| 14201 | Ironroc Energy | The Woodlands, TX 77381 | Oil & Gas Operator | May 2025 |
| 14202 | Ironwood Exploration Inc | | Oil & Gas Operator | Mar 1995 |
| 14203 | Ironwood Oil & Gas LLC | Houston, TX 77067 | Oil & Gas Operator | Jun 2014 |
| 14204 | Iroquois Ave LLC | Edinboro, PA 16412 | Gas Operator | Dec 2020 |
| 14205 | Iroquois Central School District | Elma, NY 14059 | Gas Operator | Dec 2023 |
| 14206 | Irvin Drilling Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1990 |
| 14207 | Irvin Operations, Inc. | | Oil Operator | Aug 1996 |
| 14208 | Irvin Petroleum | Stinnett, TX 79083 | Oil & Gas Operator | Sep 1996 |
| 14209 | Irvin Petroleum Inc. | Stinnett, TX 79083 | Oil & Gas Operator | Apr 2016 |
| 14210 | Irwin H. Parnes | | Oil Operator | Jun 1982 |
| 14211 | Irwin-Crum | Nocona, TX 76255 | Oil Operator | May 2025 |
| 14212 | Isaacs Fairy J | Konawa, OK 74849-0134 | Oil Operator | Sep 2020 |
| 14213 | Isaacs Scott J Jr | Butler, PA 16002-0059 | Gas Operator | Mar 2025 |
| 14214 | Isaacson Energy Resources, LLC | Austin, TX 78741 | Oil & Gas Operator | May 2025 |
| 14215 | Isaia, Deborah | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 14216 | Isbell, Bob G. Operating | Cisco, TX 76437 | Oil & Gas Operator | Mar 2015 |
| 14217 | Isbrandtsen Oil And Gas Co | | Oil Operator | Mar 2002 |
| 14218 | Iseman William R | Ford City, PA 16226-1488 | Gas Operator | Dec 2024 |
| 14219 | Isern, James R. | Wichita, KS 67277 | Oil Operator | Apr 1996 |
| 14220 | Isern-Schultz Oi | | Oil & Gas Operator | Jul 1988 |
| 14221 | Isis Operating Inc | Russell, KS 67665 | Oil Operator | Jan 2025 |
| 14222 | Iskandia Energy Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2025 |
| 14223 | Island Energy Partners LLC | | Gas Operator | Jan 2018 |
| 14224 | Island Exploration | Houston, TX 77058 | Oil & Gas Operator | May 2025 |
| 14225 | Island Petroleum, Inc. | | Gas Operator | Mar 1998 |
| 14226 | Isom Energy, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | May 2018 |
| 14227 | Ison, Samuel M | Isonville, KY 41149 | Oil Operator | Dec 2023 |
| 14228 | It'LL Do Oil Company | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 14229 | Italian-American Oil Co., Inc. | Tomball, TX 77377 | Oil & Gas Operator | May 2025 |
| 14230 | Itawamba Industrial Gas Co | | Gas Operator | Dec 1999 |
| 14231 | Itech Oil Company | Cypress, TX 77429 | Oil & Gas Operator | Aug 2007 |
| 14232 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 14233 | Itx Corporation | Dallas, TX 75225 | Oil & Gas Operator | May 2025 |
| 14234 | Itx Pipeline Company, LLC | Dallas, TX 75225 | Oil & Gas Operator | May 2025 |
| 14235 | Iuka-Carmi Development LLC | Pratt, KS 67124 | Oil & Gas Operator | Jan 2025 |
| 14236 | Iv L.C. | San Antonio, TX 78209 | Oil & Gas Operator | May 2025 |
| 14237 | Iva Oil | Cisco, TX 76437 | Oil & Gas Operator | May 2025 |
| 14238 | Ivan Holt Well Servicing Inc | Edmond, OK 73003 | Oil Operator | Aug 1999 |
| 14239 | Ivansons Oil Production | | Oil Operator | Dec 2024 |
| 14240 | Ivett, Donald L. & Jeanette V. | Forestville, NY 14062 | Gas Operator | Dec 2023 |
| 14241 | Ivory Energy, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 14242 | Iwr Operating, LLC | Dallas, TX 75248 | Oil Operator | May 2025 |
| 14243 | Iwt Energy Partners LLC | Austin, TX 78731 | Oil Operator | May 2025 |
| 14244 | J & A Oil Company | Odessa, TX 79764 | Oil & Gas Operator | May 2025 |
| 14245 | J & A Oil Properties | Olney, TX 76374 | Oil & Gas Operator | Aug 2018 |
| 14246 | J & A Operating | Bowie, TX 76230 | Oil & Gas Operator | May 2025 |
| 14247 | J & B Service Co. | | Oil Operator | Nov 2024 |
| 14248 | J & C Oil | New Matamoras, OH 45767-6035-6035 | Oil & Gas Operator | Dec 2024 |
| 14249 | J & D Investment | | Oil Operator | Oct 1993 |
| 14250 | J & D Investment Co. | | Oil & Gas Operator | Dec 2024 |
| 14251 | J & D Services | Graham, TX 76450 | Oil Operator | Feb 2017 |
| 14252 | J & E Energy Company | Oklahoma City, OK 73120-1108 | Oil & Gas Operator | Mar 2015 |
| 14253 | J & F Oil & Gas Company | Yale, OK 74085-0311 | Oil & Gas Operator | Feb 2004 |
| 14254 | J & F Oil Co. | Olney, TX 76374 | Oil & Gas Operator | May 2025 |
| 14255 | J & F Producing Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 14256 | J & G Enterprise LTD., Co. | Artesia, NM 88211 | Oil & Gas Operator | Nov 1997 |
| 14257 | J & G Operating | Shelby, MT 59474 | Oil & Gas Operator | Aug 2000 |
| 14258 | J & H Oil Compan | | Oil Operator | Jul 1995 |
| 14259 | J & H Oil Company, A General Partnership | Lincolnville, KS 66858 | Oil Operator | Jan 2002 |
| 14260 | J & J Contract Pumping LLC | Wakeeney, KS 67672 | Oil Operator | Dec 2019 |
| 14261 | J & J Energy Corporation | Chloe, WV 25235 | Oil & Gas Operator | Dec 2021 |
| 14262 | J & J Energy Service LLC | Bokoshe, OK 74930 | Gas Operator | Feb 2025 |
| 14263 | J & J Enterprises Inc | Indiana, PA 15701-1473 | Gas Operator | Dec 1985 |
| 14264 | J & J Investments, LLC | Loco Hills, NM 88255 | Oil & Gas Operator | Mar 2025 |
| 14265 | J & J Jackson Oil & Gas Inc | Centerview, MO 64019 | Oil Operator | Feb 2025 |
| 14266 | J & J Oil Company | Luling, TX 78648 | Oil & Gas Operator | Mar 2015 |
| 14267 | J & J Oil Company LLC | Lubbock, TX 79424 | Oil Operator | May 2025 |
| 14268 | J & J Oil Venture | Jacksonville, TX 75766 | Oil & Gas Operator | Aug 1996 |
| 14269 | J & J Oil, A General Partnership | Mound City, KS 66056 | Oil Operator | Dec 2019 |
| 14270 | J & J Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2012 |
| 14271 | J & J Onshore Production, Inc. | | Oil & Gas Operator | Feb 2016 |
| 14272 | J & J Operating | Graford, TX 76449 | Oil & Gas Operator | May 2025 |
| 14273 | J & J Production Company LLC | Okemah, OK 74859 | Oil & Gas Operator | Mar 2025 |
| 14274 | J & J Production LLC | Worland, WY 82401 | Oil Operator | Jan 2025 |
| 14275 | J & J Service Inc | Lovington, NM 88260 | Oil & Gas Operator | Mar 2025 |
| 14276 | J & J Services Company | San Angelo, TX 76904 | Oil & Gas Operator | May 2025 |
| 14277 | J & J Tank Truck Services LLC | Peyton, CO 80831 | Oil Operator | Oct 2024 |
| 14278 | J & J Trading | Abilene, TX 79608 | Oil & Gas Operator | Dec 2004 |
| 14279 | J & J Whiteside Inc. | Comanche, TX 76442 | Oil & Gas Operator | May 2025 |
| 14280 | J & K Operating Co LLC | Delaware, OK 74027 | Oil & Gas Operator | Feb 2024 |
| 14281 | J & K Operating Company Inc. | | Oil & Gas Operator | Mar 2025 |
| 14282 | J & K Production LLC | Konawa, OK 74849 | Oil Operator | Feb 2025 |
| 14283 | J & L Allen Inc | Sugar Grove, PA 16350-5606 | Oil & Gas Operator | Dec 2020 |
| 14284 | J & L Oil Company | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 14285 | J & L Partners | Dallas, TX 75370 | Oil & Gas Operator | Dec 2005 |
| 14286 | J & M Co Inc | Abilene, TX 79601 | Oil & Gas Operator | Jan 2016 |
| 14287 | J & M Oil | | Oil Operator | Apr 1994 |
| 14288 | J & M Oil Co | Overland PK, KS 66209 | Oil & Gas Operator | Jan 2025 |
| 14289 | J & M Oil Compan | | Oil Operator | Oct 1993 |
| 14290 | J & M Operating Company | Pond Creek, OK 73766 | Oil Operator | Oct 2015 |
| 14291 | J & M Operators | | Oil & Gas Operator | Dec 1997 |
| 14292 | J & M Production | Luling, TX 78648 | Oil & Gas Operator | Nov 2019 |
| 14293 | J & M SWD, LLC | Stamford, TX 79553 | Oil Operator | May 2025 |
| 14294 | J & M Water Serv | | Oil Operator | Sep 1992 |
| 14295 | J & M Water Service, Inc. | Pratt, KS 67124 | Oil Operator | Feb 2000 |
| 14296 | J & M Well Service & Trucking Inc | Bristow, OK 74010-2399 | Oil & Gas Operator | Feb 2025 |
| 14297 | J & P Oil Compan | | Oil Operator | Jul 1991 |
| 14298 | J & P Production | Holdenville, OK 74848-9485 | Oil Operator | Mar 2015 |
| 14299 | J & R Enterprises | Wetumka, OK 74883-0068 | Oil & Gas Operator | Sep 2000 |
| 14300 | J & R Producing Co. | Plano, TX 75024 | Oil & Gas Operator | Dec 2012 |