| 7201 | D.K. Rush Oil Co., LLC | El Dorado, KS 67042 | Oil Operator | Apr 2026 |
| 7202 | D.K.D. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2026 |
| 7203 | D.M. Well Service | | Oil Operator | Dec 2019 |
| 7204 | D.N.I. | Bangs, TX 76823 | Oil & Gas Operator | Aug 2026 |
| 7205 | D.O.E. Energy | Palestine, TX 75801 | Oil & Gas Operator | Aug 2026 |
| 7206 | D.T. Inc. | Abilene, TX 79608 | Oil & Gas Operator | Aug 2026 |
| 7207 | D.W.P. Production | Perryton, TX 79070 | Oil & Gas Operator | Nov 2020 |
| 7208 | D.W.R. Oil Properties, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Jun 2026 |
| 7209 | D.W.S. Properties | Sterling, KS 67579 | Oil Operator | Mar 2006 |
| 7210 | D.Y. Exploration, Inc. | Boise, ID 83705 | Oil & Gas Operator | Aug 2026 |
| 7211 | D10 Energy LLC | Stinnett, TX 79083 | Oil & Gas Operator | Aug 2026 |
| 7212 | D90 Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Aug 2026 |
| 7213 | Da Co Petroleum, Inc. | Wann, OK 74083 | Gas Operator | Apr 2003 |
| 7214 | Da Crowe & Associates, Inc | Chappell Hill, TX 77426 | Oil & Gas Operator | Sep 2010 |
| 7215 | Da Energy, LLC | Lees Summit, MO 64063 | Oil Operator | Apr 2026 |
| 7216 | Dab And Associates Inc | Crescent, OK 73028-0580 | Oil & Gas Operator | Nov 2014 |
| 7217 | Dab Limited | Oklahoma City, OK 73116-9082 | Oil & Gas Operator | Aug 2013 |
| 7218 | Dabb Energy Company | Fort Worth, TX 76132 | Oil & Gas Operator | Aug 2020 |
| 7219 | Dac Oil Corporation | | Oil & Gas Operator | Dec 1985 |
| 7220 | Dacar Energy, Inc | | Oil Operator | Dec 2015 |
| 7221 | Daco Oil | Joinerville, TX 75658 | Oil & Gas Operator | Aug 2019 |
| 7222 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Aug 2026 |
| 7223 | Dacott Oil & Gas, LLC | Pampa, TX 79065 | Oil & Gas Operator | Sep 2011 |
| 7224 | Daesung Energy Resources Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2026 |
| 7225 | Daf Operating, LLC | Houston, TX 77005 | Oil & Gas Operator | Aug 2026 |
| 7226 | Dahab Energy Inc. | Dallas, TX 75225 | Oil & Gas Operator | Aug 2026 |
| 7227 | Dahco Operating, LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Aug 2026 |
| 7228 | Dahill Murray P | Casper, WY 82601 | Oil & Gas Operator | Jun 2007 |
| 7229 | Dahl & Smith Oil Co | Barnsdall, OK 74002 | Oil & Gas Operator | Aug 1999 |
| 7230 | Dahl Randall Lee | Barnsdall, OK 74002 | Oil Operator | Apr 2026 |
| 7231 | Dahl SWD Facility #1 LLC | Oklahoma City, OK 73118 | Gas Operator | Dec 2017 |
| 7232 | Dahlia Operating LLC | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2018 |
| 7233 | Dailey Oil And Gas LLC | | Oil & Gas Operator | Jun 2019 |
| 7234 | Daily, Carroll | Loving, TX 76460 | Oil & Gas Operator | Sep 2023 |
| 7235 | Dain Oil | Graham, TX 76450 | Oil & Gas Operator | Dec 2007 |
| 7236 | Daisy Pointer | | Oil Operator | Jul 1999 |
| 7237 | Dakar Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |
| 7238 | Dakota Crude, Inc. | | Oil & Gas Operator | May 2026 |
| 7239 | Dakota Drilling, LLC | Wichita, KS 67205 | Oil Operator | Feb 2006 |
| 7240 | Dakota Exploration LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2026 |
| 7241 | Dakota Oil & Gas Co | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2025 |
| 7242 | Dakota Oil Company | Hebbronville, TX 78361 | Oil & Gas Operator | Aug 2026 |
| 7243 | Dakota Opr Co Inc | Indiana, PA 15701-0444 | Oil & Gas Operator | Dec 1999 |
| 7244 | Dakota Production Co., Inc. | Neodesha, KS 66757 | Gas Operator | Apr 2026 |
| 7245 | Dakota Resources | | Oil & Gas Operator | Jan 1989 |
| 7246 | Dakota Resources, Inc | Midland, TX 79707 | Oil & Gas Operator | May 2026 |
| 7247 | Dakota Resources, Inc. (I) | Midland, TX 79707 | Oil & Gas Operator | Aug 2026 |
| 7248 | Dakota West Pumping, Inc. | | Oil & Gas Operator | Feb 2004 |
| 7249 | Dakota-3 E&P Company, LLC | | Oil & Gas Operator | Jan 2012 |
| 7250 | Dal-Long Oil Company | Longview, TX 75608 | Oil Operator | Feb 2001 |
| 7251 | Dalco Petroleum Inc | | Oil & Gas Operator | Jan 2006 |
| 7252 | Dalcor Energy LLC | Duncan, OK 73534 | Oil & Gas Operator | Nov 2025 |
| 7253 | Dale E. Jackson Production Co. | | Oil Operator | Apr 2026 |
| 7254 | Dale Expl Co & R. A. Campbell | | Oil Operator | Nov 1995 |
| 7255 | Dale Exploration Co. | | Oil & Gas Operator | May 2004 |
| 7256 | Dale George | Elmore City, OK 73433 | Oil & Gas Operator | Aug 2022 |
| 7257 | Dale Jimmy | Davis, OK 73030 | Oil & Gas Operator | Mar 2015 |
| 7258 | Dale O. Reese | | Oil Operator | Nov 1989 |
| 7259 | Dale O. Reese, Inc. | | Oil Operator | Jul 1997 |
| 7260 | Dale Operating Company | Dallas, TX 75207 | Oil & Gas Operator | Aug 2026 |
| 7261 | Dale Operations, LLC | Dickinson, TX 77539 | Oil & Gas Operator | Aug 2026 |
| 7262 | Dale R & George W Magee | Duke Center, PA 16729-0217 | Oil & Gas Operator | Dec 2010 |
| 7263 | Dale U & Martha E Livermore | Brookville, PA 15825-7524 | Gas Operator | Dec 2024 |
| 7264 | Dale, David Dba DD Oil Company | Spencer, WV 25276-0406 | Oil & Gas Operator | Dec 2021 |
| 7265 | Dale, Doyle C. | Poolville, TX 76487 | Oil & Gas Operator | Sep 2018 |
| 7266 | Daleco Resources | | Gas Operator | Dec 2000 |
| 7267 | Daleco Resources, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Mar 2008 |
| 7268 | Dalen Resources Oil & Gas | Dallas, TX 75206-3922 | Oil & Gas Operator | Jan 1996 |
| 7269 | Dalen Resources Oil & Gas Co | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 7270 | Dales Oil Company | Loving, TX 76460 | Oil Operator | Aug 2026 |
| 7271 | Dales Tank Service Inc | Ratliff City, OK 73481 | Oil & Gas Operator | Apr 2026 |
| 7272 | Dalf Energy LLC | Pampa, TX 79066 | Oil & Gas Operator | Aug 2026 |
| 7273 | Dallas DRLG. & Development Co. | | Oil & Gas Operator | Apr 1987 |
| 7274 | Dallas Energy LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2025 |
| 7275 | Dallas Operating Corp. | Dallas, TX 75205 | Oil & Gas Operator | Nov 2006 |
| 7276 | Dallas Petroleum Group, LLC | Dallas, TX 75379 | Oil & Gas Operator | Aug 2026 |
| 7277 | Dallas Production | Dallas, TX 75206 | Oil & Gas Operator | Sep 1996 |
| 7278 | Dallas Production Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Aug 2026 |
| 7279 | Dallas Production, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2021 |
| 7280 | Dallas Resources, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Dec 1997 |
| 7281 | Dallas Royalty, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2012 |
| 7282 | Dally'S Oil Co. LLC | Monahans, TX 79756 | Oil Operator | Aug 2026 |
| 7283 | Dalnor Corporation | | Oil & Gas Operator | Nov 2010 |
| 7284 | Dalport Oil Corporation | Dallas, TX 75202 | Oil & Gas Operator | Apr 1993 |
| 7285 | Dalton & Hanna LTD | Wooster, OH 44691 | Oil & Gas Operator | Dec 2018 |
| 7286 | Dalton J. Woods | | Oil & Gas Operator | Dec 1985 |
| 7287 | Damar Resc Incor | | Oil Operator | Oct 1995 |
| 7288 | Damar Resources, Inc. | Hays, KS 67601 | Oil & Gas Operator | Aug 2025 |
| 7289 | Dameron Petroleum Corp. | Midland, TX 79708 | Oil & Gas Operator | Aug 2026 |
| 7290 | Damian Oil, Inc. | | Oil & Gas Operator | Dec 2024 |
| 7291 | Damron Energy | Eden, TX 76837 | Oil & Gas Operator | Jan 2015 |
| 7292 | Damron Energy, LLC | Eden, TX 76837 | Oil & Gas Operator | Aug 2026 |
| 7293 | Damson Oil Corpo | | Oil & Gas Operator | May 1994 |
| 7294 | Damson Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Mar 2005 |
| 7295 | Damson-Franks-McCord-Goodrich | | Oil & Gas Operator | Aug 1984 |
| 7296 | Dan A. Hughes Company | | Oil & Gas Operator | Dec 2005 |
| 7297 | Dan A. Hughes Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | May 2026 |
| 7298 | Dan C Berry | Eunice, NM 88231 | Oil Operator | Oct 1995 |
| 7299 | Dan Owens | | Oil & Gas Operator | Jul 1993 |
| 7300 | Dan Strong Jr | Midland, TX 79702 | Oil & Gas Operator | Mar 1994 |