| Robbins O-2-9316 | Cyber Enviro-Tech Inc only | Westhoff (Combined Associated) | Jackson | 6 | 551K | 963K | Mar 2009 – Nov 2024 |
| Robbins G-2-258723 | BXP Operating, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 118K | 401K | Dec 2010 – Feb 2018 |
| Robbins G-2-256490 | BXP Operating, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 77.1K | 292K | Jan 2010 – Sep 2015 |
| Robinson-Buckeye Unit G-2-242643 | Zachry Exploration, LLC only | Lonken (7030) | Jackson | 1 | 59.7K | 2.29M | Sep 2008 – Jun 2014 |
| Robbins G-2-271741 | Cyber Enviro-Tech Inc only | Westhoff (Combined Associated) | Jackson | 1 | 8.67K | 443K | Aug 2013 – Nov 2024 |
| Robinson G-2-202783 | Alta Mesa Services, LP only | Collier (Yegua Y-3) | Jackson | 1 | 7.16K | 1.08M | Mar 2004 – Dec 2011 |
| Robinson-Sooner South G-2-247334 | Zachry Exploration, LLC only | Largo Navidad (6560) | Jackson | 1 | 5.32K | 388K | Sep 2008 – Mar 2017 |
| Robinson Ranch-Rob G-2-157610 | Sue-Ann Operating, L.C. only | Haystack (6400) | Jackson | 1 | 1.17K | 346K | Dec 1995 – Jul 2007 |
| Robert-McHenry G-2-206527 | Cox & Perkins Exploration, Inc. only | Lost Bridge (Yegua 10,700) | Jackson | 1 | 598 | 158K | Nov 2004 – Feb 2006 |
| Robertson G-2-101110 | Sue-Ann Operating, L.C. only | Ganado (3700) | Jackson | 1 | 297 | 13K | Mar 1996 – Jul 1996 |
| Robinson Ranch-Rob G-2-172117 | Victoria Operating, Inc. only | McDaniel (3460) | Jackson | 1 | 9 | 350K | Feb 1998 – Apr 2002 |
| Trump Robinson Ranch-Rob G-2-170065 | Victoria Operating, Inc. only | McDaniel (4340) | Jackson | 1 | 3 | 60.2K | Jun 1998 – Aug 1999 |
| Robinson, Velma G-2-144508 | Petro-Hunt Corporation only | Morales (2200) | Jackson | 1 | 0 | 282K | by Jan 1993 – Mar 1996 |
| Robinson Ranch - Rob G-2-155603 | Allegro Investments, Inc. only | McDaniel (4100) | Jackson | 1 | 0 | 164K | Aug 1995 – Feb 2000 |
| Robinson Ranch - Rob G-2-155785 | Allegro Investments, Inc. only | McDaniel (4340) | Jackson | 1 | 0 | 223K | Sep 1995 – Feb 2000 |
| Robinson Ranch - Rob G-2-156768 | Allegro Investments, Inc. only | McDaniel (4100) | Jackson | 1 | 0 | 51.5K | Dec 1995 – Aug 1998 |
| Robinson Ranch - Rob G-2-157126 | Allegro Investments, Inc. only | McDaniel (3460) | Jackson | 1 | 0 | 311K | Jan 1996 – Nov 1999 |
| Ormand - Robinson Unit - Rob G-2-157129 | Allegro Investments, Inc. only | McDaniel (4100) | Jackson | 1 | 0 | 736K | Jan 1996 – Feb 2002 |
| Juenke - Rob G-2-157607 | Allegro Investments, Inc. only | McDaniel (2500) | Jackson | 1 | 0 | 125K | Dec 1995 – Feb 2000 |
| Robinson Ranch - Rob G-2-157849 | Allegro Investments, Inc. only | McDaniel (4100) | Jackson | 1 | 0 | 41.4K | Mar 1996 – Aug 1998 |
| Robinson Ranch-Rob G-2-157850 | Allegro Investments, Inc. only | McDaniel (3460) | Jackson | 1 | 0 | 541K | Mar 1996 – May 2002 |
| Robinson Ranch - Rob "B" G-2-158343 | Allegro Investments, Inc. only | McDaniel (3460) | Jackson | 1 | 0 | 57.1K | Apr 1996 – Dec 1997 |
| Robinson Ranch - Rob G-2-158810 | Allegro Investments, Inc. only | McDaniel (3300) | Jackson | 1 | 0 | 20.6K | Apr 1996 – Oct 1996 |
| Robinson Ranch - Rob G-2-158898 | Allegro Investments, Inc. only | McDaniel (3100) | Jackson | 1 | 0 | 85.7K | May 1996 – Sep 1997 |
| Robinson Ranch-Rob G-2-167475 | Trump Energy only | McDaniel (3460) | Jackson | 1 | 0 | 0 | — |
| Robinson Ranch - Rob G-2-168699 | Victoria Operating, Inc. only | McDaniel (3460) | Jackson | 1 | 0 | 44 | Feb 1998 – Feb 1998 |
| Robinson Ranch-Rob G-2-169305 | Victoria Operating, Inc. only | McDaniel (3300) | Jackson | 1 | 0 | 88.9K | Apr 1998 – Dec 1999 |
| Robinson, J. H. G-2-171310 | Coastal Oil & Gas Corporation only | Wildcat | Jackson | 1 | 0 | 0 | — |
| Robinson Ranch - Rob G-2-171780 | Victoria Operating, Inc. only | McDaniel (3830) | Jackson | 1 | 0 | 65.6K | Apr 1998 – Apr 2002 |
| Wearden, Robert J. G-2-174320 | Cordele Development Corporation only | Cordele, East (2700) | Jackson | 1 | 0 | 90.3K | Mar 1998 – Mar 2000 |
| Groberg, F. O/A G-2-178901 | Sue-Ann Operating, L.C. only | Stewart (3500) | Jackson | 1 | 0 | 153K | Jul 2000 – Aug 2001 |
| Wearden, Robert J. G-2-184225 | Cordele Development Corporation only | Cordele, East (2750) | Jackson | 1 | 0 | 276K | Feb 2001 – Jan 2007 |
| Robinson-Gator G-2-240713 | Zachry Exploration, LLC only | Lavaca River (Frio 4400) | Jackson | 1 | 0 | 585K | Sep 2008 – Jul 2016 |
| Robinson-Longhorn G-2-247324 | Zachry Exploration, LLC only | Lavaca River (Frio 4400) | Jackson | 1 | 0 | 783K | Feb 2009 – Feb 2015 |
| Robinson-Cardinal G-2-250567 | Zachry Exploration, LLC only | Briscoe (Catahoula 3050) | Jackson | 1 | 0 | 19K | Nov 2008 – Jun 2011 |
| Robinson-Longhorn Unit G-2-252119 | Zachry Exploration, LLC only | Wildcat | Jackson | 1 | 0 | 0 | — |
| Robinson G-2-269257 | Alta Mesa Services, LP only | Collier, North (2930) | Jackson | 1 | 0 | 8.7K | Feb 2013 – Apr 2013 |
| Robinson G-2-271037 | Innovative Energy Services, Inc. only | Collier, North (Robinson) | Jackson | 1 | 0 | 108K | Sep 2013 – Oct 2015 |
| Robinson Longhorn Unit G-2-279314 | Zachry Exploration, LLC only | Lavaca River (2100) | Jackson | 1 | 0 | 36.8K | Apr 2015 – Jun 2016 |
| Robinson Gator G-2-282342 | Zachry Exploration, LLC only | Lavaca River (4000 Frio) | Jackson | 1 | 0 | 4.98K | Oct 2016 – Nov 2016 |
| Robinson Gator G-2-283843 | Zachry Exploration, LLC only | Lavaca River (3050) | Jackson | 1 | 0 | 13.4K | Dec 2016 – May 2017 |
| Robertson, T. C. O-2-1044 | KD Energy, LLC only | Mayo | Jackson | 3 | 0 | 0 | — |
| Groberg, F. O/A O-2-1493 | Sue-Ann Operating, L.C. only | Stewart | Jackson | 3 | 0 | 0 | — |
| Groberg, F., O/a NCT-2 O-2-3260 | Sue-Ann Production Company only | Stewart | Jackson | 1 | 0 | 0 | — |
| Robertson Gas Unit G-2-32790 | Sue-Ann Operating, L.C. only | Mayo (3575) | Jackson | 1 | 0 | 0 | — |
| Robinson, Velma G-2-119642 | Atlantic & Gulf-Western Pet Corp only | Collier, East (Miocene) | Jackson | 1 | 0 | 0 | — |
| Robinson, Velma G-2-81065 | Atlantic & Gulf-Western Pet Corp only | Morales (1750) | Jackson | 1 | 0 | 0 | — |
| Robertson-Ross Unit #1 G-2-99941 | KD Energy, LLC only | Mayo | Jackson | 1 | 0 | 0 | — |
| Robbins, F.S. (Mfmu 1301) G-2-205543 | KD Energy, LLC only | La Ward, North (4700) | Jackson | 1 | 0 | 758K | Mar 2004 – Mar 2010 |
| Robinson G-2-207812 | Innovative Energy Services, Inc. only | Collier (4000) | Jackson | 1 | 0 | 36.5K | Oct 2004 – Mar 2006 |