| 12201 | Habetz Oilfield Saltwater Ser, Inc | | Oil Operator | May 2024 |
| 12202 | Habit Petroleum | | Oil Operator | Dec 2009 |
| 12203 | Habit Petroleum, LLC | Hays, KS 67601 | Oil Operator | Jul 2024 |
| 12204 | Hackberry Production, Inc. | | Oil Operator | Mar 1988 |
| 12205 | Hacker Brothers Oil Company, Inc | Muenster, TX 76252 | Oil & Gas Operator | May 2004 |
| 12206 | Hacker Brothers Well Service,Inc | Muenster, TX 76252 | Oil & Gas Operator | Nov 2024 |
| 12207 | Hacker, Freddie J. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2012 |
| 12208 | Hacker, Jack | Coats, KS 67028 | Oil & Gas Operator | Jun 2024 |
| 12209 | Hackley Okla Inc | | Oil & Gas Operator | Aug 1992 |
| 12210 | Had-A-Call Oil | | Oil Operator | Feb 2017 |
| 12211 | Hadaway Consult And Engineer,LLC | Canadian, TX 79014 | Oil & Gas Operator | Nov 2024 |
| 12212 | Hadaway Consulting And Engineering LLC | Canadian, TX 79014 | Oil & Gas Operator | Jun 2024 |
| 12213 | Hadaway Engineering Inc | Canadian, TX 79014 | Oil & Gas Operator | Jul 2015 |
| 12214 | Hadco LTD | Ardmore, OK 73401-6929 | Oil & Gas Operator | Mar 2015 |
| 12215 | Haddad & Brooks Inc | Washington, PA 15301-0776-0776 | Oil & Gas Operator | Dec 2018 |
| 12216 | Haddad Boynton, LLC | Jonesville, TX 75659 | Oil Operator | Nov 2024 |
| 12217 | Hadden, Pennell & Rohret | Lakewood, CO 80228 | Oil Operator | Nov 1994 |
| 12218 | Haddock, Jack L. | Hays, KS 67601 | Oil Operator | Jul 2024 |
| 12219 | Haddox Johnny C | Okemah, OK 74859-0254 | Oil Operator | Apr 2020 |
| 12220 | Haddox Petroleum Corp | | Gas Operator | Dec 2010 |
| 12221 | Hadley Oil | Nocona, TX 76255 | Oil Operator | Jan 2014 |
| 12222 | Hadley Oil Company, LLC | Nocona, TX 76255 | Oil Operator | Nov 2024 |
| 12223 | Hadley/Jackson Energy LLC | Lake Forest, IL 60045 | Oil & Gas Operator | Aug 2024 |
| 12224 | Hadson Energy Resources Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1994 |
| 12225 | Hadson Petro USA Inc | | Oil & Gas Operator | Nov 2016 |
| 12226 | Hadson Petroleum | | Oil Operator | Sep 1988 |
| 12227 | Hadson Petroleum (USA), Inc. | | Oil & Gas Operator | Dec 1992 |
| 12228 | Hadson Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 12229 | Haessly Hardwood Lumber Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2023 |
| 12230 | Hafer Run Enterprise | Independence, KS 67301 | Oil Operator | Oct 1997 |
| 12231 | Haffaday Oil LLC | | Oil Operator | Jul 2024 |
| 12232 | Haffner Dan | Hoxie, KS 67740 | Oil Operator | Jul 2024 |
| 12233 | Hager Gas Co | Danville, WV 25053-0000 | Gas Operator | Dec 2010 |
| 12234 | Haggard Operating Group/Oil | Atascosa, TX 78002 | Oil & Gas Operator | Nov 2024 |
| 12235 | Haggard, E. A. | Graham, TX 76450 | Oil & Gas Operator | Apr 2001 |
| 12236 | Hagler William N | Farmington, NM 87499-0035 | Oil Operator | Apr 2014 |
| 12237 | Hahn Kahle E | Knox, PA 16232-4311 | Oil & Gas Operator | Dec 2003 |
| 12238 | Haider Operating, LLC | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 12239 | Haigood & Campbell | Archer City, TX 76351 | Oil & Gas Operator | Nov 2024 |
| 12240 | Haigood, Danny | Portland, TX 78374 | Oil & Gas Operator | Mar 2008 |
| 12241 | Hail Petroleum Corporation | Garland, TX 75047-5036 | Oil Operator | Mar 1997 |
| 12242 | Haile Petroleum LTD | Artesia, NM 882110186 | Oil & Gas Operator | Aug 2000 |
| 12243 | Haile, Guy W. | Sterling, KS 67579 | Oil Operator | Jul 2024 |
| 12244 | Hailey Energy Corporation | Wesson, MS 39191 | Gas Operator | May 2013 |
| 12245 | Haimo Oil & Gas LLC | Houston, TX 77042 | Oil & Gas Operator | Aug 2020 |
| 12246 | Haines Oil Company | Sulphur, OK 73086 | Oil & Gas Operator | Oct 2009 |
| 12247 | Hair, Roger D. | Post, TX 79356 | Oil & Gas Operator | Nov 2024 |
| 12248 | Haischer James W Dba Haischer James W And Assoc | | Oil & Gas Operator | Dec 2001 |
| 12249 | Hal J Rasmussen Oper Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2014 |
| 12250 | Hal Oil & Gas Co., Inc. | | Oil & Gas Operator | Apr 1993 |
| 12251 | Haland Operating Company, LLC | | Oil & Gas Operator | Jul 2018 |
| 12252 | Halbouty, Michel T. | Houston, TX 77056 | Oil & Gas Operator | Aug 1997 |
| 12253 | Halbouty-Reserve | | Oil & Gas Operator | Sep 1987 |
| 12254 | Halbouty-Reserve-Pel-Tex | | Oil & Gas Operator | May 1985 |
| 12255 | Halcon Holdings, Inc. | Ada, OK 74820 | Oil & Gas Operator | Nov 2018 |
| 12256 | Halcon Louisiana Operating, LP | | Oil & Gas Operator | Sep 2017 |
| 12257 | Halcon Operating Co., Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |
| 12258 | Halcon Opr Co Inc | Houston, TX 77002-5005 | Oil & Gas Operator | Jul 2017 |
| 12259 | Halcon Resources Operating, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2013 |
| 12260 | Halcyon Natural Gas LLC | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Jul 2024 |
| 12261 | Halde Oil Inc | | Oil & Gas Operator | Sep 2024 |
| 12262 | Hale John H | Tulsa, OK 74107 | Oil & Gas Operator | Mar 2000 |
| 12263 | Hale Oil | | Oil & Gas Operator | Jun 2024 |
| 12264 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 12265 | Hale Oil Co. | | Oil & Gas Operator | Jul 2024 |
| 12266 | Hale, L.D. | Wichita, KS 67230 | Oil Operator | Oct 2019 |
| 12267 | Hale, Mike E. | Georgetown, TX 78628 | Oil & Gas Operator | Dec 2003 |
| 12268 | Halek Energy L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Jan 2014 |
| 12269 | Halex Inc | | Oil & Gas Operator | Nov 1988 |
| 12270 | Halex Oil Corporation | Houston, TX 77057 | Oil & Gas Operator | Nov 2024 |
| 12271 | Haley/Hughes Operations | | Oil Operator | Apr 2001 |
| 12272 | Halfway Oil Inc | Tahlequah, OK 74464-5448 | Oil & Gas Operator | Aug 2013 |
| 12273 | Halgas Inc | Tulsa, OK 74101-3012 | Oil & Gas Operator | May 2013 |
| 12274 | Hall & Horning Serv Inc | Atwater, OH 44201-9375-9375 | Oil & Gas Operator | Dec 2009 |
| 12275 | Hall And Kelley Oil & Gas | | Oil Operator | Dec 1995 |
| 12276 | Hall Drilling LLC (Oil & Gas) | Ellenboro, WV 26346 | Gas Operator | Sep 2014 |
| 12277 | Hall Drilling, LLC | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2021 |
| 12278 | Hall Edward L | Ada, OK 74820-3321 | Oil & Gas Operator | Sep 2024 |
| 12279 | Hall Energy Co. | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2016 |
| 12280 | Hall Energy Company LLC | Oklahoma City, OK 73120-5020 | Oil & Gas Operator | Jul 2022 |
| 12281 | Hall Energy Inc | Magnetic Spring, OH 43036-218-218 | Oil & Gas Operator | Dec 2017 |
| 12282 | Hall Engineering, Inc. | | Oil & Gas Operator | Jan 2007 |
| 12283 | Hall Exploration, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2024 |
| 12284 | Hall Farm Leasing, LLC | | Oil Operator | Dec 2012 |
| 12285 | Hall IVan & Assoc Inc | Berea, OH 44017 | Oil & Gas Operator | Dec 1997 |
| 12286 | Hall Oil & Gas | Coahoma, TX 79511 | Oil & Gas Operator | Nov 2024 |
| 12287 | Hall Oil And Gas LLC | Midland, TX 79707 | Oil & Gas Operator | Nov 2024 |
| 12288 | Hall Oil Company | Humboldt, KS 66748 | Oil Operator | Nov 2009 |
| 12289 | Hall Phoenix Energy, LLC | Frisco, TX 75034 | Oil & Gas Operator | Jun 2022 |
| 12290 | Hall Resources Corporation | Independence, MO 64057-2158 | Oil & Gas Operator | Jun 2016 |
| 12291 | Hall Richard A | | Oil Operator | Sep 1993 |
| 12292 | Hall Thomas E | Marietta, OH 45750 | Oil & Gas Operator | Dec 2021 |
| 12293 | Hall'S Well DRLG & Pump Service, Inc | Avon Park, FL 33825 | Oil Operator | Dec 2022 |
| 12294 | Hall, Charles C | | Oil Operator | Sep 2017 |
| 12295 | Hall, D. Corporation | La Grange, TX 78945 | Oil & Gas Operator | Mar 2013 |
| 12296 | Hall, E. G., Oil Co. | Mexia, TX 76667 | Oil & Gas Operator | Nov 2024 |
| 12297 | Hall, J.J. Operating Co., Inc. | Lakewood, CO 80215 | Oil Operator | Jan 2005 |
| 12298 | Hall, James H ( Trust) | | Gas Operator | Dec 2007 |
| 12299 | Hall, Michael Wayne | Toronto, KS 66777 | Oil Operator | Dec 2009 |
| 12300 | Hall-Hargraves, LLC | Oil City, LA 71061 | Oil & Gas Operator | Jun 2024 |