| 1 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2026 |
| 2 | Abb Oil Co., Inc. | Wichita Falls, TX 76310 | Oil & Gas Operator | Apr 2026 |
| 3 | Acierto Resources Company, LLC | Houston, TX 77070 | Oil & Gas Operator | Apr 2026 |
| 4 | Alpha Exploration Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Oct 1998 |
| 5 | Alpine Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Jul 2018 |
| 6 | Altex Resources, Inc. | Carney, OK 74832 | Oil & Gas Operator | Mar 2015 |
| 7 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 8 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 9 | Bennett Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 10 | Berry, Gus | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 1996 |
| 11 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 12 | Blackbrush O & G, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2012 |
| 13 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Apr 2026 |
| 14 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 15 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Apr 2026 |
| 16 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 17 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2026 |
| 18 | Centurion Oil & Gas Op. Co. Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 1998 |
| 19 | Chance Oil Co., Inc. | Vernon, TX 76385 | Oil & Gas Operator | Feb 2026 |
| 20 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2025 |
| 21 | Chisholm Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Apr 2026 |
| 22 | Clear Brooke Ranches, LLC | Fort Worth, TX 76179 | Oil & Gas Operator | Apr 2026 |
| 23 | Clear Fork, Incorporated | Abilene, TX 79604 | Oil & Gas Operator | Apr 2026 |
| 24 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 25 | Comstock Energy, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2026 |
| 26 | Corvette Oil Corporation | Fort Worth, TX 76115 | Oil & Gas Operator | Mar 2008 |
| 27 | Crouch Petroleum Company | Amarillo, TX 79110 | Oil & Gas Operator | Mar 2015 |
| 28 | Decleva, Paul | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2020 |
| 29 | Delfin Operating, LLC | Dallas, TX 75243 | Oil & Gas Operator | Apr 2026 |
| 30 | DLB Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Apr 2026 |
| 31 | Dry Fork Production Co | Wichita Falls, TX 76301 | Oil Operator | Apr 2003 |
| 32 | Dry Fork Production Co., LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 33 | Eagle Exploration Co., Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2019 |
| 34 | En Geo, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Apr 2026 |
| 35 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Jan 2026 |
| 36 | Enr Operating, LLC | Eunice, NM 88231 | Oil & Gas Operator | Apr 2026 |
| 37 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 38 | Et Gathering & Processing LLC | Dallas, TX 75225 | Oil Operator | Dec 2024 |
| 39 | Evolution Resources, LLC | Houston, TX 77070 | Oil & Gas Operator | Apr 2026 |
| 40 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Jan 2026 |
| 41 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Apr 2026 |
| 42 | Falcon Production LLC | Austin, TX 78715 | Oil & Gas Operator | Apr 2026 |
| 43 | Falcon Seaboard Oil & Gas LP | Farmington, NM 87499 | Gas Operator | May 1998 |
| 44 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Apr 2026 |
| 45 | Foree Oil Company | Terrell, TX 75160 | Oil & Gas Operator | Apr 2026 |
| 46 | Fortson Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2020 |
| 47 | Ginnings Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 48 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 49 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 50 | H-M Resource Management, Inc. | Houston, TX 77055 | Oil & Gas Operator | Feb 2023 |
| 51 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 52 | Hitex Resources, LP | Houston, TX 77265 | Oil & Gas Operator | Apr 2026 |
| 53 | HMT Genesis Petroleum Corp. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2008 |
| 54 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 55 | Ipr Energy Partners, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Aug 2014 |
| 56 | J.H.R. Corporation | Bridgeville, PA 15017 | Oil & Gas Operator | Jul 2001 |
| 57 | Jla Resources Company | Austin, TX 78746 | Oil & Gas Operator | Apr 2026 |
| 58 | Johnson, William D. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2008 |
| 59 | Kadane Corporation | Dallas, TX 75205 | Oil & Gas Operator | Apr 2026 |
| 60 | Kuehne Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 61 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 62 | Lakewood Operating, LTD. | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 63 | Larance Engineering Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Jan 1996 |
| 64 | Lyric Energy, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 1996 |
| 65 | M & A Oil Company, LTD. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 66 | Masada Oil & Gas | Quanah, TX 79252 | Oil & Gas Operator | Apr 2026 |
| 67 | MB Exploration, LLC | Dallas, TX 75380 | Oil & Gas Operator | Jul 2008 |
| 68 | McMahon-Bullington Drilling Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 1996 |
| 69 | Menasco, J. | Wichita Falls, TX 76310 | Oil & Gas Operator | Dec 2019 |
| 70 | Mid-Continental Exploration,Inc. | Sanger, TX 76266 | Oil & Gas Operator | Apr 2026 |
| 71 | Mineral Development, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1996 |
| 72 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 73 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Apr 2026 |
| 74 | Mote Resources, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2004 |
| 75 | Muirfield Exploration, LTD. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2026 |
| 76 | NWG Operating LLC | Canyon, TX 79015 | Oil & Gas Operator | Apr 2026 |
| 77 | P-R-O Management, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Apr 2026 |
| 78 | Palmer Petroleum, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jun 2025 |
| 79 | Pautsky, Jimmy | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2026 |
| 80 | Perkins-Prothro Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2002 |
| 81 | Petrosource Energy Corporation | Fort Worth, TX 76112 | Oil & Gas Operator | Apr 2026 |
| 82 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 83 | Phoenix Petrocorp, Inc. | McKinney, TX 75070 | Oil & Gas Operator | Feb 2026 |
| 84 | Polk Petroleum, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 85 | Producers Operating Co Inc | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2026 |
| 86 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |
| 87 | Red-Tex Energy Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Nov 2000 |
| 88 | Red-Tex Petroleum, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Aug 2003 |
| 89 | Ridge Petroleum Inc. | Tyler, TX 75701 | Oil & Gas Operator | Apr 2026 |
| 90 | Riggins Energy Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jul 2004 |
| 91 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 92 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 2026 |
| 93 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2026 |
| 94 | Ross, Dwight M. DRLG. Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2026 |
| 95 | RRR Exploration, Inc. | Dallas, TX 75247 | Oil & Gas Operator | May 1994 |
| 96 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |
| 97 | S.B. Street Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 98 | Schalk Oil Company, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2026 |
| 99 | Schlachter, David A. | Dallas, TX 75225 | Oil & Gas Operator | Apr 2015 |
| 100 | Signal Oil Company, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |