| 1 | 3-L Drilling | Abilene, TX 79605 | Oil & Gas Operator | Nov 2024 |
| 2 | 5L Properties, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 3 | 77 Oil Properties, Inc. | Wichita Falls, TX 76307 | Gas Operator | Mar 2002 |
| 4 | A D D Productions | Sweetwater, TX 79556 | Oil & Gas Operator | Jul 2019 |
| 5 | Ada Exploration | Olney, TX 76374 | Oil & Gas Operator | Nov 2024 |
| 6 | Adair Resources Inc. | Ennis, TX 75120 | Oil & Gas Operator | Apr 2018 |
| 7 | Adexco Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
| 8 | Adkins, R. L. Corp. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2013 |
| 9 | Akers, B. F. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 10 | Albert, David Oil & Gas | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 11 | Alpha Exploration Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Oct 1998 |
| 12 | Alpha Gamma Onshore, LLC | Midland, TX 79702 | Oil Operator | Nov 2024 |
| 13 | Alpha Omega Petroleum, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 1996 |
| 14 | Amble Petroleum Co., Inc. | Tuscola, TX 79562 | Oil Operator | Nov 2024 |
| 15 | Amen Oil LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 16 | Amerac Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2013 |
| 17 | Aminex USA, Inc. | Somerset, TX 78069 | Oil & Gas Operator | May 2018 |
| 18 | Anderson, Carl T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2014 |
| 19 | Ando Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 1998 |
| 20 | Antle Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 21 | Antle, E. | Graham, TX 76450 | Oil & Gas Operator | Oct 1994 |
| 22 | Arch Petroleum Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2008 |
| 23 | Aries Operating LP | Houston, TX 77042 | Oil & Gas Operator | Nov 2024 |
| 24 | Arnot Oil Company, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 25 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 26 | Arrington,David H. Oil & Gas,Inc | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 27 | Ashtola Exploration Company,Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Nov 2024 |
| 28 | Aurora Operating, LLC | Houston, TX 77010 | Oil Operator | Nov 2024 |
| 29 | Ausanka Oil Operations | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 30 | Avad Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
| 31 | Aztel Operating Inc. | Windthorst, TX 76389 | Oil Operator | Oct 2003 |
| 32 | B P Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Nov 2007 |
| 33 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 34 | Banquet Production, LLC | Woodson, TX 76491 | Oil Operator | Nov 2024 |
| 35 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 36 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |
| 37 | Baytide Petr. Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Dec 1997 |
| 38 | Beaird, R.A. Oil Operating Co. | Merkel, TX 79536 | Oil & Gas Operator | Nov 2024 |
| 39 | Bearco Operating Co., Inc. | Olney, TX 76374 | Oil & Gas Operator | May 2019 |
| 40 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Nov 2024 |
| 41 | Beehive Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 42 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Nov 2024 |
| 43 | Bellah & Mathiews | Woodson, TX 76491 | Oil & Gas Operator | Nov 2024 |
| 44 | Bellah Oil, Inc. | Seymour, TX 76380 | Oil & Gas Operator | Dec 2012 |
| 45 | Belter Inc. | Seymour, TX 76380 | Oil Operator | Nov 2024 |
| 46 | Benco Operating, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2024 |
| 47 | Bendorf Services & Supply Co | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 48 | Bengal Petroleum USA, LLC | Austin, TX 78767 | Oil Operator | Nov 2024 |
| 49 | Bennett Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 50 | Benson Mineral Group Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 51 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 52 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 53 | Betwell Oil & Gas Company | Hialeah, FL 33002 | Oil & Gas Operator | Nov 2024 |
| 54 | Bitter Creek Petroleum Co. | Knox City, TX 79529 | Oil & Gas Operator | Nov 2024 |
| 55 | Black Star Oil Company | Plano, TX 75094 | Oil & Gas Operator | Nov 2024 |
| 56 | Bluff Creek Petroleum, LLC | Abilene, TX 79603 | Oil & Gas Operator | Nov 2024 |
| 57 | Boland Well Service | Abilene, TX 79601 | Oil & Gas Operator | Jan 2008 |
| 58 | Bomar Oil & Gas, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2021 |
| 59 | Bootstrap Exploration, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Jun 2021 |
| 60 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 61 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Nov 2024 |
| 62 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 63 | Brandt, Bodie | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2024 |
| 64 | Brazos River Exploration LLC | Houston, TX 77008 | Oil & Gas Operator | Nov 2024 |
| 65 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2024 |
| 66 | Brico Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 67 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 68 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 69 | Britton Operating, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Nov 2024 |
| 70 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 71 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2024 |
| 72 | Brown J K Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2003 |
| 73 | Bruce & Creighton | Graham, TX 76450 | Oil & Gas Operator | Apr 2000 |
| 74 | Bullitt Oil | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2016 |
| 75 | Bulwark Oil & Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 76 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2024 |
| 77 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 78 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 79 | C & B Production | Ben Bolt, TX 78342 | Oil & Gas Operator | Nov 2024 |
| 80 | C & G Transports, Inc. | Woodson, TX 76491 | Oil & Gas Operator | Nov 2024 |
| 81 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Aug 2024 |
| 82 | Caddo Creek Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 1994 |
| 83 | Campbell, T. K. | Fort Worth, TX 76118 | Oil & Gas Operator | Mar 2006 |
| 84 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 85 | Caribou Operating Co. | Granbury, TX 76048 | Oil & Gas Operator | Mar 2010 |
| 86 | Carol-Holly Oil Corporation | Denver, CO 80237 | Oil & Gas Operator | Sep 2024 |
| 87 | Carr Resources, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Nov 2024 |
| 88 | Casteel, Hoyt F. | Graham, TX 76450 | Oil & Gas Operator | Nov 2001 |
| 89 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Nov 2024 |
| 90 | Centaur Petroleum Corporation | Fort Worth, TX 76101 | Oil & Gas Operator | Nov 2024 |
| 91 | Centennial Energy Corp. | Big Lake, TX 76932 | Oil & Gas Operator | Jan 1997 |
| 92 | Central Energy Producing Company | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2003 |
| 93 | Century Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Nov 2024 |
| 94 | Cex Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 95 | Chateau Oil And Gas, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2017 |
| 96 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
| 97 | Chisholm Exploration | Abilene, TX 79604 | Oil & Gas Operator | Nov 2024 |
| 98 | Chital Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2000 |
| 99 | Circle "M" Energy Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Aug 2003 |
| 100 | Citori Oil Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2004 |