| 9201 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 9202 | El Paso Production Gom, Inc. | | Oil & Gas Operator | Nov 2005 |
| 9203 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Apr 2025 |
| 9204 | El Ran, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Apr 2025 |
| 9205 | El Reno Energy, LLC | Granbury, TX 76048 | Oil & Gas Operator | Apr 2025 |
| 9206 | El Santo Petroleum Corporation | | Oil & Gas Operator | Feb 1993 |
| 9207 | El Segundo Oil LLC | | Oil Operator | Dec 2024 |
| 9208 | El Toro Oil Co. & Flagg Resc. | | Oil & Gas Operator | May 1993 |
| 9209 | El Toro Production Co., Inc. | | Oil & Gas Operator | Jan 2016 |
| 9210 | El Toro Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2025 |
| 9211 | El Tres Exploration | Houston, TX 77098 | Oil & Gas Operator | Mar 2008 |
| 9212 | El Tres Petr. Corp. | | Oil & Gas Operator | Jan 1984 |
| 9213 | El-Kan Exploration | Garfield, KS 67529 | Oil Operator | Jul 1997 |
| 9214 | El-Oil, LTD. | | Oil & Gas Operator | Nov 2024 |
| 9215 | Elad Petroleum Corporation | | Oil Operator | Jun 2005 |
| 9216 | Elahs Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 9217 | Elam, Jack G. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 9218 | Elam, Jack G., Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 9219 | Elan Energy Inc | Toledo, OH 43604-1207-1207 | Oil & Gas Operator | Dec 1990 |
| 9220 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Feb 2025 |
| 9221 | Elb Enterprise LLC | | Oil Operator | Dec 2024 |
| 9222 | Elba Oil Company LLC | Macksburg, OH 45746 | Oil Operator | Dec 2023 |
| 9223 | Elco Oil & Gas | San Angelo, TX 76902 | Oil & Gas Operator | Dec 2014 |
| 9224 | Elco Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2025 |
| 9225 | Elco Resources LLC | Owasso, OK 74055-7575 | Oil & Gas Operator | Feb 2025 |
| 9226 | Elder & Vaughn Inc | Oklahoma City, OK 73154-0938 | Oil & Gas Operator | Mar 2008 |
| 9227 | Elder Oil & Gas Co | Parker, PA 16049-6426 | Oil & Gas Operator | Dec 2024 |
| 9228 | Elder Oil Co. | West Union, WV 26456 | Oil & Gas Operator | Dec 2021 |
| 9229 | Eldon Oil Co. | Three Rivers, TX 78071 | Oil & Gas Operator | Apr 2025 |
| 9230 | Eldon Radke | | Oil Operator | May 2001 |
| 9231 | Eldorado Gas Inc. | | Oil & Gas Operator | May 1986 |
| 9232 | Eldorado Oil And Gas, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Nov 1995 |
| 9233 | Eldorado Operating Co. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2004 |
| 9234 | Eldred Prod And Consulting, LLC | Nocona, TX 76255 | Oil Operator | Apr 2025 |
| 9235 | Elec Materials Co | North East, PA 16428-1539 | Gas Operator | Dec 1994 |
| 9236 | Electragas, Inc. | Houston, TX 77064 | Oil Operator | Apr 2025 |
| 9237 | Elek Aaron III | | Oil Operator | Jul 2005 |
| 9238 | Elek Aaron III Estate | | Oil Operator | Feb 2015 |
| 9239 | Element Petro Operating II, LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2016 |
| 9240 | Element Petroleum Op III, LLC | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 9241 | Element Petroleum Operating IV, | Midland, TX 79710 | Oil Operator | Apr 2025 |
| 9242 | Element Petroleum Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2015 |
| 9243 | Elendil Resources LLC | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 9244 | Eleon Operators, LLC | Katy, TX 77494 | Oil & Gas Operator | Apr 2025 |
| 9245 | Elephant Exploration Inc. | Hartville, OH 44632 | Oil & Gas Operator | Dec 2023 |
| 9246 | Elephant Oil & Gas, LLC | Dallas, TX 75204 | Oil & Gas Operator | Nov 2015 |
| 9247 | Elephant Operating LLC | Dallas, TX 75204 | Oil & Gas Operator | Mar 2025 |
| 9248 | Eleuterius Company | | Oil Operator | Jan 1983 |
| 9249 | Elevate Energy LTD | Aurora, CO 80016 | Oil & Gas Operator | Dec 2024 |
| 9250 | Elevation Resources LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 9251 | Eleven Eleven Investments, LLC | Hays, KS 67601 | Oil Operator | Oct 2024 |
| 9252 | Eleven K Oil & Gas LLC | Cushing, OK 74023 | Oil Operator | Feb 2025 |
| 9253 | Elf Aquitaine Inc | Houston, TX 77002 | Oil & Gas Operator | May 1991 |
| 9254 | Elf Aquitaine Operating, Inc. | | Oil & Gas Operator | Jan 1992 |
| 9255 | Elfco, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Jun 1996 |
| 9256 | Elgie Company, Inc. | | Oil & Gas Operator | Aug 1993 |
| 9257 | Elgin Construction Company Inc | Elgin, OK 73538-0370 | Oil Operator | Oct 2024 |
| 9258 | Elgin Energy Corp. | | Oil Operator | May 1995 |
| 9259 | Elh Energy LLC | Lubbock, TX 79464 | Oil & Gas Operator | Feb 2025 |
| 9260 | Eli Rebich | | Oil & Gas Operator | Dec 1986 |
| 9261 | Elint Operating Inc | Oklahoma City, OK 73106 | Oil & Gas Operator | May 1995 |
| 9262 | Elison Oil & Gas, Inc. | Montgomery, TX 77356 | Oil & Gas Operator | Oct 1999 |
| 9263 | Elite Group LLC | | Oil & Gas Operator | Nov 2024 |
| 9264 | Elite Resources Inc | Cleveland, OK 74020 | Oil & Gas Operator | Feb 2025 |
| 9265 | Elite Tank Trucks, Inc | | Oil & Gas Operator | Feb 2025 |
| 9266 | Elizabeth Oil Company | | Oil Operator | Oct 1999 |
| 9267 | Elk City Oil Field Service | Elk City, KS 67344 | Oil Operator | Oct 1996 |
| 9268 | Elk Energy Corporation | Denver, CO 80218 | Oil & Gas Operator | Mar 2008 |
| 9269 | Elk Energy Holdings LLC | Wichita, KS 67226 | Oil & Gas Operator | Dec 2024 |
| 9270 | Elk Exploration Inc | | Oil & Gas Operator | Jul 2001 |
| 9271 | Elk Meadows Resources LLC | Houston, TX 77037 | Oil & Gas Operator | Jan 2021 |
| 9272 | Elk Oil Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2018 |
| 9273 | Elk Oil Company | Overland Park, KS 66212 | Oil & Gas Operator | Sep 2007 |
| 9274 | Elk Oil Enterprises, LLC | Wetmore, KS 66550 | Oil Operator | Dec 2009 |
| 9275 | Elk Operating Services, LLC | Denver, CO 80203 | Oil & Gas Operator | Feb 2025 |
| 9276 | Elk Petroleum Inc | Casper, WY 82601 | Oil & Gas Operator | Aug 2014 |
| 9277 | Elk Production LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2011 |
| 9278 | Elk Production Uintah LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 9279 | Elk Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2011 |
| 9280 | Elk River Resources, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Oct 2023 |
| 9281 | Elk San Juan, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2014 |
| 9282 | Elk Slough Pipeline Co. | | Oil & Gas Operator | Dec 1999 |
| 9283 | Elkhead Gas & Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 9284 | Elkhorn Exploration Co | Willis, TX 77378-8827 | Oil & Gas Operator | Jan 2025 |
| 9285 | Elkhorn Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 1995 |
| 9286 | Elkhound Resources Inc | Wellsville, KS 66092 | Oil Operator | Aug 1998 |
| 9287 | Ellard I W | Bixby, OK 74008-0220 | Oil & Gas Operator | Jan 2007 |
| 9288 | Ellard Oil | Loving, TX 76460 | Oil & Gas Operator | May 2022 |
| 9289 | Ellard, Herman | Graham, TX 76450 | Oil & Gas Operator | Feb 2005 |
| 9290 | Ellbogen John P LTD | Casper, WY 82602 | Oil & Gas Operator | Mar 2025 |
| 9291 | Ellen P Sharp LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 9292 | Ellington Energy, Inc. | Cherry Creek, NY 14723 | Gas Operator | Dec 2023 |
| 9293 | Ellinwood Oil Reclaiming Inc | | Oil Operator | Oct 2009 |
| 9294 | Ellinwood Tank Service, Inc. | Chase, KS 67524 | Oil Operator | Jul 2022 |
| 9295 | Elliott A Riggs | Farmington, NM 87499 | Gas Operator | Oct 2012 |
| 9296 | Elliott Co Inc | Jeannette, PA 15644-1474 | Gas Operator | Dec 2022 |
| 9297 | Elliott Inc | Roswell, NM 88201 | Oil & Gas Operator | Apr 1962 |
| 9298 | Elliott Land & Cattle Co., LLC | Waverly, WV 26184 | Gas Operator | Dec 2021 |
| 9299 | Elliott Oil & Gas Company | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2006 |
| 9300 | Elliott Oil & Gas Operating Co. | Magnolia, TX 77354 | Oil & Gas Operator | Apr 2025 |