1 | M IV Ops., Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1998 |
2 | M. J. G., Inc. | Alice, TX 78333 | Oil & Gas Operator | Jul 2010 |
3 | Maggert Energy Corp. | Spring, TX 77387 | Gas Operator | Jun 1998 |
4 | Magna Oil & Gas Corporation | Irving, TX 75017 | Oil & Gas Operator | Feb 2016 |
5 | Magnum Engineering Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
6 | Magnum Producing, LP | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
7 | Manley, John D. III, Oper., Inc | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Feb 2016 |
8 | Manti Exploration Operating LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Feb 2015 |
9 | Manti Operating Company | Covington, LA 70435 | Oil & Gas Operator | Dec 2024 |
10 | Mantle Oil & Gas, LLC | Friendswood, TX 77546 | Oil & Gas Operator | Dec 2024 |
11 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
12 | Marco Polo Exploration, Inc. | Rosenberg, TX 77471 | Oil & Gas Operator | Dec 1993 |
13 | Mariner Energy, Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
14 | Mark IV Energy | San Antonio, TX 78213 | Oil & Gas Operator | Apr 1993 |
15 | Marquee Corporation | Houston, TX 77024 | Oil & Gas Operator | Dec 2024 |
16 | Marshall Energy, Inc. | Dallas, TX 75243 | Oil & Gas Operator | May 1997 |
17 | Martin Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | Aug 2024 |
18 | Martin Oil & Gas Inc. | Freer, TX 78357 | Oil & Gas Operator | Dec 2024 |
19 | Martineau Petroleum, Inc. | Dallas, TX 75206 | Oil & Gas Operator | May 2024 |
20 | Marwell Petroleum LTD Partnrship | Houston, TX 77027 | Oil & Gas Operator | Dec 2024 |
21 | Marwell Petroleum, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2006 |
22 | Mayfield Engineering Service | Tulsa, OK 74104 | Oil & Gas Operator | Dec 2024 |
23 | Maynard Oil Co. | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
24 | Mayo Oil Co. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2019 |
25 | McAnear Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | Dec 2002 |
26 | McBee Company, The | Dallas, TX 75219 | Oil & Gas Operator | Dec 1997 |
27 | McCutchin, Jerry | Dallas, TX 75380 | Oil & Gas Operator | Mar 2008 |
28 | McDonald & Johnson Resources,LLC | Cypress, TX 77429 | Oil & Gas Operator | Dec 2010 |
29 | McGowan Working Partners | Jackson, MS 39296 | Oil & Gas Operator | Dec 2000 |
30 | McGowan Working Partners, Inc. | Jackson, MS 39296 | Oil & Gas Operator | Dec 2024 |
31 | McGuffin, Joe Jr. | Christoval, TX 76935 | Oil & Gas Operator | Dec 2024 |
32 | McQueen Ed & Company Inc | Lindsey, OK 73052 | Oil & Gas Operator | Apr 2014 |
33 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
34 | McRae Exploration & Prod., Inc. | Houston, TX 77064 | Oil & Gas Operator | Feb 2017 |
35 | McRae, Nathan Rathburn | Hebbronville, TX 78361 | Oil & Gas Operator | Apr 1994 |
36 | Memorial Exploration Company | Saint Louis, MO 63105 | Oil & Gas Operator | Aug 1996 |
37 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Dec 2024 |
38 | Metano Energy, LP | San Antonio, TX 78216 | Oil & Gas Operator | Aug 2008 |
39 | MHM Pipeline Co., Inc. | Dallas, TX 75252 | Oil & Gas Operator | Dec 2024 |
40 | Michael Petroleum Corporation | Houston, TX 77040 | Oil & Gas Operator | Dec 2001 |
41 | Micro Operating, Inc. | Bryan, TX 77807 | Oil & Gas Operator | Dec 2024 |
42 | Midstates Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2024 |
43 | Midway Drilling Co. | Richmond, TX 77469 | Oil & Gas Operator | Dec 2024 |
44 | Milagro Exploration, LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2018 |
45 | Miller, M. M. & Sons | Alice, TX 78333 | Oil & Gas Operator | Apr 2007 |
46 | Miller, W. C. Operating Company | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2024 |
47 | Miramar Petroleum, Inc. | Corpus Chrsti, TX 78463 | Oil & Gas Operator | Sep 2017 |
48 | Mirando Resource, L.L.C. | Freer, TX 78357 | Oil & Gas Operator | Dec 2024 |
49 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
50 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
51 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
52 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
53 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Dec 2024 |
54 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Dec 2024 |
55 | Mohican Operating, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2021 |
56 | Morsey Oil & Gas Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
57 | Mortimer Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2003 |
58 | MPG Petroleum | San Antonio, TX 78217 | Oil & Gas Operator | Aug 2003 |
59 | Mueller Engineering Corp. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Feb 2002 |
60 | Mueller Exploration, Inc. | Portland, TX 78374 | Oil & Gas Operator | Dec 2024 |
61 | Munson, Charles C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2002 |
62 | Mustang Energy Inc. | Porter, TX 77365 | Oil & Gas Operator | Mar 2008 |
63 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |