301 | Merrico Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2008 |
302 | Mexco Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Feb 2020 |
303 | MGM Well Service, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Oct 2004 |
304 | Mid-Continent Energy Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
305 | Mid-Continent Energy, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2020 |
306 | Midcon Offshore, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
307 | Midland Res. Oper. Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1998 |
308 | Midpar L.P. | Midland, TX 79702 | Oil & Gas Operator | Feb 1995 |
309 | Miller, W. C. Operating Company | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
310 | Miltex Oil Company | New Braunfels, TX 78132 | Oil & Gas Operator | Apr 2024 |
311 | Mission River Systems, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Apr 2024 |
312 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
313 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
314 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
315 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Apr 2024 |
316 | Mohican Operating, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2021 |
317 | Monterey Resources LLC | Dallas, TX 75230 | Oil & Gas Operator | Oct 2019 |
318 | Morgan Enterprises, Inc. | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
319 | Mowata Oil Company | Victoria, TX 77903 | Oil & Gas Operator | Oct 1996 |
320 | Mueller Engineering Corp. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Feb 2002 |
321 | Mueller Exploration, Inc. | Portland, TX 78374 | Oil & Gas Operator | Apr 2024 |
322 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 2023 |
323 | Musselman, Owen & King Oper.,Inc | Houston, TX 77002 | Oil & Gas Operator | Feb 1998 |
324 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |
325 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
326 | Natural Gas Pipeline Co Of Amer. | Houston, TX 77002 | Gas Operator | Jul 2008 |
327 | NBL Permian LLC | Houston, TX 77070 | Oil & Gas Operator | Aug 2018 |
328 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2017 |
329 | Newman Operating Company | Freer, TX 78357 | Oil & Gas Operator | Jun 2021 |
330 | NGL Crude Logistics LLC | Denver, CO 80220 | Oil Operator | Dec 2023 |
331 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
332 | Norcen Explorer, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 1998 |
333 | North Central Oil Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
334 | Northwest Oil Company | Dallas, TX 75204 | Oil & Gas Operator | Jun 2014 |
335 | Nueces Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | Oct 2002 |
336 | Null, W.M. Operations, Inc. | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Jun 2002 |
337 | Odegard Energy, Inc. | Houston, TX 77024 | Oil & Gas Operator | Jul 2020 |
338 | Oil Coast Corp. | S Houston, TX 77587 | Oil & Gas Operator | Apr 2024 |
339 | Oil Management Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2022 |
340 | Oldfield Acquisition LP | Austin, TX 78733 | Oil & Gas Operator | Sep 1996 |
341 | Oleum Operating Company, L.C. | Longview, TX 75606 | Oil & Gas Operator | Dec 2021 |
342 | Omega Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
343 | Omega Energy, LLC | Corpus Chrsti, TX 78418 | Oil & Gas Operator | Apr 2024 |
344 | Opex Energy, LLC | Houston, TX 77042 | Oil & Gas Operator | Mar 2008 |
345 | Orx Resources, L.L.C. | Houston, TX 77067 | Oil & Gas Operator | Apr 2024 |
346 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
347 | Outline Oil Corp. | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2024 |
348 | Overly Operating Co. | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2013 |
349 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |
350 | P-R-O Management, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
351 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
352 | Paleo Oil Company LLC | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Apr 2024 |
353 | Paloma Operating, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
354 | Panhandle Producing Company | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
355 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2024 |
356 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
357 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
358 | Patton Oil Corp. | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Aug 2003 |
359 | Payne, B.R. Oil & Gas, Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Feb 2006 |
360 | Pearl, Bill H. Productions, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Apr 2024 |
361 | Pegasus Petroleum Corporation | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2024 |
362 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2018 |
363 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
364 | Pennzenergy Exp. & Prod., L.L.C. | Houston, TX 77210 | Oil & Gas Operator | Mar 2000 |
365 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
366 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
367 | Permian Natural Resources | Austin, TX 78701 | Oil & Gas Operator | Apr 2024 |
368 | Petro Resources, Inc. | Fulton, TX 78358 | Oil & Gas Operator | Apr 2024 |
369 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
370 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
371 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
372 | Petro-Smith Operating LLC | Houston, TX 77005 | Oil & Gas Operator | Apr 2024 |
373 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Dec 2023 |
374 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
375 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
376 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Apr 2024 |
377 | Petrotex Engineering Company | Cypress, TX 77429 | Oil & Gas Operator | Apr 2024 |
378 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
379 | Pi Energy, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2024 |
380 | Pine Island Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
381 | Pintail Oil & Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
382 | Pintex Operating Inc. | Corpus Chrsti, TX 78478 | Oil & Gas Operator | Feb 2005 |
383 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Feb 2024 |
384 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Apr 2024 |
385 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
386 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
387 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
388 | Placer Oil Co. | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2008 |
389 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
390 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Apr 2024 |
391 | Preferred Pipeline Corp. | Victoria, TX 77902 | Oil & Gas Operator | Mar 2024 |
392 | Premier Minerals, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
393 | Prevail Energy, Inc | Corpus Chrsti, TX 78469 | Oil & Gas Operator | Apr 2024 |
394 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2024 |
395 | Princess Three Corporation | Henderson, TX 75653 | Oil & Gas Operator | Apr 2020 |
396 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
397 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2024 |
398 | QNK Energy,Inc. | Alice, TX 78333 | Oil & Gas Operator | Aug 2016 |
399 | Quatro Oil And Gas, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2024 |
400 | Quorum Energy Company | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |