| South Callaghan Ranch G-4-138971 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 609K | Jan 1993 – Dec 2012 |
| South Callaghan Ranch G-4-139701 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.27M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-141434 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.24M | Jan 1993 – Aug 2012 |
| South Callaghan Ranch G-4-141439 | Mobil Producing TX. & N.M. Inc. only | Beccero Creek(lobo 1) | Webb | 1 | 0 | 0 | Jan 1993 – Jan 1993 |
| South Callaghan Ranch G-4-141488 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.49M | Jan 1993 – Jun 2013 |
| South Callaghan Ranch G-4-141506 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 537K | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-141892 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.54M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-141896 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 4.43M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-142417 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.05M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-142532 | Mobil Producing TX. & N.M. Inc. only | Beccero Creek(lobo 1) | Webb | 1 | 0 | 46.6K | Jan 1993 – Apr 1994 |
| South Callaghan Ranch G-4-142539 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.47M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-142877 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 715K | Jan 1993 – Sep 2012 |
| South Callaghan Ranch G-4-143033 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.02M | Jan 1993 – Mar 2008 |
| South Callaghan Ranch G-4-143208 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 0 | Jan 1993 – Sep 2012 |
| South Callaghan Ranch G-4-143895 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 760K | Jan 1993 – Oct 2011 |
| South Callaghan Ranch G-4-143897 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.56M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-143898 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 3.64M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-143946 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 655K | Feb 1993 – Dec 2012 |
| South Callaghan Ranch G-4-143953 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 837K | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-143971 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 821K | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-144024 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.35M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-144026 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.37M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-144567 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.18M | Jan 1993 – Oct 2012 |
| South Callaghan Ranch G-4-144569 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.93M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-144570 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 5.97M | Jan 1993 – Jul 2026 |
| South Callaghan Ranch G-4-144573 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 666K | Feb 1993 – Jan 2013 |
| South Callaghan Ranch G-4-145689 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 3.44K | Jan 1993 – Jan 2012 |
| Barnes Est. G-4-145781 | Los Hijos de Sanchez J LLC only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.32M | Feb 1993 – Jul 2026 |
| Barnes Estate G-4-145782 | Michael Petroleum Corporation only | Beccero Creek(lobo 1) | Webb | 1 | 0 | 44.9K | Feb 1993 – Sep 1994 |
| Barnes Est. G-4-145784 | Chandler Oil & Gas, LLC only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.4M | Feb 1993 – Jul 2026 |
| South Callaghan Ranch G-4-146062 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.73M | May 1993 – Jul 2026 |
| G.B.G.L. & C. G-4-146822 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.44M | Sep 1993 – Jul 2026 |
| South Callaghan Ranch G-4-146868 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 892K | Sep 1993 – Jul 2026 |
| G.B.G.L. & C. G-4-146876 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.22M | Sep 1993 – Jul 2026 |
| South Callaghan Ranch G-4-147688 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.48M | Dec 1993 – Oct 2012 |
| South Callaghan Ranch G-4-147791 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 189K | Dec 1993 – Nov 2012 |
| G.B.G.L. & C. Co., Ltd. G-4-148545 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.1M | Feb 1994 – Jul 2026 |
| South Callaghan Ranch G-4-149387 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 2.44M | Mar 1994 – Aug 2012 |
| South Callaghan Ranch G-4-149684 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.3M | May 1994 – Oct 2012 |
| South Callaghan Ranch G-4-150026 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 4M | May 1994 – Jul 2026 |
| G.b.g.l.&c. Co., Ltd. G-4-150114 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 480K | Jun 1994 – May 2012 |
| South Callaghan Ranch G-4-150163 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 883K | Jun 1994 – Oct 2012 |
| South Callaghan Ranch G-4-150661 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 40.6K | Jun 1994 – Dec 2009 |
| South Callaghan Ranch G-4-150679 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 499K | Jul 1994 – Jul 2026 |
| South Callaghan Ranch G-4-150817 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.28M | Aug 1994 – Jul 2026 |
| South Callaghan Ranch G-4-150821 | Petropoint Energy Operating, LLC only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.59M | Aug 1994 – Jun 2013 |
| South Callaghan Ranch G-4-151393 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.89M | Sep 1994 – Jul 2026 |
| South Callaghan Ranch G-4-163526 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.23M | May 1997 – Jul 2026 |
| South Callaghan Ranch G-4-164335 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 104K | Aug 1997 – Jul 2026 |
| South Callaghan Ranch G-4-165731 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 0 | Aug 1997 – Jul 2026 |