| 5101 | Centennial Energy Corp. | Big Lake, TX 76932 | Oil & Gas Operator | Jan 1997 |
| 5102 | Centennial Exploration, Inc. | | Oil & Gas Operator | Dec 1985 |
| 5103 | Centennial Resource Prod, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2023 |
| 5104 | Centennial Resources Inc | Drumright, OK 74030-1234 | Oil & Gas Operator | Dec 2007 |
| 5105 | Center Dean Dba Center Operating Co | | Oil & Gas Operator | Jul 2003 |
| 5106 | Center Junction Corp | | Oil Operator | Mar 2009 |
| 5107 | Center Oil Company | Ada, OK 74821-0584 | Oil Operator | May 2003 |
| 5108 | Center Production Company LLC | Ada, OK 74820 | Oil Operator | Apr 2026 |
| 5109 | Center Start, LC | Kilgore, TX 75663 | Oil & Gas Operator | May 2008 |
| 5110 | Centerfire Resources | Springerville, AZ 85938 | Oil & Gas Operator | Jun 2026 |
| 5111 | Centergate Resources LLC | | Oil & Gas Operator | Dec 2024 |
| 5112 | Centerpoint Energy FLD Ser Inc | | Oil Operator | Feb 2011 |
| 5113 | Centerpoint Water Disposal Inc | | Oil & Gas Operator | Aug 1984 |
| 5114 | Centex Energy, LLC | Bryan, TX 77802 | Oil & Gas Operator | Jun 2026 |
| 5115 | Centex Pipe & Equipment, Inc. | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 5116 | Central Basin Oil Inv. Inc. | Southlake, TX 76092 | Oil & Gas Operator | Jun 2026 |
| 5117 | Central California Oil Company | Fish Camp, CA 93623 | Oil & Gas Operator | Mar 2026 |
| 5118 | Central Crude Corp. | Wichita, KS 67206 | Oil Operator | Mar 2014 |
| 5119 | Central Crude, Inc. | | Oil & Gas Operator | Jul 2014 |
| 5120 | Central Drilling Company, USA | Midland, TX 79710 | Oil & Gas Operator | May 2006 |
| 5121 | Central Energy C | | Oil & Gas Operator | Jun 1994 |
| 5122 | Central Energy Co Inc | Newark, OH 43055 | Oil & Gas Operator | Dec 1998 |
| 5123 | Central Energy Corporation | Wichita, KS 67202 | Oil & Gas Operator | Nov 1998 |
| 5124 | Central Energy Group, LLC | | Oil & Gas Operator | Dec 2020 |
| 5125 | Central Energy Producing Company | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2003 |
| 5126 | Central Gulf Petroleum Inc | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2026 |
| 5127 | Central Hydrocarbons, LLC | | Oil Operator | Dec 2013 |
| 5128 | Central Lease Inc. | | Oil & Gas Operator | Dec 1998 |
| 5129 | Central Min Oper Co, Inc. | | Gas Operator | Mar 1994 |
| 5130 | Central Mineral Management Inc | | Oil & Gas Operator | Jul 1990 |
| 5131 | Central Mineral Operating Co,Inc | San Antonio, TX 78216 | Oil & Gas Operator | Apr 1997 |
| 5132 | Central Montana Resources, LLC | San Antonio, TX 78209 | Oil Operator | Jul 2015 |
| 5133 | Central Oil Field Supply | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1991 |
| 5134 | Central Operating Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2026 |
| 5135 | Central Operating, LLC | | Oil & Gas Operator | Apr 2026 |
| 5136 | Central Pacific Group, Inc. | | Oil & Gas Operator | Dec 2003 |
| 5137 | Central Pacific Resources | | Oil Operator | Mar 2026 |
| 5138 | Central Park Energy | | Oil & Gas Operator | Dec 1991 |
| 5139 | Central Plains Oil&Gas Corp. (A) | Bryan, TX 77802 | Oil & Gas Operator | Mar 2003 |
| 5140 | Central Resources, Inc. | Denver, CO 80203 | Oil & Gas Operator | Dec 2019 |
| 5141 | Central States Energy LLC | Scottsdale, AZ 85260 | Gas Operator | Apr 2012 |
| 5142 | Central Texas Operating, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2026 |
| 5143 | Central Transmission Systems Co | | Oil & Gas Operator | Apr 2015 |
| 5144 | Central Valley Gas Storage LLC | | Gas Operator | Mar 2026 |
| 5145 | Central Wyoming Resources LTD | Glenrock, WY 82637 | Oil Operator | Jul 2021 |
| 5146 | Centrex Operating Company | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2026 |
| 5147 | Centura Inc | | Oil & Gas Operator | Feb 1985 |
| 5148 | Centurion Exploration Company | Houston, TX 77042 | Oil & Gas Operator | May 2009 |
| 5149 | Centurion Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Jul 2009 |
| 5150 | Centurion Oil & Gas Op. Co. Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 1998 |
| 5151 | Centurion Oil Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | May 1992 |
| 5152 | Centurion Oilfield Services LLC | Poteau, OK 74953 | Oil & Gas Operator | Mar 2026 |
| 5153 | Centurion Operating Corporation | Rockwall, TX 75087 | Oil & Gas Operator | Jun 2026 |
| 5154 | Centurion Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 5155 | Century Assets Corporation | Houston, TX 77056 | Oil Operator | Jun 2026 |
| 5156 | Century Energy | Gillette, WY 82717 | Oil & Gas Operator | Dec 1996 |
| 5157 | Century Energy, Inc. | | Oil & Gas Operator | Aug 1989 |
| 5158 | Century Exploration Company | | Oil & Gas Operator | Dec 2003 |
| 5159 | Century Exploration Houston, Inc | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2011 |
| 5160 | Century Exploration Houston, LLC | Austin, TX 78702 | Oil & Gas Operator | Jan 2016 |
| 5161 | Century Exploration N.O. LLC | | Oil & Gas Operator | Jun 2017 |
| 5162 | Century Exploration N.O., Inc. | | Oil & Gas Operator | Sep 2011 |
| 5163 | Century Exploration New Orleans, LLC | | Oil & Gas Operator | Mar 2008 |
| 5164 | Century Exploration Resources LLC | | Oil & Gas Operator | Dec 2015 |
| 5165 | Century Mineral Corporation | | Oil & Gas Operator | Dec 1990 |
| 5166 | Century Mining, LLC | | Gas Operator | Dec 2021 |
| 5167 | Century Offshore MGMT. Corp. | | Oil & Gas Operator | Dec 1999 |
| 5168 | Century Oil & Gas Corporation | | Oil & Gas Operator | Dec 1987 |
| 5169 | Century Oil And Gas LLC | Katy, TX 77494 | Oil & Gas Operator | Apr 2026 |
| 5170 | Century Oil Company Inc | | Oil Operator | Dec 2025 |
| 5171 | Century Oil Mana | | Oil Operator | Apr 1987 |
| 5172 | Century Oil, Inc. | | Oil Operator | Apr 2022 |
| 5173 | Century Petroleum | Nowata, OK 74048 | Oil & Gas Operator | Dec 2000 |
| 5174 | Century Petroleum, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2026 |
| 5175 | Century Production Inc | | Oil & Gas Operator | Dec 1986 |
| 5176 | Century Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 5177 | Century Royalty 2000 GP, LLC | Conroe, TX 77301 | Oil & Gas Operator | Jun 2020 |
| 5178 | Century Stimulation & Eng LLC | | Oil Operator | Dec 2015 |
| 5179 | Century Well Service | Cumberland, WV 26047 | Oil & Gas Operator | Dec 2006 |
| 5180 | Ceo Operating, Co. | | Oil & Gas Operator | Dec 1999 |
| 5181 | Cep Mid-Continent LLC | Skiatook, OK 74070 | Oil & Gas Operator | Apr 2026 |
| 5182 | Cerberus Engineering, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Jun 2026 |
| 5183 | Cerne, Christine | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 5184 | Cerro Oil Co., Inc. | | Oil Operator | Dec 1987 |
| 5185 | Certified Petroleum Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | May 2006 |
| 5186 | Cesinger Exploration Service, In | Dallas, TX 75208 | Oil & Gas Operator | Mar 2006 |
| 5187 | Cet Energy Corporation | Spring, TX 77391 | Oil & Gas Operator | Nov 2003 |
| 5188 | Cex Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 5189 | CFC Oil Inc | Cyril, OK 73029-5601 | Oil & Gas Operator | Apr 2026 |
| 5190 | CFM 66 LLC | McPherson, KS 67460 | Oil & Gas Operator | Jan 2026 |
| 5191 | CFM Oil, LLC | Artesia, NM 88210 | Oil & Gas Operator | Mar 2026 |
| 5192 | Cfo Resources, Inc. | Corpus Christ, TX 78412 | Oil & Gas Operator | Jun 2026 |
| 5193 | CFT Oil & Gas LLC | | Oil Operator | Mar 2026 |
| 5194 | CG Oil Co. | San Antonio, TX 78232 | Oil & Gas Operator | Mar 2011 |
| 5195 | CG Technical Operating Co, LLC | Stamford, TX 79553 | Oil Operator | Jun 2026 |
| 5196 | CG&G Oil LLC | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2021 |
| 5197 | Cgas Expl Inc | Columbus, OH 43214-1862 | Oil & Gas Operator | Dec 2006 |
| 5198 | Cgas Exploration | Charleston, WV 25301 | Oil & Gas Operator | Dec 2006 |
| 5199 | CGS Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2023 |
| 5200 | CH-Seon Inc. | Dallas, TX 75251 | Oil & Gas Operator | Jun 2026 |