| 8001 | Dixie Lake Operating, LLC | Longview, TX 75606 | Gas Operator | Aug 2026 |
| 8002 | Dixie Natural Gas Co. | | Oil & Gas Operator | Dec 2002 |
| 8003 | Dixie Oil Company Inc | Moore, OK 73153 | Oil & Gas Operator | Nov 1994 |
| 8004 | Dixie Oil Incorp | | Oil Operator | Jul 1992 |
| 8005 | Dixie Oil, LLC | Hamilton, KS 66853 | Oil Operator | Mar 2026 |
| 8006 | Dixie Operating Company | Spring, TX 77379 | Oil & Gas Operator | Dec 2002 |
| 8007 | Dixie Petroleum Inc | Cashion, OK 73016 | Oil & Gas Operator | May 2001 |
| 8008 | Dixie Well Service, Inc. | | Oil & Gas Operator | Jul 1995 |
| 8009 | Dixieland Energy LLC | Nacogdoches, TX 75963 | Oil & Gas Operator | Aug 2026 |
| 8010 | Dixon David | Okmulgee, OK 74447-2066 | Oil & Gas Operator | Apr 2026 |
| 8011 | Dixon Energy, Inc. | Wichita, KS 67226 | Oil & Gas Operator | Sep 2023 |
| 8012 | Dixon Exploration Inc | Abilene, TX 79604 | Oil & Gas Operator | Oct 2019 |
| 8013 | Dixon J C | Okmulgee, OK 74447-8522 | Oil & Gas Operator | Mar 2026 |
| 8014 | Dixon Management Corp. | | Oil & Gas Operator | May 1984 |
| 8015 | Dixon Oil Compan | | Oil Operator | Apr 1994 |
| 8016 | Dixon Operating Company, LLC | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 8017 | Dixon, Bucky | | Oil & Gas Operator | Aug 2016 |
| 8018 | Dixon, Margaret | Moline, KS 67353 | Oil Operator | Dec 2009 |
| 8019 | Dixon, Mike | Moline, KS 67353 | Oil Operator | Apr 2026 |
| 8020 | Dixon, N. D. | Midland, TX 79702 | Oil & Gas Operator | Feb 2003 |
| 8021 | Dixon, Robin Francine | Moline, KS 67353 | Oil Operator | Apr 2026 |
| 8022 | DJ & T Services, LLC | Abilene, TX 79601 | Oil & Gas Operator | Aug 2026 |
| 8023 | DJ Exploration, Inc. | San Antonio, TX 78257 | Oil & Gas Operator | Aug 2026 |
| 8024 | DJ Resources Inc | Bowie, TX 76230 | Oil & Gas Operator | Nov 2017 |
| 8025 | DJD Drilling Corporation | Graham, TX 76450 | Oil Operator | Jan 2010 |
| 8026 | DJH Investments, Inc. | Houston, TX 77024 | Oil Operator | Aug 2026 |
| 8027 | DJH Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2026 |
| 8028 | DJM Beasley Well Service | Tuscola, TX 79562 | Oil Operator | Aug 2026 |
| 8029 | DJR Operating, LLC | Farmington, NM 87401 | Oil & Gas Operator | May 2026 |
| 8030 | DJR Well Services Inc | McDonald, OH 44437 | Oil & Gas Operator | Dec 2025 |
| 8031 | DJS Farms Inc. | Waterloo, NY 13165 | Gas Operator | Dec 2025 |
| 8032 | DK Gas Inc | Hawthorn, PA 16230-0228 | Oil & Gas Operator | Dec 2006 |
| 8033 | DK Operating Inc. | Jetmore, KS 67854 | Oil Operator | Feb 2026 |
| 8034 | DKD Production, LLC | Tatum, NM 88267 | Oil Operator | Jun 2026 |
| 8035 | DKD,LLC | Tatum, NM 88267 | Oil & Gas Operator | Oct 2022 |
| 8036 | DKM Offshore Energy Inc. | | Oil & Gas Operator | Dec 1993 |
| 8037 | DKM Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2011 |
| 8038 | DKMR Oil Company, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2017 |
| 8039 | DKT Energy LLC | Edmond, OK 73083-6844 | Oil & Gas Operator | Sep 2014 |
| 8040 | DKW Energy, Inc. | Sherman Oaks, CA 91403 | Oil & Gas Operator | Aug 2026 |
| 8041 | DL Energy, LLC | Saco, MT 59261 | Gas Operator | Apr 2026 |
| 8042 | DL Resources Inc | | Oil & Gas Operator | Dec 2025 |
| 8043 | DLB Energy Corporation | Oklahoma City, OK 73118-1401 | Oil & Gas Operator | Dec 2014 |
| 8044 | DLB Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2026 |
| 8045 | DLJ Investments, LLC | Springboro, OH 45006 | Oil Operator | Dec 2023 |
| 8046 | DLKB Operating LLC | Eufaula, OK 74432 | Gas Operator | Apr 2026 |
| 8047 | DLM Energy | Houston, TX 77058 | Oil & Gas Operator | Sep 1994 |
| 8048 | DLM Oil | | Oil Operator | Nov 2008 |
| 8049 | DLM Ventures | | Oil & Gas Operator | Dec 2004 |
| 8050 | DLM Ventures LLC | | Oil & Gas Operator | Dec 2004 |
| 8051 | DM Backhoe Service | Graham, TX 76450 | Oil & Gas Operator | Aug 2026 |
| 8052 | DM Petroleum LLC | Duncan, OK 73533 | Oil Operator | Mar 2026 |
| 8053 | DMH Petroleum, Inc. | Sterling, KS 67579 | Oil Operator | Apr 2026 |
| 8054 | DMS Investments Inc | Tulsa, OK 74132-2690 | Oil & Gas Operator | Mar 2015 |
| 8055 | DMS Oil Company | Houston, TX 77042 | Oil & Gas Operator | May 2026 |
| 8056 | DMV Pipeline LLC | Lipan, TX 76462 | Oil & Gas Operator | Aug 2026 |
| 8057 | Dna Petroleum Inc. | | Oil Operator | Dec 2004 |
| 8058 | DNB Drilling, Inc. | Wichita, KS 67208 | Oil & Gas Operator | Jan 2001 |
| 8059 | DNL Oil Corp | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2012 |
| 8060 | DNR Oil And Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jun 2026 |
| 8061 | Dobbins Family Residual Trust | Ardmore, OK 73401 | Oil Operator | Jul 2008 |
| 8062 | Dobbs Oil & Gas | | Oil Operator | Dec 2013 |
| 8063 | Dobbs Petroleum Co. | Abilene, TX 79606 | Oil & Gas Operator | Aug 2026 |
| 8064 | Dobrinski, Mark E., A General Partnership | Coldwater, KS 67029 | Oil Operator | Feb 2008 |
| 8065 | Dobson Oil And Gas LLC | Deer Creek, OK 74636 | Oil Operator | Aug 2022 |
| 8066 | Dobson Oil Operators Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2004 |
| 8067 | Doc Oil | Brownwood, TX 76801 | Oil & Gas Operator | Oct 2019 |
| 8068 | Doc Oil Corp. | | Oil Operator | Dec 2006 |
| 8069 | Doc'S Tank Trucks | Jacksboro, TX 76458 | Oil Operator | Jun 2007 |
| 8070 | Docherty Operating, L.L.C. | | Oil Operator | Dec 2024 |
| 8071 | Docking Developm | | Oil & Gas Operator | Dec 1996 |
| 8072 | Docking Development Company, LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Oct 2013 |
| 8073 | Doco Development Corporation | Norman, OK 73072 | Oil & Gas Operator | Apr 2026 |
| 8074 | Dodd Oil & Gas | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 8075 | Dodd, C. C., Oil & Gas | | Oil & Gas Operator | Dec 2021 |
| 8076 | Dodson Prairie Oil & Gas LLC | San Antonio, TX 78205 | Gas Operator | Aug 2026 |
| 8077 | Dodson, Inc. | San Antonio, TX 78232 | Oil & Gas Operator | Oct 1998 |
| 8078 | Dodson, Wayne Consultants, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Jul 2003 |
| 8079 | Doege, Donald | La Vernia, TX 78121 | Oil & Gas Operator | Aug 2026 |
| 8080 | Doege, Harry | La Vernia, TX 78121 | Oil & Gas Operator | Aug 2003 |
| 8081 | Doggy Oil Corp | Decatur, GA 30031 | Oil & Gas Operator | Aug 2026 |
| 8082 | Dogwood Operating Company, Inc. | Houston, TX 77069 | Oil & Gas Operator | Aug 2026 |
| 8083 | Dol Resources Inc | Rowlett, TX 75088 | Oil & Gas Operator | Apr 2026 |
| 8084 | Dolberry Energy Resources Corp. | Dallas, TX 75252 | Oil Operator | Aug 2026 |
| 8085 | Dolch Production, Inc. | San Antonio, TX 78248 | Oil & Gas Operator | Jul 1996 |
| 8086 | Dole Enterprises Inc. | | Oil & Gas Operator | Jun 2026 |
| 8087 | Dolezal George Jr | Littleton, CO 80163 | Oil & Gas Operator | Sep 2006 |
| 8088 | Dolinar, Michael J. | Angola, NY 14006 | Gas Operator | Dec 2025 |
| 8089 | Dolphin Energy LLC | Lake Worth, FL 33467 | Oil & Gas Operator | Mar 2026 |
| 8090 | Dolphin Petroleum | Alice, TX 78333 | Oil & Gas Operator | Jun 2008 |
| 8091 | Dolphin Petroleum, LP | Alice, TX 78333 | Oil & Gas Operator | Aug 2026 |
| 8092 | Domac Oil Company Inc | Perkins, OK 74059-0642 | Oil & Gas Operator | Feb 2006 |
| 8093 | Domar Oil & Gas | | Gas Operator | May 1995 |
| 8094 | Domar Oil & Gas Inc | Liberal, KS 67905 | Oil & Gas Operator | Oct 2000 |
| 8095 | Dome De Sel LLC | | Oil & Gas Operator | Nov 2024 |
| 8096 | Dome Drilling Co | Westlake, OH 44145-1964 | Oil & Gas Operator | Dec 2009 |
| 8097 | Dome Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2016 |
| 8098 | Dome Producing | Cleveland, OH 44114 | Oil & Gas Operator | Dec 1988 |
| 8099 | Domestic Energy Corporation | | Oil Operator | Jan 1988 |
| 8100 | Domestic Oil & Gas Co | Bedford, OH 44146 | Oil & Gas Operator | Dec 1990 |