| 1 | 2 S Operating | Iowa Park, TX 76367 | Oil Operator | Sep 2018 |
| 2 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 3 | 4-J Oil Co. | Ryan, OK 73565 | Oil & Gas Operator | Mar 2009 |
| 4 | 4J Oil Co. LLC | Ryan, OK 73565 | Oil Operator | Sep 2026 |
| 5 | 5 G Resources, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 6 | A-E Operating Committee | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1996 |
| 7 | ABC NRG | Vernon, TX 76384 | Oil Operator | Sep 2026 |
| 8 | Acadia Oil Company | Wichita Falls, TX 76309 | Oil & Gas Operator | Sep 2007 |
| 9 | Acadia Oil, LLC | Wichita Falls, TX 76310 | Oil Operator | Sep 2026 |
| 10 | Access Resources Inc. | Healdton, OK 73438 | Oil & Gas Operator | Sep 2005 |
| 11 | Aegis Fluids Management, LLC | Plano, TX 75093 | Oil & Gas Operator | Sep 2026 |
| 12 | Aeon Operating, Inc. | Fate, TX 75132 | Oil & Gas Operator | Sep 2026 |
| 13 | Agave Operating Company, Inc. | Holliday, TX 76366 | Oil Operator | Sep 2026 |
| 14 | Ak Operating Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 15 | Akins Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 16 | Alpha Exploration Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Oct 1998 |
| 17 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 18 | Ampak Oil Company | Plano, TX 75074 | Oil & Gas Operator | Sep 2026 |
| 19 | Ancell Oil Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Dec 2018 |
| 20 | Anderson, Carl T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2014 |
| 21 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2026 |
| 22 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Sep 2026 |
| 23 | Arcadia Expl. & Prod. Company | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2011 |
| 24 | Armour, Widd | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 25 | Ashtola Exploration Company,Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2026 |
| 26 | Avalanche Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Sep 2026 |
| 27 | Aztec Energy, LLC | Wichita Falls, TX 76301 | Oil Operator | Sep 2026 |
| 28 | Aztec Oil & Gas Company "A" | Wichita Falls, TX 76309 | Oil & Gas Operator | Sep 2010 |
| 29 | B And G Production, Inc. | Woodward, OK 73801 | Oil & Gas Operator | Sep 2026 |
| 30 | B And M Production | Burkburnett, TX 76354 | Oil Operator | Sep 2026 |
| 31 | B.E.G. Production | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2026 |
| 32 | Baber, Bill M. | Petrolia, TX 76377 | Oil & Gas Operator | Sep 2026 |
| 33 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 34 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 35 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 36 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 37 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 38 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 39 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Sep 2026 |
| 40 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 41 | Big Mountain Operating LLC | Decatur, TX 76234 | Oil & Gas Operator | Sep 2026 |
| 42 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 43 | Birdwell, Mike Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2012 |
| 44 | Black Pearl Operating Comp., LLC | Houston, TX 77057 | Oil Operator | Sep 2026 |
| 45 | Bonfire Operating LLC | Cresson, TX 76035 | Oil & Gas Operator | Sep 2026 |
| 46 | Boyd, Dee Well Service | Vernon, TX 76385 | Oil & Gas Operator | Mar 2023 |
| 47 | Bradley, John W. Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 48 | Brahman Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 49 | Brannon Oil & Gas Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2013 |
| 50 | Brasseaux Oil Company | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2008 |
| 51 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 52 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2026 |
| 53 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 54 | Brock, Joe Wayne | N Richlnd HLS, TX 76180 | Oil & Gas Operator | Feb 2010 |
| 55 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 56 | Bucaro Energy LLC | Houston, TX 77077 | Oil Operator | Sep 2026 |
| 57 | Bud Oil, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Sep 2026 |
| 58 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 59 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 60 | Burleson Oil Company | Burkburnett, TX 76354 | Oil Operator | Sep 2026 |
| 61 | Byers, R.D. | Vernon, TX 76384 | Oil & Gas Operator | Feb 1998 |
| 62 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | May 2026 |
| 63 | Cag Petroleum Corp. | Dallas, TX 75382 | Oil & Gas Operator | Sep 2026 |
| 64 | Calhoun & Ellison Oil Co. | San Antonio, TX 78248 | Oil & Gas Operator | Dec 1997 |
| 65 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 66 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Sep 2026 |
| 67 | Centurion Oil & Gas Op. Co. Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 1998 |
| 68 | Chance Oil Co., Inc. | Vernon, TX 76385 | Oil & Gas Operator | May 2026 |
| 69 | Chanze Oil Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 70 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Sep 2026 |
| 71 | Cleary Petroleum Corporation | Edmond, OK 73083 | Oil & Gas Operator | Jul 2019 |
| 72 | Cleo Oil, Inc. | Olney, TX 76374 | Oil & Gas Operator | May 1997 |
| 73 | Cleveland Oil & Gas | Wichita Falls, TX 76308 | Oil Operator | Sep 2026 |
| 74 | CLS Petroleum Holdings LLC | Iowa Park, TX 76367 | Oil Operator | Sep 2026 |
| 75 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 76 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 77 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 78 | Collins & Ware, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 79 | Comstock Energy, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 80 | Continental Exploration LLC | Richardson, TX 75080 | Oil & Gas Operator | Sep 2026 |
| 81 | Cooper Oil & Gas, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 82 | Corda Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 83 | Core E & P Corp. | Victoria, TX 77902 | Oil & Gas Operator | Sep 2026 |
| 84 | Corpening, Joe F. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2013 |
| 85 | Covenant Operating, LLC | Wichita Falls, TX 76308 | Oil Operator | Sep 2026 |
| 86 | CP Energy, LLC | Edmond, OK 73034 | Oil Operator | Jul 2025 |
| 87 | Crampton, Freddie | Holliday, TX 76366 | Oil & Gas Operator | Sep 2026 |
| 88 | Cranford, Wayne | Electra, TX 76360 | Oil & Gas Operator | Dec 2019 |
| 89 | Crawford Energy, Incorporated | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 90 | Crutcher Oil Properties | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 91 | Cycle Oil & Gas Inc. | Katy, TX 77449 | Oil Operator | Sep 2026 |
| 92 | D. G. Oil Co. | Dennis, TX 76439 | Oil & Gas Operator | Sep 2026 |
| 93 | Dara Operating Company, LLC | Electra, TX 76360 | Oil & Gas Operator | May 2026 |
| 94 | DDD Exploration, Inc. | Amarillo, TX 79109 | Oil & Gas Operator | Sep 2026 |
| 95 | De Larios, R. V., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 96 | Decleva, Paul | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2020 |
| 97 | Den-Kay Corp. | Plano, TX 75074 | Oil Operator | Aug 2009 |
| 98 | Denali Petroleum, LLC | Arlington, TX 76006 | Oil Operator | Mar 2021 |
| 99 | Diamond Energy, Inc. | Sherman, TX 75091 | Oil & Gas Operator | Sep 2026 |
| 100 | Dimock Operating Company | Frisco, TX 75034 | Oil & Gas Operator | Sep 2026 |