| 2201 | Cherry Oil & Gas | Luling, TX 78648 | Oil & Gas Operator | Dec 2000 |
| 2202 | Cherry, William H., Inc. | Oklahoma City, OK 73125 | Oil & Gas Operator | Mar 2015 |
| 2203 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2026 |
| 2204 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2025 |
| 2205 | Chesapeake Permian LP | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Feb 2015 |
| 2206 | Chesher Oil Company | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 2207 | Chesher, Robert | Holliday, TX 76366 | Oil & Gas Operator | Dec 1995 |
| 2208 | Chesnut Oil And Gas, Inc. | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Feb 2026 |
| 2209 | Chesnutt Oil & Gas, Inc. | Mineral, TX 78125 | Oil & Gas Operator | Feb 2026 |
| 2210 | Chessher, Otto Drilling Company | Kearney, MO 64060 | Oil & Gas Operator | Dec 2013 |
| 2211 | Chestnut Explor. And Prod., Inc. | Dallas, TX 75208 | Oil & Gas Operator | Feb 2026 |
| 2212 | Chestnut Mountain Energy, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Feb 2026 |
| 2213 | Chestnut Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2214 | Chestnut Petroleum, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Nov 2011 |
| 2215 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 2216 | Chevron Pipe Line Company | Houston, TX 77001 | Oil Operator | Feb 2015 |
| 2217 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 2218 | Cheyenne Minerals, Inc. | Houston, TX 77030 | Oil & Gas Operator | Jun 2001 |
| 2219 | Cheyenne Petroleum Company | Oklahoma City, OK 73134 | Oil & Gas Operator | Feb 2026 |
| 2220 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 2221 | Chicken Coop, Inc., The | Hondo, TX 78861 | Oil & Gas Operator | Jan 2015 |
| 2222 | Chico Production Corp. | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 2223 | Chief Oil & Gas LLC | Dallas, TX 75225 | Oil & Gas Operator | Feb 2022 |
| 2224 | Chief Operating Company | Houston, TX 77070 | Oil & Gas Operator | Feb 2004 |
| 2225 | Chief Operating LLC | Dallas, TX 75225 | Gas Operator | Mar 2009 |
| 2226 | Chief Petroleum Company | Dallas, TX 75244 | Oil & Gas Operator | Jul 1997 |
| 2227 | Childers, J. C. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 2228 | Chiltipin Production Company | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Feb 2026 |
| 2229 | Chilton Energy | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2006 |
| 2230 | China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Jun 2010 |
| 2231 | Chinn Exploration Company | Longview, TX 75605 | Oil & Gas Operator | Nov 2015 |
| 2232 | Chiodo Corp. | San Antonio, TX 78232 | Oil & Gas Operator | Feb 2026 |
| 2233 | Chisholm Exploration | Abilene, TX 79604 | Oil & Gas Operator | Feb 2026 |
| 2234 | Chisholm Oil & Gas, LC | Buda, TX 78610 | Oil & Gas Operator | Feb 2026 |
| 2235 | Chisholm Oil Investments | Seabrook, TX 77586 | Oil & Gas Operator | Feb 2026 |
| 2236 | Chisholm Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Feb 2026 |
| 2237 | Chisos Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 2238 | Chisos, LTD | Houston, TX 77098 | Oil & Gas Operator | Feb 2026 |
| 2239 | Chisum Resources | Shallowater, TX 79363 | Oil Operator | Feb 2026 |
| 2240 | Chital Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2000 |
| 2241 | Chittim Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Feb 2026 |
| 2242 | Chmelar, Eugene Oil & Gas | Caldwell, TX 77836 | Oil & Gas Operator | Feb 2026 |
| 2243 | Choctaw II Oil & Gas, LTD. | Houston, TX 77002 | Oil & Gas Operator | Jan 2002 |
| 2244 | Choctaw Resources, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Dec 2019 |
| 2245 | Choice Exploration, Inc. | Irving, TX 75063 | Oil & Gas Operator | Feb 2026 |
| 2246 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 2247 | CHP Oil & Gas Company, L.C. | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 2248 | Christensen & Matthews | Houston, TX 77040 | Oil & Gas Operator | Feb 2026 |
| 2249 | Christeve Oil Company, Inc. | Houston, TX 77068 | Oil & Gas Operator | Dec 2022 |
| 2250 | Christian Energy, Inc. | Mandeville, LA 70470 | Oil & Gas Operator | Mar 2008 |
| 2251 | Christian Operating Company | Cypress, TX 77429 | Oil & Gas Operator | Dec 2014 |
| 2252 | Christico Petroleum Company | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2026 |
| 2253 | Christie Oil Co., Inc | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 1996 |
| 2254 | Christie, C. B., Jr. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2014 |
| 2255 | Christopher Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | Apr 2015 |
| 2256 | Chroma Operating, Inc. | Washington, DC 20036 | Oil & Gas Operator | Jun 2016 |
| 2257 | Chumley, George Estate Of | Alice, TX 78333 | Oil & Gas Operator | Feb 2026 |
| 2258 | Church Ranch, LLC | Lubbock, TX 79423 | Oil Operator | Feb 2026 |
| 2259 | Chuza Operating | Midland, TX 79710 | Oil & Gas Operator | Sep 2006 |
| 2260 | Cibolo Energy Operating, Inc. | Bulverde, TX 78163 | Oil & Gas Operator | Feb 2026 |
| 2261 | Cibolo Production, LLC | Boerne, TX 78006 | Oil Operator | Jan 2020 |
| 2262 | Cico Oil & Gas Company | Houston, TX 77057 | Oil & Gas Operator | Aug 2019 |
| 2263 | Ciervo Resources Asset Holding, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 2264 | Cig Exploration Inc | Houston, TX 77046 | Oil & Gas Operator | Nov 1999 |
| 2265 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 2266 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 2267 | Cimarron Engineering Corp. | Kingsville, TX 78364 | Oil & Gas Operator | May 2015 |
| 2268 | Cimarron Engineering, LLC | Kingsville, TX 78364 | Oil & Gas Operator | Feb 2026 |
| 2269 | Cimarron Properties, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | Nov 1997 |
| 2270 | Cinco Natural Resources Corp | La Grange, TX 78945 | Oil & Gas Operator | Feb 2026 |
| 2271 | Cinco Oil & Gas, LLC | Irving, TX 75039 | Oil & Gas Operator | Feb 2026 |
| 2272 | Cinnabar Energy, LTD. | Fort Worth, TX 76107 | Oil & Gas Operator | May 2018 |
| 2273 | Cinnabar Operating, LLC | Fort Worth, TX 76121 | Oil & Gas Operator | Feb 2026 |
| 2274 | Cinron Energy, LLC | Arp, TX 75750 | Oil & Gas Operator | Feb 2026 |
| 2275 | Cippele Resources Co. | Longview, TX 75608 | Oil & Gas Operator | May 1994 |
| 2276 | Circle "M" Energy Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Aug 2003 |
| 2277 | Circle B Oil & Gas | Bowie, TX 76230 | Oil & Gas Operator | Dec 2021 |
| 2278 | Circle C Operations | Winnsboro, TX 75494 | Oil Operator | Feb 2026 |
| 2279 | Circle D Oil & Gas, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Feb 2026 |
| 2280 | Circle H Oil Company | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2020 |
| 2281 | Circle M Royalty Co., Inc. | Weatherford, TX 76087 | Oil & Gas Operator | May 2007 |
| 2282 | Circle Ridge Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2283 | Circle S Production, Inc. | FT McKavett, TX 76841 | Oil & Gas Operator | May 2000 |
| 2284 | Circle W Oil & Gas Company | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 2285 | Circle W Operating, Inc. | Mertzon, TX 76941 | Oil & Gas Operator | Feb 2026 |
| 2286 | Circle-S Energy, LLC | McKinney, TX 75071 | Oil & Gas Operator | Feb 2026 |
| 2287 | Cirrus Exploration Company | Prosper, TX 75078 | Oil & Gas Operator | Feb 2026 |
| 2288 | Cirrus Production Company | Enid, OK 73702 | Oil & Gas Operator | Nov 2025 |
| 2289 | Cisco Operating LLC | Plano, TX 75024 | Oil & Gas Operator | Dec 2025 |
| 2290 | Cisco Production Company, LLC | Victoria, TX 77902 | Oil & Gas Operator | May 2012 |
| 2291 | Citation Oil & Gas Corp | Houston, TX 77269 | Oil & Gas Operator | Feb 2026 |
| 2292 | Citori Oil Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2004 |
| 2293 | Citori Oil Company, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2014 |
| 2294 | Citrus Energy Corporation | Castle Rock, CO 80104 | Oil & Gas Operator | Mar 2020 |
| 2295 | City Of Brady | Brady, TX 76825 | Gas Operator | Feb 1998 |
| 2296 | City Of Dumas | Dumas, TX 79029 | Gas Operator | Feb 2026 |
| 2297 | City Of McLean | McLean, TX 79057 | Gas Operator | Aug 2025 |
| 2298 | City Of Sunray Utilities | Sunray, TX 79086 | Oil & Gas Operator | Feb 2026 |
| 2299 | City Of White Deer | White Deer, TX 79097 | Gas Operator | May 2017 |
| 2300 | Civitas Permian Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2026 |