| 14101 | Investors Drilli | | Gas Operator | Jan 1993 |
| 14102 | Investors Oil, Inc. | | Oil Operator | Mar 1985 |
| 14103 | Investors Resources Corp | Edmond, OK 73034 | Oil & Gas Operator | Jan 2026 |
| 14104 | Invitation Energy, Incorporated | | Oil & Gas Operator | Dec 2021 |
| 14105 | Invito Operating, LLC | McKinney, TX 75070 | Oil & Gas Operator | Jan 2026 |
| 14106 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2026 |
| 14107 | Iochem Corporation | Oklahoma City, OK 73118-7483 | Oil & Gas Operator | Dec 2025 |
| 14108 | Ioe Acres V LLC | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 14109 | Iowa Production Company, Inc. | | Oil & Gas Operator | Jan 1992 |
| 14110 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 14111 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Mar 2026 |
| 14112 | Ipas Oil Company LLC | Pratt, KS 67124 | Oil Operator | Dec 2019 |
| 14113 | Ipr Energy Partners, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Aug 2014 |
| 14114 | Ipr Energy Partners, LLC | Bowie, TX 76230 | Oil & Gas Operator | Mar 2026 |
| 14115 | Ipr USA Corp. | Irving, TX 75039 | Oil & Gas Operator | Jun 2009 |
| 14116 | Ipt Oil Company | Evansville, IN 47706 | Oil & Gas Operator | Mar 2026 |
| 14117 | Ira Oil & Gas LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2008 |
| 14118 | Ira Testers | Ira, TX 79527 | Oil & Gas Operator | Mar 2024 |
| 14119 | Ira Testers, LLC | Ira, TX 79527 | Oil Operator | Mar 2026 |
| 14120 | Irani Engineering | | Gas Operator | Dec 1995 |
| 14121 | Irene L. Heary Irrevocable Trust | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 14122 | Irex Corporation | Englewood, CO 80111 | Oil & Gas Operator | May 2000 |
| 14123 | Irion Corporation, The | San Angelo, TX 76906 | Oil & Gas Operator | Jun 2021 |
| 14124 | Irish City Oil & Gas, Inc. | Wimberley, TX 78676 | Oil & Gas Operator | Mar 2026 |
| 14125 | Irish Oil & Gas Co. | Houston, TX 77242 | Oil & Gas Operator | Aug 2003 |
| 14126 | Iron Bell Operating, LLC | Lubbock, TX 79423 | Oil & Gas Operator | Mar 2026 |
| 14127 | Iron City Wells LLC | Saxonburg, PA 16056-8802 | Gas Operator | Dec 2025 |
| 14128 | Iron Creek Properties Inc | Casper, WY 82604 | Oil & Gas Operator | Sep 2025 |
| 14129 | Iron Hawk Energy Group Joint Venture | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2025 |
| 14130 | Iron Horse Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Mar 2026 |
| 14131 | Iron Oil Operating, LLC | | Oil & Gas Operator | Jan 2026 |
| 14132 | Iron Orchard Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Mar 2026 |
| 14133 | Iron Pennsylvania Land LLC | Waynesburg, PA 15370 | Gas Operator | Dec 2025 |
| 14134 | Iron Post Oil & Gas Co Inc | Bristow, OK 74010-4120 | Oil & Gas Operator | Jan 2026 |
| 14135 | Iron Ridge Operating, LLC | Austin, TX 78738 | Oil & Gas Operator | Mar 2026 |
| 14136 | Iron Sights Operating, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | Jul 2022 |
| 14137 | Iron Springs Operating Co. Inc | | Oil & Gas Operator | Jan 2025 |
| 14138 | Iron Star Energy LLC | Houston, TX 77037-1142 | Oil & Gas Operator | Dec 2025 |
| 14139 | Ironbloom Operating, LLC | La Grange, TX 78945 | Oil & Gas Operator | Mar 2026 |
| 14140 | Ironhorse Operations, LLC | Kilgore, TX 75663 | Oil Operator | Mar 2026 |
| 14141 | Ironroc Energy | The Woodlands, TX 77381 | Oil & Gas Operator | Mar 2026 |
| 14142 | Ironwood Exploration Inc | | Oil & Gas Operator | Mar 1995 |
| 14143 | Ironwood Oil & Gas LLC | Houston, TX 77067 | Oil & Gas Operator | Jun 2014 |
| 14144 | Iroquois Ave LLC | Edinboro, PA 16412 | Gas Operator | Dec 2025 |
| 14145 | Iroquois Central School District | Elma, NY 14059 | Gas Operator | Dec 2024 |
| 14146 | Irvin Drilling Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1990 |
| 14147 | Irvin Operations, Inc. | | Oil Operator | Aug 1996 |
| 14148 | Irvin Petroleum | Stinnett, TX 79083 | Oil & Gas Operator | Sep 1996 |
| 14149 | Irvin Petroleum Inc. | Stinnett, TX 79083 | Oil & Gas Operator | Apr 2016 |
| 14150 | Irwin H. Parnes | | Oil Operator | Jun 1982 |
| 14151 | Irwin-Crum | Nocona, TX 76255 | Oil Operator | Mar 2026 |
| 14152 | Is Energy, LLC | Seminole, TX 79360 | Oil Operator | Mar 2026 |
| 14153 | Isaacs Fairy J | Konawa, OK 74849-0134 | Oil Operator | Sep 2020 |
| 14154 | Isaacs Scott J Jr | Butler, PA 16002-0059 | Gas Operator | Nov 2025 |
| 14155 | Isaacson Energy Resources, LLC | Austin, TX 78741 | Oil & Gas Operator | Mar 2026 |
| 14156 | Isaia, Deborah | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 14157 | Isbell, Bob G. Operating | Cisco, TX 76437 | Oil & Gas Operator | Mar 2015 |
| 14158 | Isbrandtsen Oil And Gas Co | | Oil Operator | Mar 2002 |
| 14159 | Iseman William R | Ford City, PA 16226-1488 | Gas Operator | Dec 2025 |
| 14160 | Isern, James R. | Wichita, KS 67277 | Oil Operator | Apr 1996 |
| 14161 | Isern-Schultz Oi | | Oil & Gas Operator | Jul 1988 |
| 14162 | Isis Operating Inc | Russell, KS 67665 | Oil Operator | Dec 2019 |
| 14163 | Iskandia Energy Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2026 |
| 14164 | Island Energy Partners LLC | | Gas Operator | Jan 2018 |
| 14165 | Island Exploration | Houston, TX 77058 | Oil & Gas Operator | Mar 2026 |
| 14166 | Island Petroleum, Inc. | | Gas Operator | Mar 1998 |
| 14167 | Isom Energy, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | May 2018 |
| 14168 | Ison, Samuel M | Isonville, KY 41149 | Oil Operator | Dec 2024 |
| 14169 | It'LL Do Oil Company | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 14170 | Italian-American Oil Co., Inc. | Tomball, TX 77377 | Oil & Gas Operator | Mar 2026 |
| 14171 | Itawamba Industrial Gas Co | | Gas Operator | Dec 1999 |
| 14172 | Itech Oil Company | Cypress, TX 77429 | Oil & Gas Operator | Aug 2007 |
| 14173 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 14174 | Itx Corporation | Dallas, TX 75225 | Oil & Gas Operator | Mar 2026 |
| 14175 | Itx Pipeline Company, LLC | Dallas, TX 75225 | Oil & Gas Operator | Mar 2026 |
| 14176 | Iuka-Carmi Development LLC | Pratt, KS 67124 | Oil & Gas Operator | Sep 2025 |
| 14177 | Iv L.C. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2026 |
| 14178 | Iva Oil | Cisco, TX 76437 | Oil & Gas Operator | Mar 2026 |
| 14179 | Ivan Holt Well Servicing Inc | Edmond, OK 73003 | Oil Operator | Aug 1999 |
| 14180 | Ivansons Oil Production | | Oil Operator | Dec 2024 |
| 14181 | Ivett, Donald L. & Jeanette V. | Forestville, NY 14062 | Gas Operator | Dec 2024 |
| 14182 | Ivory Energy, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2026 |
| 14183 | Iwr Operating, LLC | Dallas, TX 75248 | Oil Operator | Mar 2026 |
| 14184 | Iwt Energy Partners LLC | Denver, CO 80233 | Oil Operator | Mar 2026 |
| 14185 | J & A Oil Company | Odessa, TX 79764 | Oil & Gas Operator | Mar 2026 |
| 14186 | J & A Oil Properties | Olney, TX 76374 | Oil & Gas Operator | Aug 2018 |
| 14187 | J & A Operating | Bowie, TX 76230 | Oil & Gas Operator | Mar 2026 |
| 14188 | J & B Service Co. | | Oil Operator | Nov 2024 |
| 14189 | J & C Oil | New Matamoras, OH 45767-6035 | Oil & Gas Operator | Dec 2024 |
| 14190 | J & D Investment | | Oil Operator | Oct 1993 |
| 14191 | J & D Investment Co. | | Oil & Gas Operator | Feb 2025 |
| 14192 | J & D Services | Graham, TX 76450 | Oil Operator | Feb 2017 |
| 14193 | J & E Energy Company | Oklahoma City, OK 73120-1108 | Oil & Gas Operator | Mar 2015 |
| 14194 | J & F Oil & Gas Company | Yale, OK 74085-0311 | Oil & Gas Operator | Feb 2004 |
| 14195 | J & F Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Mar 2026 |
| 14196 | J & F Producing Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 14197 | J & G Enterprise LTD., Co. | Artesia, NM 88211 | Oil & Gas Operator | Nov 1997 |
| 14198 | J & G Operating | Shelby, MT 59474 | Oil & Gas Operator | Aug 2000 |
| 14199 | J & H Oil Compan | | Oil Operator | Jul 1995 |
| 14200 | J & H Oil Company, A General Partnership | Lincolnville, KS 66858 | Oil Operator | Jan 2002 |