301 | Oklahoma Energy Development Co | | Oil & Gas Operator | Sep 2008 |
302 | Oklahoma Energy Exchange LLC | | Oil & Gas Operator | Sep 2012 |
303 | Oklahoma Energy LLC | Skiatook, OK 74070-3998 | Oil Operator | Aug 2023 |
304 | Oklahoma Equipment & Salvage | Oklahoma City, OK 73120-5903 | Oil & Gas Operator | Mar 2015 |
305 | Oklahoma Gas & Oil Corporation | Okemah, OK 74859 | Oil Operator | Oct 2018 |
306 | Oklahoma Liquid Resources Inc | Owasso, OK 74055-0841 | Oil & Gas Operator | Dec 2023 |
307 | Oklahoma Marlin Oil Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Feb 2020 |
308 | Oklahoma Natural Resources Inc | Woodward, OK 73801 | Oil & Gas Operator | Sep 1996 |
309 | Oklahoma O & G Royalties Inc | Duncan, OK 73533 | Oil & Gas Operator | Nov 2000 |
310 | Oklahoma Oil & Gas MGMT Inc | | Oil & Gas Operator | Dec 2023 |
311 | Oklahoma Oil And Gas Resources LLC | | Oil & Gas Operator | Dec 2023 |
312 | Oklahoma Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2013 |
313 | Oklahoma Oil Tactics Inc | Edmond, OK 73003-1351 | Oil & Gas Operator | Mar 2015 |
314 | Oklahoma Operating Company | Midland, TX 79708 | Oil & Gas Operator | Apr 2024 |
315 | Oklahoma Operating, LLC | Holliday, TX 76366 | Oil Operator | Nov 2003 |
316 | Oklahoma Petroleum Allies LLC | Ardmore, OK 73401 | Oil Operator | Oct 2023 |
317 | Oklahoma Petroleum MGMT Corp | Tulsa, OK 74119 | Oil & Gas Operator | Jun 1993 |
318 | Oklahoma Prime Energy LLC | | Oil Operator | May 2020 |
319 | Oklahoma RB Operating Company | Midland, TX 79701 | Oil & Gas Operator | Jan 1998 |
320 | Oklahoma Rig & Salvage, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2015 |
321 | Oklahoma SWD Systems Inc | Odessa, TX 79762-8132 | Oil & Gas Operator | Dec 2023 |
322 | Oklahoma Tank Service Inc | Oklahoma City, OK 73143 | Oil Operator | Aug 1997 |
323 | Okland Oil Company | Oklahoma City, OK 73102-9022 | Oil & Gas Operator | Jan 2024 |
324 | Oklaoleum Oil And Gas Inc | Bristow, OK 74010-0057 | Oil Operator | Jan 2016 |
325 | Oklatex Energy, Inc. | Beaumont, TX 77702 | Oil Operator | Apr 2024 |
326 | Okmar Oil Compan | | Oil & Gas Operator | Feb 1995 |
327 | Okmar Oil Company | Marietta, OH 45750 | Oil & Gas Operator | Jun 2005 |
328 | Okreek Oil Company | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2024 |
329 | Okt Petroleum Company Inc | Oklahoma City, OK 73118-7425 | Oil & Gas Operator | Oct 2013 |
330 | Okt Resources, LLC | Edmond, OK 73013 | Oil & Gas Operator | Apr 2024 |
331 | Oktex Operating LLC | Edmond, OK 73013-1961 | Oil & Gas Operator | May 2020 |
332 | Oky Investments, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Sep 2021 |
333 | Ol' Boys Operations LLC | Pampa, TX 79065 | Oil & Gas Operator | Apr 2024 |
334 | Ol' Oily LLC | | Oil Operator | Dec 2023 |
335 | Olak Energy Production, LLC | Fort Gibson, OK 74434 | Oil Operator | Oct 2023 |
336 | Old Acres Farm, Inc. | Perry, NY 14530 | Gas Operator | Dec 2022 |
337 | Old Cedron, L.L.C. | Lubbock, TX 79410 | Oil & Gas Operator | May 2004 |
338 | Old Dominion Oil Corporation | Oklahoma City, OK 73107 | Oil & Gas Operator | Apr 2009 |
339 | Old Field Associates | | Oil & Gas Operator | Dec 2023 |
340 | Old MTN Gas Co Inc | Pleasantville, PA 16341-0329 | Oil & Gas Operator | Dec 2020 |
341 | Old Pine Energy Corporation | Austin, TX 78755 | Oil Operator | Apr 2024 |
342 | Old South Oil LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2023 |
343 | Old Timers Oil | Saratoga, TX 77585 | Oil & Gas Operator | Nov 2014 |
344 | Old Timers Oil Company, LLC | Saratoga, TX 77585 | Oil Operator | Aug 2022 |
345 | Old Timers Oil No. 2 Incorporated | Saratoga, TX 77585 | Oil Operator | Apr 2024 |
346 | Old Union Operating Company | Austin, TX 78716 | Oil & Gas Operator | Apr 2024 |
347 | Olde Chautauqua Farms | Portland, NY 14769 | Gas Operator | Dec 2022 |
348 | Older Than Dirt LLC | Palo Pinto, TX 76484 | Oil & Gas Operator | Apr 2024 |
349 | Oldfield Acquisition LP | Austin, TX 78733 | Oil & Gas Operator | Sep 1996 |
350 | Oldfield Operating Corporation | | Oil Operator | Dec 2013 |
351 | Olds Oil Company | Casper, WY 82604 | Oil Operator | Jun 1988 |
352 | Ole Chaparral On Possum Kingdom | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1997 |
353 | Ole Crow Operating | Wichita Falls, TX 76308-0072 | Oil Operator | Jan 2024 |
354 | Ole Miss Oil & Gas Inc | New Bremen, OH 45689 | Oil & Gas Operator | Dec 1985 |
355 | Ole, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
356 | Oleksandr Antonyuk | | Oil & Gas Operator | Dec 2018 |
357 | Oleum Energy LLC | Georgetown, TX 78628 | Oil & Gas Operator | Jan 2024 |
358 | Oleum Exploration, LLC | Brodheadsvill, PA 18322 | Oil & Gas Operator | Mar 2023 |
359 | Oleum Incorporated | | Oil & Gas Operator | Mar 1996 |
360 | Oleum Operating Company, L.C. | Longview, TX 75606 | Oil & Gas Operator | Dec 2021 |
361 | Oleum Operating La LLC | | Oil & Gas Operator | Nov 2022 |
362 | Oleum Partners, LLC | Frisco, TX 75034 | Oil & Gas Operator | Apr 2024 |
363 | Olia Oil & Gas Services LLC | | Oil & Gas Operator | Aug 2022 |
364 | Oliditt Corporation | | Gas Operator | Mar 2022 |
365 | Oliditt Production Inc. | | Gas Operator | Sep 1998 |
366 | Olifant Energy LLC | Tulsa, OK 74119 | Oil & Gas Operator | Jun 2019 |
367 | Olipdp II, LLC | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2024 |
368 | Oliphant Gertrud | Holdenville, OK 74848-0849 | Oil Operator | Aug 2013 |
369 | Oliphant Operating LTD LLC | Tulsa, OK 74159-4529 | Oil Operator | Jan 2024 |
370 | Olive Oil & Gas | Ellensboro, WV 26346 | Oil & Gas Operator | Dec 2021 |
371 | Olive Oil & Gas Inc | Oilton, OK 74052-0178 | Oil & Gas Operator | Nov 2023 |
372 | Oliver Oil & Gas | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
373 | Olmos Partners, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Apr 2024 |
374 | Olney Oil LLC | Boerne, TX 78006 | Oil Operator | Apr 2024 |
375 | Olney Properties, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2003 |
376 | Olsan Brothers, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Apr 1994 |
377 | Olsen Energy Inc. | Boerne, TX 78006 | Oil & Gas Operator | Apr 2024 |
378 | Olson D Producti | | Oil Operator | Jul 1994 |
379 | Olson, S. A. | Kenedy, TX 78119 | Oil & Gas Operator | Aug 1994 |
380 | Olson-Anderson Lease | | Oil Operator | Mar 2018 |
381 | Oltex Production | Idalou, TX 79329 | Oil & Gas Operator | Apr 2024 |
382 | Olympia Oil Inc | Edmond, OK 73083-7088 | Oil & Gas Operator | Jul 2020 |
383 | Olympic Exploration & Production Co | Norman, OK 73072 | Oil Operator | May 2003 |
384 | Olympic Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2004 |
385 | Olympic Natural Gas Company | | Oil & Gas Operator | Oct 1990 |
386 | Olympic Oil & Gas Co., Inc. | | Oil Operator | Apr 1991 |
387 | Olympic Oil, Inc. | Hutchinson, KS 67502 | Oil & Gas Operator | Dec 2023 |
388 | Olympic Petroleu | | Oil & Gas Operator | Jul 1993 |
389 | Olympic Petroleum Company | Tulsa, OK 74114 | Oil & Gas Operator | Jun 1998 |
390 | Olympic Production Company | | Oil & Gas Operator | Jul 1994 |
391 | Olympic Resources Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
392 | Olympus Energy, LLC | Canonsburg, PA 15317 | Gas Operator | Jan 2024 |
393 | Olympus Prop Inc | Franklin Park, IL 60131-1418 | Oil & Gas Operator | Dec 1997 |
394 | Omac Oil & Gas Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1990 |
395 | Omar Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
396 | Omber Petroleum & Energy Corp. | New Braunfels, TX 78131 | Oil & Gas Operator | Apr 2024 |
397 | Omeara Bros. | | Oil & Gas Operator | Oct 1982 |
398 | Omega Alpha Resources, LLC | Dallas, TX 75219 | Oil Operator | Apr 2024 |
399 | Omega Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
400 | Omega Energy Incorporated | | Oil & Gas Operator | May 1998 |