| 3301 | Eclipse Oil & Gas, Inc. | Midland, TX 79703 | Oil & Gas Operator | Nov 2024 |
| 3302 | Eclipse Petroleum Corporation | La Grange, TX 78945 | Oil & Gas Operator | Aug 2003 |
| 3303 | Eclipse Services, Inc. * | La Grange, TX 78945 | Oil & Gas Operator | Jul 2003 |
| 3304 | Ecoserv Environmental SVCS, LLC | Abbeville, LA 70510 | Oil Operator | Nov 2024 |
| 3305 | Edco Energy, Inc. | Austin, TX 78738 | Oil & Gas Operator | May 2003 |
| 3306 | Edco Petroleum, Inc. | Dallas, TX 75202 | Oil & Gas Operator | Mar 2005 |
| 3307 | Eddie'S Royalties, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Nov 2024 |
| 3308 | Eddleman, M. W. | Nichols Hill, OK 73116 | Oil & Gas Operator | Nov 2000 |
| 3309 | Edf Trading Resources, LLC | Austin, TX 78746 | Oil & Gas Operator | Jul 2015 |
| 3310 | Edgar, Verlon | Belle Chasse, LA 70037 | Oil & Gas Operator | Feb 1998 |
| 3311 | Edge Barnett Operating Comp LLC | Fort Worth, TX 76107 | Gas Operator | Nov 2013 |
| 3312 | Edge Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2006 |
| 3313 | Edge Oil & Gas Properties | Archer City, TX 76351 | Oil & Gas Operator | Nov 2024 |
| 3314 | Edge Oil And Gas, LLC | Abilene, TX 79602 | Oil Operator | Nov 2024 |
| 3315 | Edge Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 1999 |
| 3316 | Edge Petroleum Oper. Co., Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
| 3317 | Edge Resources Operating, L.L.C. | Fort Worth, TX 76107 | Gas Operator | Jan 2020 |
| 3318 | Edge, Fred Well Service Co. | Archer City, TX 76351 | Oil & Gas Operator | May 2024 |
| 3319 | Edinburgh Energy Partners, LLC | Midland, TX 79707 | Oil & Gas Operator | Nov 2024 |
| 3320 | Edinger Engineering, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2024 |
| 3321 | Edinger Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2007 |
| 3322 | Edington Oil Company | Albany, TX 76430 | Oil & Gas Operator | Aug 2006 |
| 3323 | Edisto Resources Corp | Houston, TX 77057 | Oil & Gas Operator | Oct 1999 |
| 3324 | Edmar Company, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Feb 2020 |
| 3325 | Edmonds Management Company | Richardson, TX 75081 | Oil & Gas Operator | Mar 2015 |
| 3326 | Edmonds, Karl F. Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2005 |
| 3327 | Edmondson Oil & Gas | Ballinger, TX 76821 | Oil & Gas Operator | Nov 2024 |
| 3328 | Edp Management Company | Houston, TX 77056 | Oil & Gas Operator | Jul 2018 |
| 3329 | Edward Oil Company | Youngsville, PA 16371 | Oil & Gas Operator | May 2024 |
| 3330 | Edwards & Leach Oil Company | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2005 |
| 3331 | Edwards Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 3332 | Edwards Petroleum Company | Houston, TX 77092 | Oil & Gas Operator | Aug 2003 |
| 3333 | Edwards, Gus Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2004 |
| 3334 | Edwards, James | Albany, TX 76430 | Oil & Gas Operator | Sep 2000 |
| 3335 | Edwards-Foster, Inc. | Midland, TX 79708 | Oil & Gas Operator | Aug 1996 |
| 3336 | Eei Operating Inc. | Plano, TX 75093 | Oil & Gas Operator | May 2015 |
| 3337 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
| 3338 | Eex E&P Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
| 3339 | Eex Operating, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
| 3340 | Ef Energy, L.L.C. | Houston, TX 77084 | Oil & Gas Operator | Jun 2015 |
| 3341 | Ef Oil And Gas Invest, L.L.C. | Beaver, OK 73932 | Oil Operator | Nov 2024 |
| 3342 | Efficiency Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2008 |
| 3343 | Efficiency Operating Service | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 3344 | Egan Resources Inc. | Katy, TX 77494 | Oil & Gas Operator | Oct 2016 |
| 3345 | Eggleston, Garaland | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2003 |
| 3346 | Egi, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Nov 2024 |
| 3347 | Egl Oil And Gas Corporation | Tyler, TX 75703 | Oil & Gas Operator | Aug 2003 |
| 3348 | Ehrlich, Mitchell | Perryton, TX 79070 | Oil & Gas Operator | May 1999 |
| 3349 | Ehvi Exploration LLC | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2024 |
| 3350 | Eighty-Six Oil Company, Inc. | Luling, TX 78648 | Oil & Gas Operator | Nov 2024 |
| 3351 | Eise Oil, Inc. | San Antonio, TX 78213 | Oil Operator | Nov 2024 |
| 3352 | El Campo Operating, LLC | Dallas, TX 75206 | Oil & Gas Operator | Feb 2011 |
| 3353 | El Dorado Gas & Oil, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Nov 2024 |
| 3354 | El Dorado Resources Inc. | Waco, TX 76710 | Oil & Gas Operator | Oct 2009 |
| 3355 | El Indio Energy LLC | Austin, TX 78746 | Oil Operator | Nov 2024 |
| 3356 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
| 3357 | El Paso E&P Zapata, L.P. | Houston, TX 77002 | Oil & Gas Operator | Dec 2010 |
| 3358 | El Paso Field Services Company | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 3359 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 3360 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Nov 2024 |
| 3361 | El Ran, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2024 |
| 3362 | El Reno Energy, LLC | Granbury, TX 76048 | Oil & Gas Operator | Nov 2024 |
| 3363 | El Toro Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2024 |
| 3364 | El Tres Exploration | Houston, TX 77098 | Oil & Gas Operator | Mar 2008 |
| 3365 | Elam, Jack G. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 3366 | Elam, Jack G., Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 3367 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Sep 2024 |
| 3368 | Elco Oil & Gas | San Angelo, TX 76902 | Oil & Gas Operator | Dec 2014 |
| 3369 | Elco Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Nov 2024 |
| 3370 | Eldon Oil Co. | Three Rivers, TX 78071 | Oil & Gas Operator | Nov 2024 |
| 3371 | Eldorado Oil And Gas, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Nov 1995 |
| 3372 | Eldorado Operating Co. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2004 |
| 3373 | Eldred Prod And Consulting, LLC | Nocona, TX 76255 | Oil Operator | Nov 2024 |
| 3374 | Electragas, Inc. | Houston, TX 77064 | Oil Operator | Nov 2024 |
| 3375 | Element Petro Operating II, LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2016 |
| 3376 | Element Petroleum Op III, LLC | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 3377 | Element Petroleum Operating IV, | Midland, TX 79710 | Oil Operator | Nov 2024 |
| 3378 | Element Petroleum Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2015 |
| 3379 | Elendil Resources LLC | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 3380 | Eleon Operators, LLC | Katy, TX 77494 | Oil & Gas Operator | Nov 2024 |
| 3381 | Elephant Oil & Gas, LLC | Dallas, TX 75204 | Oil & Gas Operator | Nov 2015 |
| 3382 | Elevation Resources LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 3383 | Elfco, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Jun 1996 |
| 3384 | Elison Oil & Gas, Inc. | Montgomery, TX 77356 | Oil & Gas Operator | Oct 1999 |
| 3385 | Elk Energy Corporation | Denver, CO 80218 | Oil & Gas Operator | Mar 2008 |
| 3386 | Elk Energy Holdings LLC | Wichita, KS 67226 | Oil & Gas Operator | Jul 2024 |
| 3387 | Elk Meadows Resources LLC | Houston, TX 77037 | Oil & Gas Operator | Jan 2021 |
| 3388 | Elk River Resources, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Oct 2023 |
| 3389 | Elkhorn Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 1995 |
| 3390 | Ellard Oil | Loving, TX 76460 | Oil & Gas Operator | May 2022 |
| 3391 | Ellard, Herman | Graham, TX 76450 | Oil & Gas Operator | Feb 2005 |
| 3392 | Elliott Oil & Gas Company | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2006 |
| 3393 | Elliott Oil & Gas Operating Co. | Magnolia, TX 77354 | Oil & Gas Operator | Nov 2024 |
| 3394 | Elliott Oil Company, L.P. | Magnolia, TX 77354 | Oil & Gas Operator | Nov 2024 |
| 3395 | Ellis Exploration, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Nov 2024 |
| 3396 | Ellis, Amon | Olney, TX 76374 | Oil & Gas Operator | Aug 2003 |
| 3397 | Ellison Lease Operating | Bridgeport, TX 76426 | Oil & Gas Operator | Nov 2024 |
| 3398 | Ellison, Dewitt, Jr. | Aspermont, TX 79502 | Oil & Gas Operator | Mar 2016 |
| 3399 | Ellora Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Nov 2024 |
| 3400 | Ellora LLC | Boulder, CO 80308 | Oil & Gas Operator | Feb 2010 |