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-70312 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 32.9K | by Jan 1993 – Aug 1994 |
| Callaghan Ranch G-4-70964 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5800) | Webb | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-86208 | Mobil Producing TX. & N.M. Inc. | Finley-Webb (Wilcox 5600) | Webb | 1 | 0 | 100 | by Jan 1993 – Apr 1993 |
| South Callaghan Ranch G-4-90874 | Mobil Producing TX. & N.M. Inc. | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 1.96K | by Jan 1993 – Jan 1993 |