| 23201 | Questar Energy Company | Salt Lake C Ity, UT 84147 | Gas Operator | May 1991 |
| 23202 | Questar Expl. And Prod. Co. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jul 2011 |
| 23203 | Questar Explor & Prod Co | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2017 |
| 23204 | Questar Exploration And Production Company Division Of Questar Urc Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2023 |
| 23205 | Quick Draw Tank Trucks Inc | Lamont, OK 74643-0158 | Oil Operator | Oct 1997 |
| 23206 | Quicksilver Resources Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2018 |
| 23207 | Quien Sabe Operating, LLC | Sundown, TX 79372 | Oil & Gas Operator | Nov 2023 |
| 23208 | Quiet Sun Investments, Inc. | | Oil & Gas Operator | Sep 2012 |
| 23209 | Quinex Energy Corp | Bountiful, UT 84010 | Oil & Gas Operator | Feb 2026 |
| 23210 | Quinlan Engineering | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 23211 | Quinn Energy Corp | MT Vernon, IN 47620 | Oil & Gas Operator | Oct 1999 |
| 23212 | Quinn Oil Produc | | Oil Operator | Dec 1987 |
| 23213 | Quinn, Karen | Round Rock, TX 78681 | Oil Operator | Sep 2018 |
| 23214 | Quinoco Petroleum Inc | | Oil & Gas Operator | Dec 1990 |
| 23215 | Quinque Operatin | | Oil & Gas Operator | Jul 1994 |
| 23216 | Quinque Operating Company | Liberal, KS 67905 | Oil & Gas Operator | Dec 2025 |
| 23217 | Quintana Minerals Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2003 |
| 23218 | Quintana Pet Okla Inc | Houston, TX 77002 | Oil & Gas Operator | Jun 1998 |
| 23219 | Quintana Pet. Corp. | Refugio, TX 78377 | Oil & Gas Operator | Dec 2000 |
| 23220 | Quintana Petrole | | Oil & Gas Operator | Dec 1995 |
| 23221 | Quintana Petroleum Corporation | Denver, CO 80265 | Oil & Gas Operator | Mar 1998 |
| 23222 | Quintana Petroleum Services | Houston, TX 77253 | Oil & Gas Operator | Jul 1997 |
| 23223 | Quintana Petroleum Services Inc | Houston, TX 77253 | Gas Operator | Apr 1996 |
| 23224 | Quintana Production Co. | | Oil & Gas Operator | Feb 1987 |
| 23225 | Quintana-H H Cullen-Carl O&G | | Oil & Gas Operator | Jul 1984 |
| 23226 | Quintanilla, Tony C. | Atascosa, TX 78002 | Oil & Gas Operator | Apr 2026 |
| 23227 | Quinton Rental & Repair Serv Inc | Quinton, OK 74561-0432 | Oil & Gas Operator | Mar 2015 |
| 23228 | Quintx Exploration, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Nov 2007 |
| 23229 | Quisenberry, Gene | | Oil & Gas Operator | Dec 2016 |
| 23230 | Quisto Energy Corp. | Kerrville, TX 78029 | Oil & Gas Operator | Jan 1998 |
| 23231 | Quisto Expl. & Production, L.C. | Sugar Land, TX 77478 | Oil & Gas Operator | Aug 1998 |
| 23232 | Quitman Construction Co., Inc. | Quitman, TX 75783 | Oil & Gas Operator | May 2011 |
| 23233 | Quito, Inc. | Bartlesville, OK 74003 | Oil & Gas Operator | Oct 2023 |
| 23234 | Quivira Gas Comp | | Gas Operator | Mar 1990 |
| 23235 | Quivira Oil & Ex | | Oil Operator | Sep 1985 |
| 23236 | Quorum Energy Company | Dallas, TX 75201 | Oil & Gas Operator | Apr 2026 |
| 23237 | Quorum Lease Bank | Dallas, TX 75240 | Oil Operator | Jun 1996 |
| 23238 | R & A Moore, Inc. | Cleburne, TX 76033 | Oil & Gas Operator | Apr 2026 |
| 23239 | R & A Oil, Inc. | Billings, MT 59105 | Oil & Gas Operator | Dec 2025 |
| 23240 | R & A Production Dba/R Lynch & A Engelke | Creston, WV 26141-7578 | Oil & Gas Operator | Dec 2021 |
| 23241 | R & B Energy Co. | Ranger, TX 76470 | Oil & Gas Operator | Mar 2008 |
| 23242 | R & B Energy, LLC | Shelby, MT 59474 | Oil Operator | Dec 2025 |
| 23243 | R & B Enterprises USA Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2024 |
| 23244 | R & B Oil & Gas | | Oil & Gas Operator | Jul 1995 |
| 23245 | R & B Oil & Gas Inc | Attica, KS 67009 | Oil & Gas Operator | Dec 2025 |
| 23246 | R & B Oil Company, LLC | Willis, TX 77318 | Oil & Gas Operator | Apr 2026 |
| 23247 | R & B Oil Company, LLC Of Texas | | Oil & Gas Operator | Jan 2025 |
| 23248 | R & B Operating LLC | Boynton, OK 74422 | Oil & Gas Operator | Mar 2025 |
| 23249 | R & B Petroleum, Inc. | Scarsdale, NY 10583 | Oil & Gas Operator | Dec 2021 |
| 23250 | R & B Trucking | Crescent, OK 73028-0775 | Oil & Gas Operator | Nov 2021 |
| 23251 | R & C Oil And Gas Inc | Ada, OK 74820-3150 | Oil Operator | Jul 2016 |
| 23252 | R & C Oil Company LLC | Westbrook, TX 79565 | Oil Operator | Apr 2026 |
| 23253 | R & C Petroleum, Inc. | Flint, TX 75762 | Oil & Gas Operator | Apr 2026 |
| 23254 | R & D Call | Cedar Vale, KS 67024 | Oil Operator | Oct 2010 |
| 23255 | R & D Holdings, Inc. | | Gas Operator | Feb 1991 |
| 23256 | R & D Oil & Gas | Exeter, CA 93221-9697 | Oil & Gas Operator | Aug 2019 |
| 23257 | R & D Oil LLC | Oklahoma City, OK 73154 | Oil Operator | Dec 2005 |
| 23258 | R & D Operating | Early, TX 76803 | Oil & Gas Operator | Mar 2008 |
| 23259 | R & D Operating, Inc. | Early, TX 76802 | Oil & Gas Operator | Apr 2026 |
| 23260 | R & D Reclaiming LLC | | Oil Operator | Aug 2022 |
| 23261 | R & E Enterprises | Paris, OH 44669 | Oil & Gas Operator | Dec 1995 |
| 23262 | R & E Oil Co., Inc. | Augusta, KS 67010 | Oil Operator | Dec 2009 |
| 23263 | R & F Land Co., Inc. | | Oil & Gas Operator | Jan 2000 |
| 23264 | R & G Drilling Co Inc | Farmington, NM 87499 | Oil & Gas Operator | Apr 1995 |
| 23265 | R & H LLC | Ardmore, OK 73401-6329 | Oil & Gas Operator | Mar 2015 |
| 23266 | R & H Oil & Gas Inc | | Oil & Gas Operator | Apr 1992 |
| 23267 | R & J Production, Inc. | Laurel, MT 59044 | Oil Operator | Mar 2006 |
| 23268 | R & J Well Service LLC | Utica, OH 43080 | Oil & Gas Operator | Dec 2024 |
| 23269 | R & L Oil Company | Copan, OK 74022 | Oil Operator | May 2020 |
| 23270 | R & L Producing Co., Inc. | Hamilton, TX 76531 | Oil & Gas Operator | Nov 1997 |
| 23271 | R & L Properties Inc | Richmond, MO 64085-0228 | Oil & Gas Operator | Apr 2001 |
| 23272 | R & M Energy | Gonzales, TX 78629 | Oil & Gas Operator | Mar 2006 |
| 23273 | R & M Oil Co. | Fredonia, KS 66736 | Oil & Gas Operator | Aug 2002 |
| 23274 | R & M Oil, LLC | Loco Hills, NM 882550011 | Oil & Gas Operator | May 2025 |
| 23275 | R & N Associates | Grapevine, TX 76051 | Oil & Gas Operator | Feb 2025 |
| 23276 | R & N Associates,Etal Glen Neubert, Agent | Dallas, TX 75244-5100 | Oil Operator | Sep 2005 |
| 23277 | R & N Oil Company | Fairfax, OK 74637 | Oil & Gas Operator | May 2013 |
| 23278 | R & N Resources LLC | Bear Lake, PA 16402-2926 | Oil & Gas Operator | Dec 2025 |
| 23279 | R & P Oil Co. | | Oil & Gas Operator | Jul 2014 |
| 23280 | R & P Operating | Tuscola, TX 79562 | Oil & Gas Operator | Jun 1997 |
| 23281 | R & R Energy, LTD. | Muenster, TX 76252 | Oil Operator | Apr 2026 |
| 23282 | R & R Entertainment Inc. | | Oil & Gas Operator | Dec 2011 |
| 23283 | R & R Oil & Gas LLC | Big Spring, TX 79720 | Oil & Gas Operator | Dec 2024 |
| 23284 | R & R Oil Company | Pampa, TX 79065 | Oil & Gas Operator | Jul 2002 |
| 23285 | R & R Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2004 |
| 23286 | R & R Partners | | Oil Operator | Oct 2009 |
| 23287 | R & R Production Company | | Oil Operator | Feb 2000 |
| 23288 | R & R Production, Inc. | | Oil & Gas Operator | Feb 1990 |
| 23289 | R & R Well Service | Fort Worth, TX 76120 | Oil & Gas Operator | Jan 2005 |
| 23290 | R & R Well Service, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Apr 2026 |
| 23291 | R & S Energy Company | Luling, TX 78648 | Oil & Gas Operator | Dec 2010 |
| 23292 | R & S Energy, Inc. | Snook, TX 77878 | Oil & Gas Operator | Apr 2026 |
| 23293 | R & S Exploration & Production | Lawton, OK 73501 | Oil Operator | Jan 1996 |
| 23294 | R & S Investments | Tulsa, OK 74146-4743 | Oil Operator | Aug 2013 |
| 23295 | R & S Oil Company | Tonkawa, OK 74653 | Oil & Gas Operator | Nov 2013 |
| 23296 | R & S Oil Production Co. | Luling, TX 78648 | Oil & Gas Operator | Apr 2026 |
| 23297 | R & S Operating | Perry, OK 73077 | Oil & Gas Operator | Jan 2013 |
| 23298 | R & S Resource LLC | Kellyville, OK 74039 | Oil Operator | Dec 2025 |
| 23299 | R & W Energies - | | Oil Operator | Sep 1995 |
| 23300 | R & W Energies LLC | Eureka, KS 67045 | Oil Operator | Dec 2025 |