| Npu ( Porter-1) G-2-4536 | Paleo Oil Company LLC only | Tulsita-Wilcox ( Luling) | Karnes | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Npu (Union-Porter-2) G-2-39458 | Legend Natural Gas II, LP only | Tulsita-Wilcox ( Luling) | Karnes | 1 | 0 | 0 | Jan 1993 – Nov 2007 |
| Npu ( Porter -3) G-2-41006 | Paleo Oil Company LLC only | Tulsita-Wilcox ( 6800 Reklaw) | — | 1 | 0 | 1.1M | Jan 1993 – Jul 2026 |
| N. P. U. Union-Porter G-2-54149 | Pennzoil Exploration & Prod. Co. only | Tulsita-Wilcox ( Slick) | Karnes | 1 | 0 | 0 | Jan 1993 – Oct 1996 |
| N. P. U. Union-Porter G-2-56734 | Pennzoil Exploration & Prod. Co. only | Tulsita-Wilcox ( Luling) | Karnes | 1 | 0 | 0 | Jan 1993 – Oct 1996 |
| Tabor Gas Unit G-2-59484 | Bay Rock Operating Company only | Porter, N. (Reklaw) | — | 1 | 0 | 471K | Jan 1993 – Jul 2026 |
| N. P. U. Porter, Guy G-2-73337 | Pennzoil Exploration & Prod. Co. only | Tulsita-Wilcox (7,900) | Karnes | 1 | 0 | 0 | Jan 1993 – May 1993 |
| Npu (Porter -4U ) G-2-73338 | Paleo Oil Company LLC only | Tulsita-Wilcox ( 7,700) | Karnes | 1 | 0 | 565K | Jan 1993 – Jul 2026 |
| Sparkman, Porter L. G-2-106006 | Wofford, C. J. only | Mineral, North (9750) | Bee | 1 | 0 | 109K | Jan 1993 – Oct 2014 |
| Willbern G-2-112738 | Premium Exploration Company only | Porter | Karnes | 1 | 0 | 715K | Jan 1993 – Jul 2026 |
| Sparkman, Porter G-2-129066 | Nog Production & Operating LLC only | Mineral, North (9750) | Bee | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Matula G-2-139892 | Hamman Oil & Refining Company only | Porter, N. (Reklaw) | Karnes | 1 | 0 | 85.5K | Jan 1993 – Oct 2000 |
| Npu (Porter-5) G-2-145440 | Paleo Oil Company LLC only | Tulsita-Wilcox (MWC) | Karnes | 1 | 0 | 6.16M | Apr 1993 – Jul 2024 |
| N.P.U. Porter, Guy G-2-145718 | Pennzoil Exploration & Prod. Co. only | Tulsita-Wilcox ( Mackhank) | Karnes | 1 | 0 | 0 | May 1993 – Aug 1993 |
| Npu (Porter -4L) G-2-146750 | Paleo Oil Company LLC only | Tulsita-Wilcox ( Luling) | Karnes | 1 | 0 | 2.62M | Aug 1993 – Jul 2026 |
| Npu ( Union-Porter -1 ) G-2-160795 | Paleo Oil Company LLC only | Tulsita-Wilcox ( 6800 Reklaw) | Karnes | 1 | 0 | 1.26M | Oct 1996 – Jul 2026 |
| Porter, W. J. G-2-203370 | Hughes, Dan A. Company only | Birdie (Wilcox Mackhank) | Karnes | 1 | 0 | 38.4K | Mar 2004 – Jan 2005 |
| Npu (Porter 6) G-2-225914 | Wagner Oil Company only | Tulsita-Wilcox (MWC) | Karnes | 1 | 0 | 1.29M | Aug 2006 – Jul 2019 |
| Birdie Porter Green G-2-250040 | Wynn-Crosby Operating, Ltd. only | Runge, E. (Hackney) | Karnes | 1 | 0 | 1.75K | Apr 2009 – Feb 2011 |
| Npu (Porter 6) G-2-287757 | Paleo Oil Company LLC only | Tulsita-Wilcox ( Massive) | Karnes | 1 | 0 | 0 | Jul 2019 – Jul 2026 |
| Npu (Porter 5) G-2-287878 | Paleo Oil Company LLC only | Tulsita-Wilcox ( 7,600 Lower) | Karnes | 1 | 0 | 0 | Aug 2019 – Jul 2024 |
| Amber-Porter (SA) Unit 2 G-2-299532 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-2) | Lavaca | 1 | 0 | 422K | Oct 2018 – Jul 2026 |
| Porter, E. G-3-108352 | Pringle Resources, Inc. only | Houston, North (7020) | Harris | 1 | 0 | 297 | Jan 1993 – Jul 2003 |
| Carriere, Louis A. et UX G-3-128601 | North Central Oil Corp. only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 145K | Jan 1993 – Feb 1995 |
| Richter-Niles G-3-130070 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 2.65M | Jan 1993 – Jul 2026 |
| Hahn, Peter H. et al Unit G-3-132219 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 6.38M | Jan 1993 – Jul 2026 |
| Halamicek, J. A. et al Unit G-3-132532 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 2.66M | Jan 1993 – Jul 2026 |
| Carriere-Henderson G-3-133688 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 4.13M | Jan 1993 – Jul 2026 |
| Bell Farm G-3-134106 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 4.57M | Jan 1993 – Jul 2026 |
| Schneider, Eddie L. et Al G-3-134366 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 1.08M | Jan 1993 – Jul 2026 |
| Carriere, Evelyn C. et Al G-3-135650 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 3.84M | Jan 1993 – Jul 2026 |
| Meek, Robert E. G-3-135998 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 1.1M | Jan 1993 – Jul 2026 |
| Carriere-Nitsch G-3-135999 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 2.14M | Jan 1993 – Jul 2026 |
| Holt, James I. et UX G-3-136099 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 4.01M | Jan 1993 – Jul 2026 |
| Choate Fee G-3-142570 | Porter, James W. only | Batson New | Hardin | 1 | 0 | 1.09K | Jan 1993 – Oct 1993 |
| Porter, L. Gas Unit G-3-142758 | Wildfire Energy Operating LLC only | Lyons (Georgetown) | Burleson | 1 | 0 | 691K | Jan 1993 – Jul 2026 |
| Yegua-Porter Unit G-3-150305 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk, Gas) | Burleson | 1 | 0 | 946K | Feb 1994 – Jun 2013 |
| Holt, James I et UX G-3-154975 | Mission Resources Corporation only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 1.36M | Jul 1995 – Aug 2001 |
| Bridges, Stone G-3-171408 | Kebo Oil & Gas, Inc. only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 294K | Oct 1998 – Mar 2003 |
| Schneider, Eddie L., et Al G-3-175841 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 1.75M | Jan 2000 – Jul 2026 |
| Holt, James I. et UX G-3-176208 | Faulconer Energy, LLC only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 530K | Dec 1999 – Jul 2026 |
| Carriere-Nitsch G-3-178273 | Mission Resources Corporation only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 92K | Jun 2000 – Apr 2004 |
| Porterhouse Unit A-255 G-3-186107 | EOG Resources, Inc. only | Mossy Grove (Glen Rose) | Madison | 1 | 0 | 2.08M | Feb 2001 – May 2022 |
| Holt, James I. et UX G-3-186625 | Faulconer, Vernon E., Inc. only | Porter's Creek (DY-5) | Wharton | 1 | 0 | 172K | Aug 2001 – Apr 2014 |
| Porter, J. B., Jr. et al Unit G-3-188191 | Square One Corporation only | Giddings (Austin Chalk, Gas) | Lee | 1 | 0 | 14K | Sep 2001 – Dec 2003 |
| Porter, Marvin G-3-195795 | Apache Corporation only | Giddings (Austin Chalk, Gas) | Burleson | 1 | 0 | 4.94K | May 2003 – Nov 2006 |
| Putnam-Lange G-3-211114 | Mueller Exploration, Inc. only | Porter's Creek (Yegua) | Wharton | 1 | 0 | 144K | May 2005 – Feb 2013 |
| Weinheimer G-3-216541 | Sandridge Onshore, LLC only | Porter's Creek, South (Wilcox) | Wharton | 1 | 0 | 529K | Oct 2005 – Jul 2010 |
| Porter, E. B. G-3-219043 | Wildfire Energy Operating LLC only | Giddings (Buda) | Burleson | 1 | 0 | 48.1K | Aug 2006 – Jul 2026 |
| Hilbrich, A. P. Jr. -A- G-2-3726 | Barnard, C. G. only | Porter, South | — | 1 | 0 | 0 | Jan 1993 – Jan 1997 |