| 1 | Abercrombie A L | | Oil & Gas Operator | Nov 1995 |
| 2 | Abercrombie Energy, LLC | Wichita, KS 67212 | Oil & Gas Operator | Apr 2025 |
| 3 | Abercrombie, A. L., Inc | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 4 | American Warrior | | Oil & Gas Operator | Mar 2025 |
| 5 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | May 2025 |
| 6 | Apollo Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | May 2025 |
| 7 | Beren Corporatio | | Oil & Gas Operator | Dec 1995 |
| 8 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 9 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 10 | Bickle Energies LLC | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 11 | Black Oak Exploration, LLC | Denver, CO 80210 | Oil & Gas Operator | Apr 2025 |
| 12 | Black Rock Resources, LLC | Russell, KS 67665 | Oil Operator | Apr 2025 |
| 13 | Black Tea Oil, LLC | Wichita, KS 67206 | Oil Operator | Apr 2025 |
| 14 | Blake Exploration, LLC | Bogue, KS 67625 | Oil Operator | Apr 2025 |
| 15 | Brite Liquids, LLC | Cheyenne Wells, CO 80810 | Oil & Gas Operator | Dec 2011 |
| 16 | Cambron, Paul L. | Ness City, KS 67560 | Oil & Gas Operator | Dec 2019 |
| 17 | Carmen Schmitt, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Apr 2025 |
| 18 | Castelli Exploration, Inc. | Oklahoma City, OK 73162 | Oil & Gas Operator | May 2025 |
| 19 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Jul 2025 |
| 20 | Chief Drilling C | | Oil & Gas Operator | Feb 1995 |
| 21 | Chizum Oil LLC | Wichita, KS 67211 | Oil & Gas Operator | May 2025 |
| 22 | CMX, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2025 |
| 23 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 24 | Concorde Resources Corporation | Eufaula, OK 74432 | Oil & Gas Operator | May 2025 |
| 25 | Culbreath Oil & Gas Company, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 2025 |
| 26 | Darrah Oil Company LLC | Wichita, KS 67201 | Oil & Gas Operator | Sep 2025 |
| 27 | Daystar Petroleum, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Apr 2025 |
| 28 | DGH Oil, LLC | Logan, KS 67646 | Oil Operator | Apr 2025 |
| 29 | Elevate Energy LTD | Aurora, CO 80016 | Oil & Gas Operator | Apr 2025 |
| 30 | Energy Reserves | | Oil & Gas Operator | Oct 1993 |
| 31 | Falcon Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 32 | Farmer, John O., Inc. | Russell, KS 67665 | Oil & Gas Operator | Apr 2025 |
| 33 | Fossil Resources LLC | Hays, KS 67601 | Oil Operator | Apr 2025 |
| 34 | Frontier Oil Com | | Oil & Gas Operator | May 1995 |
| 35 | Frontier Oil Company | | Oil Operator | Oct 1999 |
| 36 | Gore Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 37 | Grand Mesa Operating Co | Wichita, KS 67206 | Oil & Gas Operator | Jul 2025 |
| 38 | Hansen, Dane G. - Trust | Logan, KS 67646 | Oil Operator | Oct 2013 |
| 39 | Hartman Oil Co., Inc. | Wichita, KS 67206 | Oil & Gas Operator | May 2025 |
| 40 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Apr 2025 |
| 41 | Impetro Nonop LLC | | Oil Operator | Apr 2025 |
| 42 | Infinity Oil, Inc. | Hays, KS 67601 | Oil Operator | Apr 2025 |
| 43 | Jug Enterprises | | Oil Operator | Jan 1988 |
| 44 | K & E Petroleum | | Oil & Gas Operator | Jan 1995 |
| 45 | King Oil Operations, LLC | Ellis, KS 67637 | Oil Operator | Apr 2025 |
| 46 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Apr 2025 |
| 47 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Apr 2025 |
| 48 | Landmark Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 49 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Sep 2025 |
| 50 | Mad Operators LLC | | Oil & Gas Operator | Apr 2025 |
| 51 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 52 | McCoy Petroleum Corporation | Wichita, KS 67207 | Oil & Gas Operator | Jul 2025 |
| 53 | Mem Partnership LP, A General Partnership | Spring, TX 77393 | Oil Operator | Apr 2025 |
| 54 | Mid Continent Resources, Inc. | Houston, TX 77060 | Oil & Gas Operator | Sep 2025 |
| 55 | Mid-Continent Re | | Oil & Gas Operator | Jan 1993 |
| 56 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 57 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 58 | Murfin Drilling Company Inc | Wichita, KS 67202 | Oil & Gas Operator | Aug 2025 |
| 59 | MW Oil, Inc | | Oil & Gas Operator | Apr 2025 |
| 60 | New Age Oil LLC | Hays, KS 67601 | Oil & Gas Operator | Apr 2025 |
| 61 | New Gulf Operating LLC | Tulsa, OK 74133 | Oil Operator | Sep 2023 |
| 62 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Apr 2025 |
| 63 | Overland Exploration Company | | Oil Operator | Jan 2025 |
| 64 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Sep 2025 |
| 65 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Apr 2025 |
| 66 | Patton Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 67 | Pet-Ex, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
| 68 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 69 | Petropro Petroleum LLC | | Oil Operator | Mar 2025 |
| 70 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Apr 2025 |
| 71 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Apr 2025 |
| 72 | Pioneer Oil Company, Inc. | Vincennes, IN 47501 | Oil & Gas Operator | Apr 2025 |
| 73 | Pioneer Resources | Jefferson, CO 80456 | Oil Operator | Dec 2009 |
| 74 | Pioneer Resources Inc. | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 75 | Prolific Resources LLC | Wichita, KS 67208 | Oil & Gas Operator | Apr 2025 |
| 76 | Raymond Oil Co., Inc. | Wichita, KS 67201 | Oil & Gas Operator | Apr 2025 |
| 77 | Red Oak Energy, Inc. | Wichita, KS 67207 | Oil & Gas Operator | Apr 2025 |
| 78 | Richlan Drilling, A General Partnership | Beaver, KS 67525 | Oil & Gas Operator | Apr 2025 |
| 79 | Richland Oil Investments, LLC | Palco, KS 67657 | Oil Operator | Apr 2025 |
| 80 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Apr 2025 |
| 81 | Ritchie, A. Scott | Wichita, KS 67202 | Oil Operator | Mar 1988 |
| 82 | RL Investment, LLC | Hill City, KS 67642 | Oil Operator | Apr 2025 |
| 83 | Robinson Oil Com | | Oil & Gas Operator | Feb 1995 |
| 84 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Apr 2025 |
| 85 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Jun 2025 |
| 86 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2025 |
| 87 | Slawson, Donald C. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 88 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2025 |
| 89 | Stratakan Exploration, LLC | Plainville, KS 67663 | Oil & Gas Operator | Apr 2025 |
| 90 | Texaco Explorati | | Oil & Gas Operator | Dec 1996 |
| 91 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Jun 2025 |
| 92 | Thunderbird Dril | | Oil & Gas Operator | Nov 1995 |
| 93 | Thunderbird Drilling, Inc. | Wichita, KS 67207 | Oil Operator | Oct 2008 |
| 94 | Trans Pacific Oil Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jun 2025 |
| 95 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2023 |
| 96 | Vess Oil Corporation | Dallas, TX 75201 | Oil & Gas Operator | Sep 2025 |
| 97 | Vintage Petroleu | | Oil & Gas Operator | Dec 1995 |
| 98 | Vintage Petroleum | | Oil & Gas Operator | Feb 2003 |
| 99 | Wabash Energy Corporation | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2009 |
| 100 | White & Ellis Drilling, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2025 |