| 1 | 3-M Energy Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2017 |
| 2 | 7S Oil & Gas, LLC | Midland, TX 79706 | Oil & Gas Operator | Dec 2019 |
| 3 | A A Production Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 1998 |
| 4 | Abel Production Company | San Angelo, TX 76904 | Oil & Gas Operator | Sep 2000 |
| 5 | Acock Operating Limited | San Antonio, TX 78270 | Oil & Gas Operator | Apr 2024 |
| 6 | Aeon Operating, Inc. | Fate, TX 75132 | Oil & Gas Operator | Apr 2024 |
| 7 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 8 | Alps Oil Company | Odessa, TX 79760 | Oil & Gas Operator | Aug 1999 |
| 9 | Alta Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1995 |
| 10 | American Cometra, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2008 |
| 11 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 12 | Amtex Energy | Midland, TX 79702 | Oil & Gas Operator | Aug 1995 |
| 13 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Jan 2024 |
| 14 | Anderson, James K. Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 15 | Apache Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 16 | Arch Oil & Gas LLC | Dallas, TX 75248 | Oil & Gas Operator | Apr 2024 |
| 17 | Arkland Producing Co Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2023 |
| 18 | Armor Petroleum, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2024 |
| 19 | Atapco | Houston, TX 77040 | Oil & Gas Operator | Feb 1999 |
| 20 | Atlas Fuel Supply, LTD. | Houston, TX 77269 | Oil Operator | Apr 2024 |
| 21 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 22 | Atmos Pipeline - Texas | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 23 | Axtel Energy, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Apr 2024 |
| 24 | B & G Energy Corporation | Dallas, TX 75214 | Oil & Gas Operator | Apr 2024 |
| 25 | B & R Operating, LLC | San Angelo, TX 76903 | Oil & Gas Operator | Jan 2007 |
| 26 | B J Oil Company | Corsicana, TX 75109 | Oil & Gas Operator | Apr 2024 |
| 27 | Baker Resources | San Angelo, TX 76902 | Oil & Gas Operator | Aug 2021 |
| 28 | Banner Operating, LLC | Austin, TX 78735 | Oil & Gas Operator | Apr 2024 |
| 29 | Baron Energy LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2005 |
| 30 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Apr 2024 |
| 31 | Basa Resources Inc | Dallas, TX 75254 | Oil & Gas Operator | Apr 2024 |
| 32 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Apr 2024 |
| 33 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 34 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 35 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 36 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 37 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 38 | Berry, O. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 39 | Bissell Operating LLC | San Antonio, TX 78216 | Oil Operator | Oct 2016 |
| 40 | Black Gold Well Service | San Angelo, TX 76901 | Oil & Gas Operator | Apr 2024 |
| 41 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
| 42 | Blue Darter Energy, LLC | Sunnyvale, TX 75182 | Oil & Gas Operator | Aug 2019 |
| 43 | Blue Ridge Oil & Gas Exp., Inc. | Belleville, MI 48111 | Gas Operator | Jul 1994 |
| 44 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 45 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2024 |
| 46 | Boaz Energy, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2014 |
| 47 | Bob Hughes Oil Company, LLC | San Angelo, TX 76901 | Oil & Gas Operator | Apr 2024 |
| 48 | Bowman, Fred Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2014 |
| 49 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 50 | Braman, D. H., Jr. | Victoria, TX 77901 | Oil & Gas Operator | Dec 2008 |
| 51 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 52 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 53 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 54 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2024 |
| 55 | Brown, C. L. Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Dec 1999 |
| 56 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 57 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 58 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 59 | Bubenik, Ronnie, Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Apr 2024 |
| 60 | Bulldog Operating Company | Artesia, NM 88211 | Oil & Gas Operator | Jan 2014 |
| 61 | Burger, F.W. Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 62 | Burgundy Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 63 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 64 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 65 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 66 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 67 | C. H. Levens, Inc. | Water Valley, TX 76958 | Oil Operator | Apr 2024 |
| 68 | Cabana Oil Corp. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2006 |
| 69 | Cada Operating, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2004 |
| 70 | Caminar Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Apr 2024 |
| 71 | Campana Petroleum Company | Midland, TX 79708 | Oil & Gas Operator | Apr 2024 |
| 72 | Canyon Exploration Co. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2023 |
| 73 | Capataz Operating Inc | Midland, TX 79702 | Oil & Gas Operator | Sep 2020 |
| 74 | Caraway Operating Co. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2024 |
| 75 | Carburante Exploration Co, LTD. | Granbury, TX 76048 | Oil & Gas Operator | Apr 2024 |
| 76 | Castle Gas Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Oct 2014 |
| 77 | Centaur Petroleum Corporation | Fort Worth, TX 76101 | Oil & Gas Operator | Apr 2024 |
| 78 | Charter Petroleum Company | Abilene, TX 79605 | Oil & Gas Operator | Apr 2024 |
| 79 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 80 | Cholla Petroleum, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
| 81 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 82 | Clear Fork, Incorporated | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 83 | Clear Water Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 84 | Clearfork Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2011 |
| 85 | Clearfork Production, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2018 |
| 86 | Co Energy | Benbrook, TX 76126 | Oil & Gas Operator | Apr 2024 |
| 87 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 88 | Cobalt Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2023 |
| 89 | Cockrell Production Co., Inc. | Irving, TX 75014 | Oil & Gas Operator | Apr 2024 |
| 90 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 91 | Coleville Petroleum Company | McAllen, TX 78503 | Oil & Gas Operator | Mar 1996 |
| 92 | Colo Exploration Company, Inc. | Benbrook, TX 76126 | Oil & Gas Operator | Apr 2024 |
| 93 | Compass Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2024 |
| 94 | Compass Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 95 | Concho Oilfield Serv & Oper Co. | Eden, TX 76837 | Oil & Gas Operator | Apr 2024 |
| 96 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 97 | Contango Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 98 | Contango Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2024 |
| 99 | Copper Ridge Resources LLC | Midland, TX 79710 | Oil Operator | Apr 2023 |
| 100 | Core Petro, LLC | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |