| South Callaghan Ranch G-4-235032 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.55K | 371K | Dec 2007 – Apr 2012 |
| South Callaghan Ranch G-4-236423 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 595 | 72.2K | Mar 2008 – Nov 2009 |
| South Callaghan Ranch G-4-141488 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 375 | 2.49M | by Jan 1993 – May 2011 |
| South Callaghan Ranch G-4-244718 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 371 | 43.8K | Dec 2008 – May 2012 |
| South Callaghan Ranch G-4-237484 | Rosetta Resources Operating LP | Rana (Hinnant) | Webb | 1 | 344 | 43.1K | Feb 2008 – Jan 2009 |
| South Callaghan Ranch G-4-143057 | Rosetta Resources Operating LP | Dos Payasos (Lobo 2) | Webb | 1 | 336 | 271K | by Jan 1993 – Nov 2005 |
| South Callaghan Ranch G-4-226650 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 142 | 103K | Apr 2007 – May 2012 |
| South Callaghan Ranch G-4-196755 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 136 | 228K | Aug 2003 – Oct 2009 |
| South Callaghan Ranch G-4-227859 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 128 | 30.3K | Jun 2007 – Oct 2011 |
| South Callaghan Ranch G-4-226172 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 109 | 31.4K | Mar 2007 – Aug 2009 |
| South Callaghan Ranch G-4-165919 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 92 | 941K | Nov 1997 – Oct 2009 |
| South Callaghan Ranch G-4-223559 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 42 | 120K | Oct 2006 – Mar 2009 |
| South Callaghan Ranch G-4-222999 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 35 | 35.4K | Nov 2006 – Feb 2009 |
| South Callaghan Ranch G-4-149387 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 12 | 2.44M | Mar 1994 – May 2008 |
| South Callaghan Ranch G-4-229011 | Rosetta Resources Operating LP | Brettchance, W. (Middle Wilcox) | Webb | 1 | 9 | 30.9K | Jul 2007 – Dec 2008 |
| South Callaghan Ranch G-4-143946 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 8 | 655K | Feb 1993 – Sep 2008 |
| South Callaghan Ranch G-4-244993 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 6 | 706 | Nov 2008 – Nov 2008 |
| South Callaghan Ranch G-4-143117 | Rosetta Resources Operating LP | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 1 | 888K | by Jan 1993 – Dec 2007 |
| South Callaghan Ranch G-4-228839 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 1 | 49.4K | Jul 2007 – Oct 2009 |
| South Callaghan Ranch G-4-162317 | Rosetta Resources Operating LP | Small Cowboy (Lobo 6) | Webb | 1 | 1 | 103K | Mar 1997 – Dec 2010 |
| South Callaghan Ranch G-4-141891 | Rosetta Resources Operating LP | Brettchance (Lobo 2-A) | Webb | 1 | 0 | 561K | by Jan 1993 – Jun 1995 |
| South Callaghan Ranch G-4-141890 | Rosetta Resources Operating LP | Brettchance, W. (Lobo 2) | Webb | 1 | 0 | 1.06M | by Jan 1993 – Aug 2006 |
| South Callaghan Ranch G-4-138989 | Rosetta Resources Operating LP | Dix Ranch(lobo 1) | Webb | 1 | 0 | 222K | by Jan 1993 – Jul 2006 |
| South Callaghan Ranch G-4-143536 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 420K | by Jan 1993 – Oct 2001 |
| South Callaghan Ranch G-4-143208 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-141490 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-143678 | Rosetta Resources Operating LP | Small Cowboy (Lobo 6) | Webb | 1 | 0 | 606K | by Jan 1993 – Nov 1994 |
| South Callaghan Ranch G-4-143689 | Rosetta Resources Operating LP | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 0 | 399K | by Jan 1993 – May 2003 |
| South Callaghan Ranch G-4-143895 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 760K | by Jan 1993 – Nov 2006 |
| South Callaghan Ranch G-4-143129 | Rosetta Resources Operating LP | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 484K | by Jan 1993 – Sep 2006 |
| South Callaghan Ranch G-4-147791 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 189K | Dec 1993 – Jul 1995 |
| South Callaghan Ranch G-4-143121 | Rosetta Resources Operating LP | Brettchance (Lobo 6) | Webb | 1 | 0 | 535K | by Jan 1993 – Apr 2004 |
| South Callaghan Ranch G-4-138971 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 609K | by Jan 1993 – Mar 1999 |
| South Callaghan Ranch G-4-132251 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 389K | by Jan 1993 – Oct 1997 |
| South Callaghan Ranch G-4-147688 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.48M | Dec 1993 – Oct 2007 |
| South Callaghan Ranch G-4-145735 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 145K | May 1993 – Oct 1997 |
| South Callaghan Ranch G-4-141434 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.24M | by Jan 1993 – Aug 2007 |
| South Callaghan Ranch G-4-144933 | Rosetta Resources Operating LP | Callaghan (Wilcox) | Webb | 1 | 0 | 1.12M | Mar 1993 – Jun 2003 |
| South Callaghan Ranch G-4-143033 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.02M | by Jan 1993 – Sep 2006 |
| South Callaghan Ranch G-4-144615 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 742K | Mar 1993 – Apr 2006 |
| South Callaghan Ranch G-4-144574 | Rosetta Resources Operating LP | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 0 | 1.7M | Feb 1993 – Jul 2004 |
| South Callaghan Ranch G-4-145689 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 3.44K | by Jan 1993 – May 1993 |
| South Callaghan Ranch G-4-142878 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 568K | by Jan 1993 – May 2007 |
| South Callaghan Ranch G-4-146071 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 780K | Jun 1993 – Oct 1997 |
| South Callaghan Ranch G-4-140858 | Rosetta Resources Operating LP | Small Cowboy (Lobo 6) | Webb | 1 | 0 | 4.31M | by Jan 1993 – Aug 1998 |
| South Callaghan Ranch G-4-147739 | Rosetta Resources Operating LP | Dos Payasos (Wilcox 5100) | Webb | 1 | 0 | 3.55K | by Jan 1993 – Feb 1993 |
| South Callaghan Ranch G-4-137330 | Rosetta Resources Operating LP | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 0 | 144K | by Jan 1993 – Mar 2003 |
| South Callaghan Ranch G-4-148490 | Rosetta Resources Operating LP | Callaghan, N. (Lobo Stray) | Webb | 1 | 0 | 40.5K | Nov 1993 – Jun 2003 |
| South Callaghan Ranch G-4-144573 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 666K | Feb 1993 – Apr 1995 |
| South Callaghan Ranch G-4-144567 | Rosetta Resources Operating LP | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.18M | by Jan 1993 – Apr 2001 |