| 1 | Abercrombie, A. L., Inc | Wichita, KS 67202 | Oil & Gas Operator | Jul 2024 |
| 2 | Abundance Energy I LLC | Tulsa, OK 74114 | Gas Operator | Sep 2024 |
| 3 | Aexco Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
| 4 | Alexander Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 5 | Amoco Energy Trading Corp | Chicago, IL 60601 | Oil & Gas Operator | Apr 2021 |
| 6 | Arkana Operating Company Inc | Fort Worth, TX 76116-5707 | Oil & Gas Operator | Jul 2008 |
| 7 | Arkansas Oklahoma Gas Corporation | Fort Smith, AR 72917 | Oil & Gas Operator | Aug 2022 |
| 8 | Auora Natural Gas & Assoc Prod | Dallas, TX 75205 | Oil & Gas Operator | Dec 2000 |
| 9 | Bay Oaks Resources LLC | Fort Smith, AR 72913-3129 | Gas Operator | Feb 2018 |
| 10 | Blue Water Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2024 |
| 11 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
| 12 | Bravo Arkoma LLC | Tulsa, OK 74103-3100 | Oil & Gas Operator | Aug 2024 |
| 13 | Briar Oil & Gas - Oklahoma 1 LLC | Houston, TX 77027-9392 | Oil & Gas Operator | Sep 2024 |
| 14 | Bricar Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Nov 1998 |
| 15 | Bso Inc | Cleveland, OK 74020 | Oil & Gas Operator | Sep 2024 |
| 16 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 17 | C & S Exploration Inc | | Oil & Gas Operator | Jun 2016 |
| 18 | Chesapeake Energy MKT Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2022 |
| 19 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2024 |
| 20 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Nov 2024 |
| 21 | Crest Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2024 |
| 22 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2024 |
| 23 | CX Disposals LLC | Minco, OK 73059-9472 | Oil Operator | Aug 2024 |
| 24 | D-Pex Operating Company | | Oil & Gas Operator | Sep 2004 |
| 25 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Nov 2024 |
| 26 | Daniel-Price Exploration Co | Tulsa, OK 74119 | Gas Operator | Apr 2011 |
| 27 | Davis, Joe D. | Fort Smith, AR 72903 | Gas Operator | Mar 2015 |
| 28 | Deka Exploration Inc | Oklahoma City, OK 73113-0057 | Oil & Gas Operator | Nov 2019 |
| 29 | Dexxon, Inc. | Kiefer, OK 74041 | Oil & Gas Operator | Sep 2024 |
| 30 | Dyne Exploration Company | Plano, TX 75093-6512 | Oil & Gas Operator | Apr 2020 |
| 31 | Eagle Energy PTR I LP | Houston, TX 77064 | Oil & Gas Operator | Feb 2015 |
| 32 | Eagle Gas Marketing Co | Oklahoma City, OK 73114-2202 | Oil & Gas Operator | Nov 2022 |
| 33 | Eastern Operating Company LLC | Gans, OK 74936 | Gas Operator | Aug 2024 |
| 34 | Echo Production Inc | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 35 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 36 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 37 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 38 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Sep 2024 |
| 39 | Fairway Midstream SVC & TRD | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2006 |
| 40 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Nov 2024 |
| 41 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 42 | Garnet Exploration LLC | Spiro, OK 74959-4839 | Gas Operator | Aug 2024 |
| 43 | Geyer Brothers Equipment Company | Noble, OK 73068-8540 | Oil & Gas Operator | Mar 2011 |
| 44 | Glenwood Operating LLC | Wichita Falls, TX 76309-4529 | Gas Operator | Sep 2024 |
| 45 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Aug 2024 |
| 46 | HCG Energy Corporation & Subs | | Oil & Gas Operator | Mar 2015 |
| 47 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 48 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
| 49 | Highland Energy Co | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 50 | Hoover & Wilson Exp & Prod Inc | Fort Smith, AR 72913-5171 | Gas Operator | Jul 2013 |
| 51 | J & J Energy Service LLC | Bokoshe, OK 74930 | Gas Operator | Aug 2024 |
| 52 | Jaco Energy Company Inc | Stigler, OK 74462 | Gas Operator | Sep 2024 |
| 53 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Aug 2024 |
| 54 | JHS Energy, Inc | Denver, CO 80222 | Oil & Gas Operator | Jul 2024 |
| 55 | JMC Exploration Inc | Dallas, TX 75225-5803 | Gas Operator | Jan 2007 |
| 56 | Johnson E Lyle | Oklahoma City, OK 73142 | Oil & Gas Operator | Aug 2024 |
| 57 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Nov 2024 |
| 58 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 59 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Sep 2024 |
| 60 | Lear Petroleum Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2015 |
| 61 | Longberry Energy Inc | Keota, OK 74941 | Gas Operator | Sep 2024 |
| 62 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Aug 2024 |
| 63 | Malpais Inc | Prague, OK 74864 | Gas Operator | Aug 2024 |
| 64 | Marion Corporation | | Oil & Gas Operator | Jan 2001 |
| 65 | Meade Energy Corporation | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Sep 2024 |
| 66 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Nov 2024 |
| 67 | Mountain Front Pipeline Co Inc | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 68 | Mueller Thomas C | Fort Smith, AR 72913 | Gas Operator | Aug 2008 |
| 69 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2024 |
| 70 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 71 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2017 |
| 72 | Njre Operating Company | Tulsa, OK 74119 | Gas Operator | Dec 2016 |
| 73 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
| 74 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Nov 2024 |
| 75 | Oil Patch Energy LLC | Tulsa, OK 74017 | Oil & Gas Operator | Sep 2024 |
| 76 | Oxley Energy LLC | Houston, TX 77042 | Gas Operator | Sep 2024 |
| 77 | Oxley Petroleum | Tulsa, OK 74119-3609 | Oil & Gas Operator | Jan 2020 |
| 78 | Oxley Petroleum Company | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Sep 2017 |
| 79 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 80 | Penn VIrginia MC Operating Co LLC | Houston, TX 77084-7213 | Oil & Gas Operator | Sep 2024 |
| 81 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 82 | Piper Operating LLC | Stigler, OK 74462 | Oil & Gas Operator | Sep 2024 |
| 83 | Plains Marketing & Trans Inc | Houston, TX 76002 | Oil & Gas Operator | Oct 1998 |
| 84 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 85 | Revere Corporation | Fort Smith, AR 72902-0908 | Oil & Gas Operator | Feb 2015 |
| 86 | Riverfront Exploration LLC | Fort Smith, AR 72901 | Gas Operator | Sep 2024 |
| 87 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2024 |
| 88 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Aug 2024 |
| 89 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Nov 2024 |
| 90 | Scarth Oil & Gas Co | Amarillo, TX 79101 | Oil & Gas Operator | Feb 1999 |
| 91 | Seagull Midcon Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 92 | Sebep LLC | Houston, TX 77224-9545 | Gas Operator | Sep 2024 |
| 93 | Sedna Energy LLC | Blanchard, OK 73010-8043 | Gas Operator | Apr 2017 |
| 94 | Shamrock Well Operations LLC | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Sep 2024 |
| 95 | Shields Energy Inc | Fort Smith, AR 72901-4607 | Oil & Gas Operator | Aug 2024 |
| 96 | Shields Operating Inc | Fort Smith, AR 72901-3834 | Oil & Gas Operator | Oct 2021 |
| 97 | Siosi Oil & Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2013 |
| 98 | Slawson, Donald C. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2024 |
| 99 | Southern Union Exploration Co. | Austin, TX 78701 | Oil & Gas Operator | Feb 2002 |
| 100 | Spring Resources, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2007 |