| 1 | 1920 Energy, LLC | Allen, TX 75013 | Oil & Gas Operator | May 2025 |
| 2 | 7S Oil & Gas, LLC | Midland, TX 79706 | Oil & Gas Operator | Dec 2019 |
| 3 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 4 | Antelope Energy Partners, LLC | Houston, TX 77027 | Oil & Gas Operator | May 2025 |
| 5 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | May 2025 |
| 6 | Apr Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2022 |
| 7 | Apv McCamey LLC | MC Camey, TX 79752 | Oil & Gas Operator | May 2025 |
| 8 | Arch Oil & Gas, LLC | Dallas, TX 75254 | Oil & Gas Operator | May 2025 |
| 9 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
| 10 | Arrington Oil&Gas Operating LLC | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 11 | Arrington,David H. Oil & Gas,Inc | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 12 | Arris Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2016 |
| 13 | Atapco | Houston, TX 77040 | Oil & Gas Operator | Feb 1999 |
| 14 | Atlantic Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
| 15 | Atlantic Resources Company, LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
| 16 | B & B Operating Company | Odessa, TX 79760 | Oil & Gas Operator | May 2025 |
| 17 | B L Oil And Gas | Loco Hills, NM 88255 | Oil & Gas Operator | Aug 2010 |
| 18 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 19 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 20 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 21 | BHP Billiton Pet(Txla Op) Co | Denver, CO 80202 | Oil & Gas Operator | Jul 2019 |
| 22 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 23 | Black Top Operating, LLC | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 24 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 25 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | May 2025 |
| 26 | Brahaney Drilling Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2014 |
| 27 | Brahman Oil & Gas, LLC | Houston, TX 77063 | Oil & Gas Operator | May 2025 |
| 28 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 29 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 30 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 31 | Callon (Permian) LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
| 32 | Cambrian Management LTD | McCaulley, TX 79534 | Oil & Gas Operator | May 2025 |
| 33 | Capitan Energy, Incorporated | Carlsbad, NM 88221 | Oil & Gas Operator | May 2025 |
| 34 | Carrizo (Eagle Ford) LLC | Houston, TX 77042 | Oil & Gas Operator | Jan 2020 |
| 35 | Carrizo (Permian) LLC | Houston, TX 77042 | Oil & Gas Operator | Jan 2020 |
| 36 | Chapman, Ford Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 1996 |
| 37 | Charger Shale Oil Operating, LLC | Austin, TX 78704 | Oil & Gas Operator | Sep 2021 |
| 38 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 2025 |
| 39 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 40 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 41 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 42 | Cinnabar Energy, LTD. | Fort Worth, TX 76107 | Oil & Gas Operator | May 2018 |
| 43 | Cinnabar Operating, LLC | Fort Worth, TX 76121 | Oil & Gas Operator | May 2025 |
| 44 | Claron Corporation | Houston, TX 77219 | Oil & Gas Operator | May 2025 |
| 45 | CM TX Production, LLC | Lakewood, CO 80228 | Oil & Gas Operator | Feb 2023 |
| 46 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 47 | COG Production LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 48 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 49 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 50 | Crownquest Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 51 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 52 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2025 |
| 53 | Dugan Production Corp | Farmington, NM 87499 | Oil & Gas Operator | Mar 2025 |
| 54 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
| 55 | Encore Permian Operating, LLC | Uvalde, TX 78801 | Oil & Gas Operator | May 2025 |
| 56 | Energen Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2021 |
| 57 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Jan 2025 |
| 58 | Enerquest Oil & Gas LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Feb 2025 |
| 59 | Enerquest Operating, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | May 2025 |
| 60 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
| 61 | EOG Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 62 | Et Gathering & Processing LLC | Dallas, TX 75225 | Oil Operator | Dec 2024 |
| 63 | Etc Texas Pipeline, LTD. | Dallas, TX 75225 | Oil Operator | Sep 2023 |
| 64 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2024 |
| 65 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | May 2025 |
| 66 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 67 | G P II Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2020 |
| 68 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 69 | Graham, Bill J. Oil & Gas Corp. | Midland, TX 79710 | Oil & Gas Operator | Nov 2000 |
| 70 | Graystone Exploration Corp. | Garland, TX 75043 | Oil & Gas Operator | Aug 2003 |
| 71 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 72 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 73 | Hallwood Petroleum, LLC | Dallas, TX 75219 | Oil & Gas Operator | Jan 2010 |
| 74 | Halvey Energy Co. | Midland, TX 79702 | Oil & Gas Operator | Oct 2004 |
| 75 | Halvey Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 76 | Harmony Drilling Company, Inc. | Denver, CO 80222 | Oil & Gas Operator | Nov 2016 |
| 77 | Herricks Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Jan 2010 |
| 78 | Hopper, Harlan | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 79 | Hopper, Thornton Co. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 80 | Hughes, Dan A. Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | May 2025 |
| 81 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | May 2025 |
| 82 | Incline Energy | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 83 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | May 2025 |
| 84 | JMC Resources Corp. | Houston, TX 77077 | Oil & Gas Operator | May 2025 |
| 85 | JRC Petroleum | Pecos, TX 79772 | Oil & Gas Operator | May 2025 |
| 86 | K3 Productions LLC | Houston, TX 77269 | Oil & Gas Operator | May 2025 |
| 87 | Kimlar Oil Company | Kermit, TX 79745 | Oil & Gas Operator | May 2025 |
| 88 | King Operating Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | May 2025 |
| 89 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | May 2025 |
| 90 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | May 2025 |
| 91 | Limestone Exploration II, LLC | Midland, TX 79704 | Oil & Gas Operator | Jun 2019 |
| 92 | Lively Energy & Development Corp | Boerne, TX 78015 | Oil & Gas Operator | May 2015 |
| 93 | Lovelady, I. W. | Albuquerque, NM 87111 | Oil & Gas Operator | Jan 1996 |
| 94 | Manhattan Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 95 | Manzano Oil Corporation | Roswell, NM 88202 | Oil & Gas Operator | Feb 2005 |
| 96 | Maralo, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1998 |
| 97 | Maralo, LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 98 | Meco IV Holdco, LLC | Lakewood, CO 80227 | Oil & Gas Operator | Jul 2022 |
| 99 | Meco IV, LLC | Lakewood, CO 80227 | Oil & Gas Operator | Jul 2021 |
| 100 | Meeker & Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |