| Welder "G" G-2-163126 | Wiser Oil Company, The only | Sharps Lake (3150) | Refugio | 1 | 0 | 11.1K | Apr 1997 – Dec 1997 |
| Welder 'C' G-2-234179 | Hilcorp Energy Company only | Sharps Lake, N. (5040) | Refugio | 1 | 0 | 310K | Jan 2008 – Feb 2016 |
| State of Texas 582-S Gas Unit G-3-86493 | Sharpe Energy Company only | Matagorda Island Blk. 582-S(49) | Matgrda IS-SB | 1 | 0 | 91.9K | Jan 1993 – Oct 1998 |
| State of Texas 582-S Gas Unit G-3-86494 | Sharpe Energy Company only | Matagorda Island Blk. 582-S(33) | Matgrda IS-SB | 1 | 0 | 13.5K | Jan 1993 – Oct 1998 |
| Lockwood & Sharp "A" G-3-98880 | Exxon Corp. only | Thompson (Shallow Gas) | Fort Bend | 1 | 0 | 0 | Jan 1993 – Jun 1993 |
| Lockwood & Sharp "A" G-3-120016 | Exxon Corp. only | Thompson (Miocene 13) | Fort Bend | 1 | 0 | 0 | Jan 1993 – Mar 1994 |
| Lockwood & Sharp -A- G-3-132558 | Exxon Corp. only | Thompson (3600 Sand) | Fort Bend | 1 | 0 | 3.89K | Jan 1993 – Jan 1994 |
| Lockwood & Sharp -A- G-3-136788 | P.o.&g. Operating, LLC only | Wildcat | Fort Bend | 1 | 0 | 1.34M | Jan 1993 – Jul 2026 |
| Lockwood & Sharp -B- G-3-137152 | Exxon Corp. only | Wildcat | Fort Bend | 1 | 0 | 0 | Jan 1993 – Mar 1994 |
| Miller, Ilse G-3-140027 | Hughes, Dan A. Company, L.P. only | Sharp Shooter (7760) | Wharton | 1 | 0 | 3.43M | Jan 1993 – Jun 2008 |
| Lockwood & Sharp -B- G-3-143649 | Exxon Corp. only | Thompson (Miocene 3) | Fort Bend | 1 | 0 | 6.59K | Jan 1993 – Nov 1995 |
| Lockwood & Sharp -A- G-3-144002 | P.o.&g. Operating, LLC only | Thompson (3600 Sand) | Fort Bend | 1 | 0 | 61.8K | Jan 1993 – Jul 2026 |
| Lockwood & Sharp -A- G-3-145394 | Exxon Corp. only | Thompson (3600 Sand) | Fort Bend | 1 | 0 | 66.4K | May 1993 – Oct 1996 |
| Lockwood & Sharp -A- G-3-147037 | Exxon Corp. only | Thompson | — | 1 | 0 | 75K | Oct 1993 – Dec 1996 |
| Lockwood & Sharp -A- G-3-148199 | Exxon Corp. only | Thompson (Miocene 13) | Fort Bend | 1 | 0 | 75.3K | Jan 1994 – Mar 1997 |
| Lockwood & Sharp "A" G-3-148617 | Exxon Corp. only | Thompson (Miocene 4 Seg. 6) | Fort Bend | 1 | 0 | 81.3K | Mar 1994 – Mar 1998 |
| Lockwood & Sharp -B- G-3-148917 | Exxon Corp. only | Thompson (Miocene 13) | Fort Bend | 1 | 0 | 0 | Feb 1994 – Dec 1995 |
| Lockwood & Sharp -A- G-3-149146 | P.o.&g. Operating, LLC only | Thompson (3600 Sand) | Fort Bend | 1 | 0 | 760K | Feb 1994 – Jul 2026 |
| Lockwood & Sharp "A" G-3-155555 | Exxon Corp. only | Thompson | Fort Bend | 1 | 0 | 18.7K | Aug 1995 – Jul 1996 |
| Outlar, L. B. G-3-158144 | Hughes, Dan A. Company only | Sharp Shooter (4300) | Wharton | 1 | 0 | 677K | Apr 1996 – Aug 1998 |
| Lockwood & Sharp -B- G-3-158345 | Exxon Corp. only | Thompson (3600 Sand) | Fort Bend | 1 | 0 | 606 | Mar 1996 – Oct 1997 |
| Sharp Unit G-3-159024 | Southwest Resources, Inc. only | Jerry's Quarters (A C 11900) | Washington | 1 | 0 | 1.31M | Apr 1996 – Jan 2007 |
| Lockwood & Sharp -B- G-3-161556 | Denbury Onshore, LLC only | Thompson | — | 1 | 0 | 1.18M | Oct 1996 – May 2016 |
| Lockwood & Sharp "B" G-3-161639 | Denbury Onshore, LLC only | Thompson | Fort Bend | 1 | 0 | 218K | Dec 1996 – Oct 2019 |
| Lockwood & Sharp -A- G-3-163374 | Exxon Mobil Corporation only | Thompson (Miocene 13) | Fort Bend | 1 | 0 | 13.4K | May 1997 – Sep 2002 |
| Lockwood & Sharp 'A" G-3-163377 | P.o.&g. Operating, LLC only | Thompson (Miocene 3) | Fort Bend | 1 | 0 | 114K | Jun 1997 – Jul 2026 |
| Lockwood & Sharp -B- G-3-163944 | P.o.&g. Operating, LLC only | Thompson | — | 1 | 0 | 235K | Jun 1997 – Jul 2026 |
| Lockwood & Sharp -B- G-3-163953 | P.o.&g. Operating, LLC only | Thompson | — | 1 | 0 | 511K | May 1997 – Jul 2026 |
| Lockwood & Sharp -A- G-3-166217 | Exxon Corp. only | Thompson, SW. (Miocene 13A-1) | Fort Bend | 1 | 0 | 1.82K | Sep 1997 – May 1998 |
| Lockwood & Sharp -A- G-3-169331 | P.o.&g. Operating, LLC only | Thompson (Miocene 6B Seg 7) | Fort Bend | 1 | 0 | 1.25M | Jun 1998 – Jul 2026 |
| Lockwood & Sharp -A- G-3-169780 | Denbury Onshore, LLC only | Thompson (Miocene 6 Seg 10) | Fort Bend | 1 | 0 | 369K | Jul 1998 – Nov 2018 |
| Sharpshooter G-3-191443 | Gordy Oil Company only | Hastings, East (Frio) | Brazoria | 1 | 0 | 70.3K | Jun 2002 – Jan 2004 |
| Lockwood & Sharp -A- G-3-193673 | Jetta Operating Company, Inc. only | Wildcat | Fort Bend | 1 | 0 | 0 | Sep 2002 – Sep 2003 |
| Sharpshooter G-3-199382 | Stroud Production LLC only | Hastings (M-10-C) | Brazoria | 1 | 0 | 38.6K | Jan 2004 – Mar 2006 |
| Lockwood & Sharp -A- G-3-199696 | P.o.&g. Operating, LLC only | Thompson | Fort Bend | 1 | 0 | 515K | Oct 2003 – Jul 2026 |
| Lockwood & Sharp -B- G-3-200361 | Denbury Onshore, LLC only | Thompson | — | 1 | 0 | 516K | Feb 2004 – Dec 2016 |
| Lockwood & Sharp -A- G-3-205266 | Denbury Onshore, LLC only | Thompson | Fort Bend | 1 | 0 | 96.5K | Oct 2004 – Nov 2012 |
| Lockwood & Sharp -A- G-3-207557 | P.o.&g. Operating, LLC only | Thompson | Fort Bend | 1 | 0 | 67.5K | Feb 2005 – Jul 2026 |
| Lockwood & Sharp -A- G-3-217672 | P.o.&g. Operating, LLC only | Thompson | — | 1 | 0 | 15.3K | Apr 2006 – Jul 2026 |
| Lockwood & Sharp -B- G-3-222127 | Denbury Onshore, LLC only | Thompson | Fort Bend | 1 | 0 | 9.54K | Aug 2006 – Nov 2012 |
| Lockwood & Sharp -A- G-3-263274 | Denbury Onshore, LLC only | Thompson | Fort Bend | 1 | 0 | 6.37K | Mar 2011 – Jul 2014 |
| Sharp, A. A. G-4-10290 | Prevail Energy, Incorporated only | Falfurrias (Garza) | — | 1 | 0 | 98.3K | Jan 1993 – Jul 2019 |
| Boerjan Unit - Sharp Estate G-4-14205 | Mobil Producing TX. & N.M. Inc. only | Sharp Ranch | Jim Wells | 1 | 0 | 57.6K | Jan 1993 – Jul 2001 |
| Vasquez-Sharp-Anders Gas Unit G-4-141863 | Torch Operating Company only | LA Rica (Wilcox "B") | Zapata | 1 | 0 | 227K | Jan 1993 – Jan 1998 |
| Vasquez-Sharp-Anders G.U. G-4-145006 | Torch Operating Company only | LA Rica (Wilcox "B") | Zapata | 1 | 0 | 126K | Apr 1993 – May 1996 |
| Sharp, D. Trustee-Gerdes G-4-156418 | NU-San Energy only | Ewing (1500) | San Patricio | 1 | 0 | 1.25K | Jul 1995 – Apr 2011 |
| Vasquez-Sharp-Anders G. U. G-4-157408 | Hilcorp Energy Company only | Cinco de Mayo (4700) | Zapata | 1 | 0 | 184K | Dec 1995 – Jul 2026 |
| Vasquez-Sharp-Anders Gas Unit G-4-163761 | Bellwether Exploration Company only | Cinco de Mayo (4700) | Zapata | 1 | 0 | 34.5K | Jul 1997 – Nov 1999 |
| Vasquez-Sharp-Anders Gas Unit G-4-175337 | Hilcorp Energy Company only | Zapata (Reklaw 4300) | Zapata | 1 | 0 | 8.3K | Nov 1999 – Jul 2026 |
| Sharp, Harry F. G-2-137773 | Eagle Energy Development Co only | H. Thomas (Catahoula 2800) | Jackson | 1 | 0 | 97.8K | Jan 1993 – Feb 2017 |