| 1 | 2R Oil, LLC | Sedan, KS 67361 | Oil Operator | Jun 2025 |
| 2 | 3-D Oil Company, A General Partnership | Dewey, OK 74029 | Oil Operator | Nov 2017 |
| 3 | A R & R Limited | | Oil & Gas Operator | Jul 1993 |
| 4 | A. R. & R., LTD. | Bartlesville, OK 74006 | Oil & Gas Operator | Jun 2025 |
| 5 | Adamson, Michael A. | Sapulpa, OK 74066 | Oil Operator | Oct 2015 |
| 6 | Alexander, Gary M. | Peru, KS 67360 | Oil Operator | Mar 2025 |
| 7 | Allen J D & Comp | | Oil Operator | Jan 1983 |
| 8 | Allenergy, Inc. | Grove, OK 74345 | Oil & Gas Operator | Jul 2012 |
| 9 | Aquila Resources | Burkesville, KY 42717 | Oil & Gas Operator | Dec 2022 |
| 10 | Arbuckle Enterprises, Inc. | Edmond, OK 73083 | Oil & Gas Operator | Jun 2025 |
| 11 | Argas Incorporat | | Oil & Gas Operator | Aug 1995 |
| 12 | Arps Petroleum C | | Oil Operator | Jul 1987 |
| 13 | Ash Donald D Oil | | Oil & Gas Operator | Feb 1986 |
| 14 | B & B Oil Compan | | Oil & Gas Operator | Jul 1992 |
| 15 | B & B Oil, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Oct 2025 |
| 16 | B E C Oil Compan | | Oil Operator | May 1986 |
| 17 | Belport Oil, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Jun 2025 |
| 18 | Bengtson, Earl L. | Salina, KS 67401 | Oil Operator | Mar 2007 |
| 19 | Biron Incorporat | | Oil Operator | Aug 1989 |
| 20 | Bison Energy Cor | | Oil & Gas Operator | Aug 1995 |
| 21 | Black Star Petro | | Oil Operator | Jul 1995 |
| 22 | Blazer, John A. | Oak Grove, AR 72660 | Oil Operator | Oct 1995 |
| 23 | Bluestem, Inc | Cedar Vale, KS 67024 | Oil Operator | Dec 2014 |
| 24 | Bohannan, Jerry | Sedan, KS 67361 | Oil Operator | Jan 2025 |
| 25 | Bonwell, W. A. | Wichita, KS 67202 | Oil Operator | Mar 1996 |
| 26 | Booth Industries Oil And Gas, LLC | Big Cove Tannery, PA 17212 | Oil Operator | Jul 2020 |
| 27 | Boots, H. E. | Independence, KS 67301 | Oil Operator | Apr 1993 |
| 28 | Bowen, Charles D. | Sedan, KS 67361 | Oil & Gas Operator | Jul 1998 |
| 29 | Brake Inc. | | Oil & Gas Operator | Sep 2017 |
| 30 | Brandt Prod Comp | | Oil & Gas Operator | Sep 1994 |
| 31 | Bratco Operating Company | Dewey, OK 74029 | Oil & Gas Operator | Jul 2025 |
| 32 | Buck Paul J | | Oil & Gas Operator | Feb 1995 |
| 33 | Buck, Paul Jordan | Sedan, KS 67361 | Oil & Gas Operator | Jun 2025 |
| 34 | Burdett, Alfred | Sedan, KS 67361 | Oil Operator | Aug 2008 |
| 35 | C & E Oil, LLC | Grenola, KS 67346 | Oil Operator | Nov 2021 |
| 36 | C-V Oil Company | Memphis, TN 38103 | Oil Operator | Jun 1998 |
| 37 | C5 Energy LLC | Collinsville, OK 74021 | Oil & Gas Operator | Dec 2019 |
| 38 | Calgary Energy LLC | Collinsville, OK 74021 | Oil & Gas Operator | Jun 2025 |
| 39 | Carroll Energy, LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Nov 2023 |
| 40 | Carter, Calvin Gene | Sedan, KS 67361 | Oil Operator | Nov 2018 |
| 41 | Chapman Energy O | | Oil & Gas Operator | Jun 1993 |
| 42 | Chautauqua Oil And Gas LLC | Tulsa, OK 74145 | Oil & Gas Operator | Jun 2025 |
| 43 | Chevron U S A In | | Oil & Gas Operator | Sep 2000 |
| 44 | Chinook Energy C | | Oil Operator | Jul 1991 |
| 45 | Clark Energy, LLC | Chanute, KS 66720 | Oil & Gas Operator | Jun 2022 |
| 46 | Claussen Roy A & | | Oil Operator | Jun 1986 |
| 47 | Cleaver Loraine | | Oil Operator | Dec 1996 |
| 48 | CM Oil Co. | FT Stockton, TX 79735 | Oil & Gas Operator | Oct 2025 |
| 49 | Colt Oil Company | Andrews, TX 79714 | Oil & Gas Operator | Feb 1996 |
| 50 | Conner, Rick | Winfield, KS 67156 | Oil Operator | Aug 2019 |
| 51 | Consolidated Gas & Energy Corp. | San Diego, CA 92130 | Oil Operator | Apr 2012 |
| 52 | Continental Ener | | Oil & Gas Operator | Dec 1996 |
| 53 | Copperhead Creek Enterprises, Inc. | Chautauqua, KS 67334 | Oil Operator | Sep 2019 |
| 54 | Crawford Oil Com | | Oil Operator | Dec 1987 |
| 55 | CTR 247 LLC | Peru, KS 67360 | Oil Operator | Jun 2025 |
| 56 | Cunningham Crude, A General Partnership | Independence, KS 67301 | Oil Operator | Jun 2025 |
| 57 | Darnall, Walter E. | Chautauqua, KS 67334 | Oil Operator | Dec 2009 |
| 58 | Darrah Oil Company LLC | Wichita, KS 67201 | Oil & Gas Operator | Oct 2025 |
| 59 | Decker Petroleum | | Oil & Gas Operator | Oct 2002 |
| 60 | Denman J M Oil C | | Oil Operator | Mar 1994 |
| 61 | Devonian Oil Com | | Oil Operator | Dec 1996 |
| 62 | Devonian Oil Company | Lawrence, KS 66044 | Oil Operator | May 2001 |
| 63 | Dilley, W.R. & A'Meta I. | Sedan, KS 67361 | Oil Operator | Nov 2015 |
| 64 | Dixon, Robin Francine | Moline, KS 67353 | Oil Operator | Jun 2025 |
| 65 | DLM Oil | | Oil Operator | Nov 2008 |
| 66 | Donke Oil & Gas, LLC | Tulsa, OK 74137 | Oil & Gas Operator | Mar 2018 |
| 67 | Donna Lee Oil Co | Independence, KS 67301 | Oil & Gas Operator | Apr 2014 |
| 68 | Doodlebug Oil Co | | Oil Operator | Jun 2006 |
| 69 | Doty, Tim | Sedan, KS 67361 | Oil Operator | Dec 2009 |
| 70 | Double "D" Oil Company, Inc. | Winfield, KS 67156 | Oil Operator | Jun 2025 |
| 71 | Double 'E' Oil-B | | Oil Operator | Mar 1989 |
| 72 | Earth Scientists | | Oil Operator | Jan 1986 |
| 73 | Elmore, John A. And Patricia R. | Sedan, KS 67361 | Oil Operator | Jun 2025 |
| 74 | Elwell, Mike | Lawrence, KS 66044 | Oil Operator | Dec 2009 |
| 75 | En/Drill America, Inc. | Crystal, MN 55428 | Oil & Gas Operator | Apr 2009 |
| 76 | Entransco Energy LLC | Dewey, OK 74029 | Oil & Gas Operator | Oct 2024 |
| 77 | Ers Operating Company LLC | Bothell, WA 98012 | Oil & Gas Operator | Jun 2016 |
| 78 | Essex Resources, LLC | Coffeyville, KS 67337 | Oil Operator | Jun 2025 |
| 79 | Excel Oil & Gas L.L.C. | Bucyrus, KS 66013 | Oil Operator | Jun 2025 |
| 80 | Exodus Gas & Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 81 | F.D. Looman | Sedan, KS 67361 | Oil Operator | Jun 2008 |
| 82 | Fadely, Dale Leon | Sedan, KS 67361 | Oil & Gas Operator | Dec 2009 |
| 83 | Fairchild Explor | | Oil & Gas Operator | Apr 1995 |
| 84 | Farris Oil, Inc. | Sedan, KS 67361 | Oil Operator | Apr 2025 |
| 85 | Finney Oil Company | | Oil & Gas Operator | Jun 2025 |
| 86 | Flatland Oil Com | | Oil Operator | Sep 1985 |
| 87 | Flowers Well Ser | | Oil Operator | Feb 1991 |
| 88 | Forestar Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2017 |
| 89 | Foster Oil & Gas | Bartlesville, OK 74005 | Oil & Gas Operator | Mar 2014 |
| 90 | French & Winters | | Oil Operator | Feb 1994 |
| 91 | G & J Oil Company, Inc. | Caney, KS 67333 | Oil & Gas Operator | Jun 2025 |
| 92 | Gator Oil Compan | | Oil Operator | May 1992 |
| 93 | Geoson Oil Compa | | Oil Operator | Jun 1984 |
| 94 | Goode Emmit | | Oil Operator | Nov 1992 |
| 95 | Green, Bobbie | Chautauqua, KS 67334 | Oil Operator | Jun 2025 |
| 96 | Harlo Oil Compan | | Oil Operator | Dec 1994 |
| 97 | Henderson, Chris | Pawhuska, OK 74056 | Oil Operator | Dec 2009 |
| 98 | Hessert Edward C | | Oil & Gas Operator | Sep 1993 |
| 99 | Hessert Loc Inc | Carl Junction, MO 64834 | Oil Operator | Dec 2009 |
| 100 | Hilltop Exploration, Inc. | Sedan, KS 67361 | Oil Operator | Jan 2000 |