| 1 | 3 $ Oil Company | Lubbock, TX 79413 | Oil Operator | Dec 1997 |
| 2 | 7S Oil & Gas, LLC | Midland, TX 79706 | Oil & Gas Operator | Dec 2019 |
| 3 | Adkins, R. L. Corp. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2013 |
| 4 | Alexander Resources, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 5 | Alta Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1995 |
| 6 | Altura Energy LTD. | Houston, TX 77210 | Oil & Gas Operator | Apr 2000 |
| 7 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
| 8 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 9 | Aoco Operating Company, L.L.C. | Houston, TX 77008 | Oil & Gas Operator | Feb 2005 |
| 10 | Aoco Operating, L.P. | Houston, TX 77008 | Oil & Gas Operator | Mar 2008 |
| 11 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Jul 2025 |
| 12 | Apv McCamey LLC | MC Camey, TX 79752 | Oil & Gas Operator | Jul 2025 |
| 13 | Arkland Producing Co Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2023 |
| 14 | B & B Operating Company | Odessa, TX 79760 | Oil & Gas Operator | Jul 2025 |
| 15 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 16 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 17 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 18 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2025 |
| 19 | Benson-McCown & Company | Amarillo, TX 79114 | Oil & Gas Operator | Jul 2016 |
| 20 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 21 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 22 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 23 | Broadway Operating Company Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Aug 2002 |
| 24 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 25 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 26 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 27 | Bullin, R. E. Operating Inc. | Levelland, TX 79336 | Oil & Gas Operator | Jul 2025 |
| 28 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 29 | Burtco | Lubbock, TX 79407 | Oil & Gas Operator | Jul 2025 |
| 30 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 31 | Carlow Corp. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 32 | Centaur Petroleum Corporation | Fort Worth, TX 76101 | Oil & Gas Operator | Jul 2025 |
| 33 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2025 |
| 34 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | Jul 2025 |
| 35 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 36 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Jul 2025 |
| 37 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Jul 2025 |
| 38 | Clearfork Petroleum Inc. (A) | Lubbock, TX 79408 | Oil & Gas Operator | Jul 2025 |
| 39 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 40 | Concho Resources Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2004 |
| 41 | Cone & Petree Oil & Gas Exp. Inc | Lubbock, TX 79453 | Oil & Gas Operator | May 2024 |
| 42 | Cone, S. E. Jr. | Lubbock, TX 79408 | Oil & Gas Operator | Feb 2002 |
| 43 | Conquest Oil Company | Big Spring, TX 79721 | Oil & Gas Operator | Aug 2024 |
| 44 | Cory, Kenneth W. LTD. | Bellaire, TX 77401 | Oil & Gas Operator | Jul 2025 |
| 45 | Cottonwood Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
| 46 | Cove Petroleum Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2020 |
| 47 | Cross Timbers Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 48 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2025 |
| 49 | Devon SFS Operating Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2008 |
| 50 | Double Barrel Oil LLC | Brenham, TX 77834 | Oil & Gas Operator | Jul 2025 |
| 51 | Dry Fork Production Co., LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 52 | Duncan Drilling Co. | Big Spring, TX 79721 | Oil & Gas Operator | Jul 2025 |
| 53 | Durham, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2016 |
| 54 | Eastland Exploration, Inc. | Austin, TX 78763 | Oil & Gas Operator | Apr 1997 |
| 55 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Mar 2025 |
| 56 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2024 |
| 57 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Jul 2025 |
| 58 | Flat Top Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Jul 2025 |
| 59 | Forge Energy, LLC | San Antonio, TX 78249 | Oil & Gas Operator | Apr 2019 |
| 60 | Fort Worth Production Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Oct 1996 |
| 61 | Four Sevens Operating Co., LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 62 | Future Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 1999 |
| 63 | G.P.C. Oil And Gas Corporation | Midland, TX 79710 | Oil & Gas Operator | Feb 1993 |
| 64 | Garrett, Dorothy D. | Big Spring, TX 79720 | Oil & Gas Operator | Mar 1995 |
| 65 | Geomark Resources, L.L.C. | Lubbock, TX 79453 | Oil & Gas Operator | Jul 2025 |
| 66 | Gungoll, Carl E. Exploration LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Jul 2025 |
| 67 | H & S Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2016 |
| 68 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 2025 |
| 69 | Halvey Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 70 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 71 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
| 72 | Headington Oil Company, L.P. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2008 |
| 73 | HMH Operators, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 74 | Houston Oil & Minerals Corp. | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
| 75 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 2025 |
| 76 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 77 | Jasmar Oil Co. | Levelland, TX 79336 | Oil & Gas Operator | Mar 2008 |
| 78 | Joplin Oil Co., Inc. | Lubbock, TX 79423 | Oil & Gas Operator | Jul 2025 |
| 79 | Juno Operating Company II LLC | Plano, TX 75093 | Oil & Gas Operator | Sep 2018 |
| 80 | Juno Operating Company III, LLC | Plano, TX 75093 | Oil & Gas Operator | Jul 2025 |
| 81 | Juno Operating Company, LLC | Plano, TX 75093 | Oil & Gas Operator | Jul 2011 |
| 82 | K.W.A., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 83 | Kala Oil Company | Sundown, TX 79372 | Oil & Gas Operator | Jul 2025 |
| 84 | Kastman Oil Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2012 |
| 85 | Kastman Oil Company, LLC | Lubbock, TX 79408 | Oil Operator | Jul 2025 |
| 86 | Kenworthy Operating Company | Tulsa, OK 74132 | Oil & Gas Operator | May 2009 |
| 87 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Apr 2025 |
| 88 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 89 | Knox Industries, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Jul 2025 |
| 90 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 91 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Jul 2025 |
| 92 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Jul 2025 |
| 93 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Jul 2025 |
| 94 | Losure Pet. Co. | Borger, TX 79008 | Oil & Gas Operator | Apr 2014 |
| 95 | Losure, Ken | Borger, TX 79008 | Oil & Gas Operator | Jul 2025 |
| 96 | Low-End Oil LLC | Austin, TX 78748 | Oil Operator | Jul 2025 |
| 97 | Lynx Energy Company, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 98 | M & D Oil & Gas | Levelland, TX 79336 | Oil & Gas Operator | Aug 2000 |
| 99 | Maralo, LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 100 | Masada Development Company | Lubbock, TX 79416 | Oil & Gas Operator | Nov 2021 |