301 | Hudson Group LLC | Casper, WY 82601 | Oil & Gas Operator | Mar 2024 |
302 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
303 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
304 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
305 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Mar 2024 |
306 | Independent Production Company | Greenwood VIllage, CO 80121 | Oil & Gas Operator | May 2003 |
307 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
308 | Integrity Oil & Gas | Golden, CO 80401 | Oil & Gas Operator | May 2011 |
309 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
310 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Mar 2024 |
311 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
312 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
313 | J & J Production LLC | Worland, WY 82401 | Oil Operator | Dec 2023 |
314 | Jade Resources Inc | Englewood, CO 80112 | Oil Operator | Jul 1998 |
315 | Jay Management Company LLC | Houston, TX 77057 | Oil & Gas Operator | May 2024 |
316 | Jenex Petroleum Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | May 2024 |
317 | Jims Water Service Inc | Gillette, WY 82717 | Oil & Gas Operator | Oct 2016 |
318 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
319 | JN Exploration & Prod | Billings, MT 59103-0159 | Oil & Gas Operator | Apr 2001 |
320 | Joemar Wyoming Operating LLC | | Oil & Gas Operator | Mar 2024 |
321 | Juniper Petroleum Corporation | | Oil & Gas Operator | Aug 1983 |
322 | Justice Oil & Gas LLC | Gillette, WY 82716 | Oil & Gas Operator | Mar 2024 |
323 | Jva Operating Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2021 |
324 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |
325 | Kaiser Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 1990 |
326 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | May 2024 |
327 | Kauffman K P Company Inc | Denver, CO 80202 | Oil & Gas Operator | Mar 1996 |
328 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
329 | Keas Production Company LLC | Estes Park, CO 80517 | Oil Operator | Jan 2024 |
330 | Keith Walker O & G Co LLC | | Oil Operator | Jan 2024 |
331 | Kelly Operating Company | | Oil & Gas Operator | Oct 1991 |
332 | Kem Ventures, LP | Katy, TX 77450 | Oil & Gas Operator | Feb 2024 |
333 | Kenai Oil & Gas Inc | | Oil & Gas Operator | Jun 1987 |
334 | Kennedy & Mitchell | Woodward, OK 73802 | Oil & Gas Operator | Dec 1988 |
335 | Kennedy George C | Upton, WY 82730 | Oil & Gas Operator | Oct 2018 |
336 | Kennedy Oil | Gillette, WY 82716 | Oil & Gas Operator | Mar 2024 |
337 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Sep 2023 |
338 | Kestrel Energy Inc | Lakewood, CO 80401 | Oil & Gas Operator | Jan 2008 |
339 | Kirkwood W C | Casper, WY 82602 | Oil & Gas Operator | May 2005 |
340 | Kissack Resources. LLC | | Oil Operator | Mar 2024 |
341 | Kissack Water & Oil Service Inc | Rozet, WY 82727 | Oil & Gas Operator | Feb 2024 |
342 | Kissinger Petroleum Corp | | Oil & Gas Operator | Nov 1983 |
343 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
344 | L & J Operating Inc | Gillette, WY 82718 | Oil & Gas Operator | Aug 2016 |
345 | L & R Drilling Company | Belle Fourche, SD 57717 | Oil & Gas Operator | Dec 1999 |
346 | L B Industries Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2003 |
347 | Ladd & Lukowicz | | Oil & Gas Operator | May 1983 |
348 | Laguna Petroleum Company | Casper, WY 82601 | Oil & Gas Operator | Dec 1982 |
349 | Lance Oil & Gas Company Inc | Kirtland, NM 87417 | Oil & Gas Operator | Mar 2013 |
350 | Langley Energy | Euless, TX 76040 | Gas Operator | Jan 2016 |
351 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | May 2024 |
352 | Lasmo Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
353 | Lear Petroleum Exploration | | Oil & Gas Operator | Jul 2013 |
354 | Leclair-Westwood Inc | | Oil & Gas Operator | Mar 1982 |
355 | Legacy Reserves Operating LP | Denver, CO 80202 | Oil & Gas Operator | May 2024 |
356 | Levinson Partners Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 1995 |
357 | Liberty Resources Management Co LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2024 |
358 | Loil Oil LLC | Golden, CO 80402 | Oil & Gas Operator | Mar 2024 |
359 | Long Trust The | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2008 |
360 | Loral Operating LLC | Sheridan, WY 82801 | Gas Operator | Apr 2011 |
361 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |
362 | Low D J | Littleton, CO 80127 | Oil Operator | Dec 1999 |
363 | Lowry Exploration Inc | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2024 |
364 | Luff Exploration | Denver, CO 80203 | Oil & Gas Operator | Dec 2006 |
365 | M & K Oil Company LLC | Gillette, WY 82716 | Oil & Gas Operator | Mar 2024 |
366 | Mack Energy Corporation | Artesia, NM 88211 | Oil & Gas Operator | Feb 2024 |
367 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
368 | Majestic Petroleum Operations Inc | Story, WY 82842 | Gas Operator | Mar 2007 |
369 | Mallon Oil Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2005 |
370 | Manx Oil Corporation | Casper, WY 82601 | Oil & Gas Operator | Jun 2010 |
371 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Mar 2024 |
372 | Marlin Oil Company LLC | Gillette, WY 82718 | Oil & Gas Operator | Mar 2023 |
373 | Marmik Oil Company | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2015 |
374 | Martens & Peck Operating Co | | Gas Operator | Feb 1997 |
375 | Martens & Peck Production Co | Denver, CO 80222 | Oil & Gas Operator | Feb 1997 |
376 | Matrix Production Company | Sugar Land, TX 77478 | Oil & Gas Operator | Apr 2024 |
377 | Maxim Drilling & Expl Inc | Gillette, WY 82717 | Oil & Gas Operator | Mar 2024 |
378 | Maximus Operating, LTD. | Kilgore, TX 75663 | Oil & Gas Operator | May 2024 |
379 | Mbi Oil & Gas LLC | Dickinson, ND 58601 | Oil & Gas Operator | Mar 2024 |
380 | McAdams Roux & Associates | Denver, CO 80202 | Oil & Gas Operator | Dec 1999 |
381 | McClure Enterprises | Recluse, WY 82725 | Oil & Gas Operator | Dec 2023 |
382 | McGuire John C | Gillette, WY 82717 | Oil & Gas Operator | Oct 2005 |
383 | McKenzie Production Company | Houston, TX 77063 | Oil & Gas Operator | May 1995 |
384 | MCL 1 Oil & Gas Wyoming LLC | Minneapolis, MN 55402 | Oil & Gas Operator | Jul 2018 |
385 | McMahon-Bullington LP | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2009 |
386 | McMurry Oil LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
387 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
388 | Medallion Exploration | Holladay, UT 84117 | Oil & Gas Operator | Dec 2015 |
389 | Medallion Production Company | Tulsa, OK 74103 | Oil & Gas Operator | May 1997 |
390 | Medicine Bow Operating Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2014 |
391 | Mega Energy LLC | Gillette, WY 82718 | Gas Operator | Mar 2024 |
392 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | May 2024 |
393 | Meritage Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2005 |
394 | Merrion Oil & Gas Corp | Farmington, NM 87401 | Oil & Gas Operator | Mar 2024 |
395 | Methane Productions Inc | Recluse, WY 82725 | Oil & Gas Operator | Apr 2007 |
396 | Meyer Douglas P | Longmont, CO 80501 | Oil & Gas Operator | Aug 2006 |
397 | Michigan-Wisconsin Pipe Line Co | | Oil & Gas Operator | Dec 1983 |
398 | Mid-Con Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2024 |
399 | Midgard Energy Company | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2014 |
400 | Minnelusa Oil LLC | Temecula, CA 92589 | Oil Operator | Feb 2002 |