| 1 | Abercrombie A L | | Oil & Gas Operator | Nov 1995 |
| 2 | Abercrombie Energy, LLC | Wichita, KS 67212 | Oil & Gas Operator | Jan 2025 |
| 3 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | Feb 2025 |
| 4 | Anadarko Prod | | Oil & Gas Operator | Dec 1996 |
| 5 | Apollo Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Jan 2025 |
| 6 | Arcadian Resources LLC | Glen Elder, KS 67446 | Oil & Gas Operator | May 2025 |
| 7 | Beren Corporatio | | Oil & Gas Operator | Dec 1995 |
| 8 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | May 2025 |
| 9 | Berexco Incorpor | | Oil & Gas Operator | Dec 1996 |
| 10 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | May 2025 |
| 11 | Black Oak Exploration, LLC | Denver, CO 80210 | Oil & Gas Operator | Jan 2025 |
| 12 | Brehm Asset Management, LLC | Frisco, TX 75035 | Oil Operator | Dec 2024 |
| 13 | Chief Drilling C | | Oil & Gas Operator | Feb 1995 |
| 14 | Chief Drilling, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Sep 1997 |
| 15 | Cholla Production LLC | Littleton, CO 80127 | Oil & Gas Operator | Jan 2025 |
| 16 | Cholla Resources | | Oil Operator | Oct 1995 |
| 17 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 18 | Comanche Resources Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Mar 2025 |
| 19 | Continental Ener | | Oil & Gas Operator | Dec 1996 |
| 20 | Culbreath Oil & Gas Company, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Feb 2025 |
| 21 | Curt'S Oil Operation, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jan 2025 |
| 22 | Darrah Oil Company LLC | Wichita, KS 67201 | Oil & Gas Operator | May 2025 |
| 23 | Davis Petroleum | | Oil & Gas Operator | Dec 1996 |
| 24 | Daystar Petroleum, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Jan 2025 |
| 25 | Discovery Natural Resources LLC | Denver, CO 80202 | Oil & Gas Operator | May 2025 |
| 26 | Eagle Creek Corporation | Andover, KS 67002 | Oil & Gas Operator | Jan 2025 |
| 27 | Elevate Energy LTD | Aurora, CO 80016 | Oil & Gas Operator | Jan 2025 |
| 28 | Fina Oil & Chemi | | Oil & Gas Operator | Oct 1995 |
| 29 | Grand Mesa Operating Co | Wichita, KS 67206 | Oil & Gas Operator | Apr 2025 |
| 30 | Great Plains Energy, Inc. | Lincoln, NE 68516 | Oil & Gas Operator | Apr 2025 |
| 31 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Jan 2025 |
| 32 | Hartman Oil Co., Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jan 2025 |
| 33 | Heat Waves Hot Oil Service LLC | Denver, CO 80202 | Oil Operator | Jun 2011 |
| 34 | Hembree Robert F | | Oil Operator | Dec 2009 |
| 35 | Herman L. Loeb, LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Jan 2025 |
| 36 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jan 2025 |
| 37 | HJ, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Jan 2025 |
| 38 | Intermountain Refining Co, Inc | Farmington, NM 87499 | Gas Operator | Aug 2006 |
| 39 | J W Oil Co. | Cisco, TX 76437 | Oil & Gas Operator | May 2025 |
| 40 | Joe Gerstner Oil, LLC | Ness City, KS 67560 | Oil Operator | Jan 2025 |
| 41 | K N Energy Inc | Lakewood, CO 80228 | Oil & Gas Operator | Nov 2000 |
| 42 | Kykon Oil & Gas, Inc. | Billings, MT 59103 | Oil & Gas Operator | Feb 2009 |
| 43 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jan 2025 |
| 44 | Landmark Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jan 2025 |
| 45 | Lang Herman Oil | | Oil & Gas Operator | Dec 1996 |
| 46 | Lang, Herman - Marital Trust | Garden City, KS 67846 | Oil & Gas Operator | Jan 2025 |
| 47 | Lang, Kenneth R. | Garden City, KS 67846 | Oil & Gas Operator | Jan 2025 |
| 48 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | May 2025 |
| 49 | Larson Operating Company | Olmitz, KS 67564-8561 | Oil & Gas Operator | Dec 2019 |
| 50 | Lebsack Oil Prod | | Oil & Gas Operator | Nov 1995 |
| 51 | Lebsack Oil Production Inc. | Stafford, KS 67578 | Oil & Gas Operator | Jan 2025 |
| 52 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Mar 2025 |
| 53 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Mar 2025 |
| 54 | Murfin Drilling Company Inc | Wichita, KS 67202 | Oil & Gas Operator | Mar 2025 |
| 55 | Nec Operating - Kansas, LLC | Southlake, TX 76092 | Oil & Gas Operator | Jan 2025 |
| 56 | Nor-West Kansas Oil, L.L.C. | Wakeeney, KS 67672 | Oil Operator | Dec 2019 |
| 57 | Novy Oil & Gas, Inc. | Goddard, KS 67052 | Oil & Gas Operator | Mar 2025 |
| 58 | Okmar Oil Compan | | Oil & Gas Operator | Feb 1995 |
| 59 | Okt Resources, LLC | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 60 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Jan 2025 |
| 61 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 62 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 63 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Jan 2025 |
| 64 | Pioneer Resources Inc. | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 65 | Red Oak Energy, Inc. | Wichita, KS 67207 | Oil & Gas Operator | Jan 2025 |
| 66 | Reilly Oil E & P | | Oil Operator | Jan 2025 |
| 67 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Feb 2025 |
| 68 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Jan 2025 |
| 69 | Sandlin Oil Corp | Dacono, CO 80514 | Oil & Gas Operator | Apr 2025 |
| 70 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | May 2025 |
| 71 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Mar 2025 |
| 72 | Slawson Explorat | | Oil & Gas Operator | Dec 1996 |
| 73 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2025 |
| 74 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jan 2025 |
| 75 | Thunderbird Dril | | Oil & Gas Operator | Nov 1995 |
| 76 | Trek Aec, LLC | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 77 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2023 |
| 78 | Vess Oil Corporation | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 79 | Viking Resources | | Oil & Gas Operator | Sep 1995 |
| 80 | Viking Resources, Inc. | Stafford, TX 77477 | Oil & Gas Operator | May 2025 |
| 81 | Vintage Petroleum | | Oil & Gas Operator | Feb 2003 |
| 82 | Wabash Energy Corporation | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2009 |
| 83 | Walker Tank Service, Inc | Utica, KS 67584 | Oil Operator | Aug 2022 |
| 84 | Wausau Development Corporation | Laurel, MS 39440 | Oil & Gas Operator | Sep 2019 |
| 85 | Whitetail Crude, Inc | Ness City, KS 67560 | Oil & Gas Operator | Jan 2025 |
| 86 | Wilton Petroleum, Inc. | Canton, KS 67428 | Oil & Gas Operator | Jan 2025 |
| 87 | Wood Energy, Inc. | Mount Vernon, IL 62864 | Oil Operator | Jan 2025 |