| 101 | Kebrh Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 102 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | May 2026 |
| 103 | Kinder Morgan Inc | Lakewood, CO 80228 | Oil & Gas Operator | Dec 2011 |
| 104 | Kinderhook Dawson Prod | | Oil Operator | Dec 2013 |
| 105 | Kodiak Petroleum Inc | Englewood, CO 80155 | Oil & Gas Operator | Mar 2026 |
| 106 | Kuhn Oil Co Inc | Timber Lake, SD 57656 | Oil Operator | Dec 2025 |
| 107 | Lilis Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Aug 2017 |
| 108 | Lone Mountain Prod | | Oil Operator | Dec 2018 |
| 109 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2026 |
| 110 | Mica Energy Corp | Lincoln, NE 68516 | Oil & Gas Operator | Dec 2010 |
| 111 | Monahan | | Oil Operator | Dec 2009 |
| 112 | Morgan, Mike | | Oil Operator | Dec 2014 |
| 113 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 114 | Murfin DRLG Co Inc | Wichita, KS 67202 | Oil & Gas Operator | May 2026 |
| 115 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 116 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Jul 2026 |
| 117 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Mar 2026 |
| 118 | Open Range Energy LLC | Jones, OK 73049-8744 | Oil & Gas Operator | Dec 2024 |
| 119 | P & E Oil | | Oil & Gas Operator | Dec 2025 |
| 120 | Paine Petroleum Company LLC | | Oil Operator | Dec 2013 |
| 121 | Parklan Oil | | Oil Operator | Dec 2016 |
| 122 | Pathex Petroleum, Inc | | Gas Operator | Dec 2013 |
| 123 | Peak Nebraska Acquisitions, LLC | | Oil Operator | Dec 2010 |
| 124 | Peterson Energy Operating | | Oil Operator | Dec 2025 |
| 125 | Petro-Canada Resources (USA) | | Oil & Gas Operator | Dec 2009 |
| 126 | Petrowest Energy Co Inc | | Oil & Gas Operator | Dec 2025 |
| 127 | Pioneer Operations, LLC | Hays, KS 67601 | Oil Operator | Mar 2026 |
| 128 | Platte Valley Oil Co Inc | Ralston, NE 68127 | Oil Operator | Mar 2026 |
| 129 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | May 2026 |
| 130 | Quantum Operating Company | Denver, CO 80201 | Oil & Gas Operator | Dec 2012 |
| 131 | R. Lacy Services, LTD. | Longview, TX 75606 | Oil & Gas Operator | Jul 2026 |
| 132 | Rampart Energy Co | | Oil & Gas Operator | Dec 2025 |
| 133 | Raymond Oil Co., Inc. | Wichita, KS 67201 | Oil & Gas Operator | Mar 2026 |
| 134 | Recovery Energy, Inc | | Oil Operator | Dec 2012 |
| 135 | Remora Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2026 |
| 136 | Richardson County Crude Inc. | | Oil Operator | Dec 2025 |
| 137 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Jul 2026 |
| 138 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Mar 2026 |
| 139 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Jul 2026 |
| 140 | Rock Bottom Oil LLC | | Oil Operator | Dec 2025 |
| 141 | Roxanna Nebraska, LLC | | Oil Operator | Dec 2023 |
| 142 | Rta Petroleum, LLC | | Oil Operator | Dec 2025 |
| 143 | RV Borchert Oil Producer | | Oil & Gas Operator | Apr 2025 |
| 144 | Samuel Gary Jr. & Associates, Inc. | Denver, CO 80202 | Oil & Gas Operator | Mar 2026 |
| 145 | Singletree Resources, Inc. | | Oil Operator | Aug 2014 |
| 146 | Smith Oil Properties Inc | | Oil & Gas Operator | Nov 2022 |
| 147 | Smith Red Plains Production | | Oil & Gas Operator | Dec 2025 |
| 148 | Smith Red Plains Production LLC | | Oil & Gas Operator | May 2026 |
| 149 | Soper Production | | Oil & Gas Operator | Dec 2011 |
| 150 | Thoroughbred Associates LLC | Wichita, KS 67226 | Oil & Gas Operator | Mar 2026 |
| 151 | Tidal Wave Energy, Inc. | New Castle, PA 16105 | Oil & Gas Operator | Jun 2022 |
| 152 | Timka Resources, LTD | | Oil & Gas Operator | May 2026 |
| 153 | Tri Family Oil Co | | Oil Operator | Dec 2025 |
| 154 | Triple K Oil LLC | | Oil & Gas Operator | Dec 2025 |
| 155 | Twin Oil Partnership LLC | | Oil Operator | Dec 2025 |
| 156 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Jul 2026 |
| 157 | Vista Operating, Inc. | | Oil & Gas Operator | Dec 2014 |
| 158 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Jul 2026 |
| 159 | Walsh Production Inc | | Oil & Gas Operator | Dec 2007 |
| 160 | Warner Ventures Inc | | Oil Operator | Dec 2025 |
| 161 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | May 2026 |
| 162 | Western Operating Company | Denver, CO 80204 | Oil & Gas Operator | Apr 2026 |
| 163 | Wieser Oil LLC | | Oil & Gas Operator | Dec 2025 |
| 164 | Williams Inc | | Oil Operator | Dec 2019 |
| 165 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Mar 2026 |
| 166 | Wistrom | | Oil Operator | Aug 2019 |
| 167 | Yount Foundation Inc | | Oil Operator | Dec 2025 |
| 168 | Z & S Construction Co Inc | Kimball, NE 69145 | Oil & Gas Operator | Feb 2026 |
| 169 | Zeiders Bros. Oil & Gas Company, L.L.C. | Edmond, OK 73003 | Oil & Gas Operator | Apr 2026 |