| 1 | OXY USA Inc. | 123 | 413 | 3 | 613 | Nov 12, 2025 | Oct 29, 2026 |
| 2 | OXY USA WTP LP | 18 | 179 | 0 | 214 | Apr 1, 2026 | Oct 26, 2026 |
| 3 | McClure Oil Company, Inc. | 14 | 56 | 0 | 35 | Apr 22, 2026 | Oct 27, 2026 |
| 4 | Occidental Permian Ltd. | 10 | 893 | 5 | 878 | Feb 2, 2026 | Oct 7, 2026 |
| 5 | Bce-Mach III LLC | 8 | 10 | 7 | 1,243 | Jun 3, 2026 | Jul 20, 2026 |
| 6 | Active Iron Energy, LLC | 5 | 5 | 0 | 19 | Sep 3, 2026 | Oct 22, 2026 |
| 7 | Hilcorp Energy Company | 4 | 4 | 0 | 997 | Nov 5, 2025 | Jun 17, 2026 |
| 8 | White Rock Oil & Gas, LLC | 1 | 21 | 0 | 55 | Mar 10, 2026 | Mar 10, 2026 |
| 9 | Enterprise Products Operatingllc | 1 | 3 | 0 | 17 | Apr 30, 2026 | Apr 30, 2026 |
| 10 | Manzano, LLC | 1 | 7 | 1 | 3 | Oct 14, 2026 | Oct 14, 2026 |
| 11 | Big Mountain Operating LLC | 1 | 5 | 0 | 2 | Mar 24, 2026 | Mar 24, 2026 |
| 12 | Beach Exploration, Inc. | 1 | 6 | 0 | 0 | Feb 5, 2026 | Feb 5, 2026 |
| 13 | Cory, Kenneth W. Ltd. | 1 | 2 | 0 | 0 | Sep 14, 2026 | Sep 14, 2026 |
| 14 | Occidental Permian EOR LLC | — | 0 | 0 | 709 | — | — |
| 15 | Yucca Energy Inc. | — | 0 | 0 | 427 | — | — |
| 16 | Crescent Energy Operating LLC | — | 0 | 0 | 426 | — | — |
| 17 | XTO Energy Inc. | — | 466 | 0 | 358 | — | — |
| 18 | Parallel Petroleum LLC | — | 106 | 0 | 249 | — | — |
| 19 | Citation Oil & Gas Corp. | — | 153 | 0 | 171 | — | — |
| 20 | Texaco Inc. | — | 166 | 0 | 110 | — | — |
| 21 | Sabinal Energy Operating, LLC | — | 59 | 0 | 88 | — | — |
| 22 | Shell Western E&P Inc. | — | 543 | 0 | 82 | — | — |
| 23 | Block T Petroleum Inc. | — | 0 | 0 | 82 | — | — |
| 24 | Shell Oil Company | — | 108 | 0 | 78 | — | — |
| 25 | Atlas Operating LLC | — | 0 | 0 | 76 | — | — |
| 26 | Fasken Oil and Ranch, Ltd. | — | 35 | 0 | 75 | — | — |
| 27 | Seaboard Operating Co. | — | 56 | 0 | 73 | — | — |
| 28 | Extex Operating Company | — | 0 | 0 | 62 | — | — |
| 29 | Texland Petroleum, L.P. | — | 57 | 0 | 61 | — | — |
| 30 | Parallel Petroleum Corporation | — | 114 | 0 | 60 | — | — |
| 31 | Fusion Energy Holdings LLC | — | 0 | 0 | 58 | — | — |
| 32 | Contango Resources Inc. | — | 0 | 0 | 50 | — | — |
| 33 | Ring Energy, Inc. | — | 74 | 0 | 49 | — | — |
| 34 | Zarvona Energy LLC | — | 15 | 0 | 49 | — | — |
| 35 | Ares Energy Ltd. | — | 0 | 0 | 49 | — | — |
| 36 | Mobil Producing TX. & N.M. Inc. | — | 250 | 0 | 47 | — | — |
| 37 | Texaco E & P Inc. | — | 181 | 0 | 46 | — | — |
| 38 | Lynx Operating Co., Inc. | — | 106 | 0 | 45 | — | — |
| 39 | Gungoll, Carl E. Exploration LLC | — | 56 | 0 | 45 | — | — |
| 40 | Three Span Oil & Gas, Inc. | — | 11 | 0 | 42 | — | — |
| 41 | Oneok Texas Gas Storage, L.L.C. | — | 5 | 0 | 38 | — | — |
| 42 | Amoco Production Company | — | 234 | 0 | 37 | — | — |
| 43 | Power Upp Midland 1 LLC | — | 0 | 0 | 37 | — | — |
| 44 | Exxon Corp. | — | 412 | 0 | 33 | — | — |
| 45 | Conoco Inc. | — | 0 | 0 | 33 | — | — |
| 46 | Unitex Oil & Gas L.L.C. | — | 0 | 0 | 33 | — | — |
| 47 | Capturepoint LLC | — | 0 | 0 | 31 | — | — |
| 48 | Hicon Gas Producers, Inc. | — | 52 | 0 | 29 | — | — |
| 49 | Bam Permian Operating LLC | — | 0 | 0 | 29 | — | — |
| 50 | Knox Industries, Inc. | — | 1 | 0 | 28 | — | — |
| 51 | Union Oil Company of California | — | 301 | 0 | 26 | — | — |
| 52 | Basin Oil & Gas Operating, LLC | — | 8 | 0 | 26 | — | — |
| 53 | Baylor Operating LLC | — | 0 | 0 | 26 | — | — |
| 54 | Watusi Energy LLC | — | 0 | 0 | 26 | — | — |
| 55 | Samedan Oil Corporation | — | 121 | 0 | 25 | — | — |
| 56 | Ciervo Resources Asset Hldg LLC | — | 0 | 0 | 25 | — | — |
| 57 | OXY USA WTP EOR LLC | — | 0 | 0 | 24 | — | — |
| 58 | Finley Resources, Inc. | — | 4 | 0 | 23 | — | — |
| 59 | Mobil Oil Corporation | — | 77 | 0 | 22 | — | — |
| 60 | Snyder Oil Corporation | — | 20 | 0 | 22 | — | — |
| 61 | Fasken, David | — | 58 | 0 | 21 | — | — |
| 62 | Maverick Operating, LLC | — | 7 | 0 | 21 | — | — |
| 63 | Union Texas Petroleum Corp. | — | 5 | 0 | 21 | — | — |
| 64 | Henry Petroleum Corp. | — | 20 | 0 | 19 | — | — |
| 65 | Joint Resources Company | — | 19 | 0 | 19 | — | — |
| 66 | Aviator Energy LLC | — | 0 | 0 | 19 | — | — |
| 67 | Grace Petroleum Operating LLC | — | 0 | 0 | 19 | — | — |
| 68 | Amerada Hess Corporation | — | 459 | 0 | 18 | — | — |
| 69 | Santa FE Energy Co. | — | 26 | 0 | 18 | — | — |
| 70 | Amirmex Inc. | — | 5 | 0 | 18 | — | — |
| 71 | BCP Resources LLC | — | 0 | 0 | 18 | — | — |
| 72 | Black Sheep Oil & Gas LLC | — | 0 | 0 | 18 | — | — |
| 73 | Apache Corporation | — | 102 | 0 | 17 | — | — |
| 74 | Richland Resources Corporation | — | 2 | 0 | 16 | — | — |
| 75 | Diamondback E&P LLC | — | 0 | 0 | 15 | — | — |
| 76 | G-M-K Oil Co., Inc. | — | 21 | 0 | 14 | — | — |
| 77 | Southwest Royalties Inc. | — | 0 | 0 | 14 | — | — |
| 78 | Sozo Natural Resources LLC | — | 2 | 0 | 13 | — | — |
| 79 | Los Hijos de Sanchez J LLC | — | 0 | 0 | 13 | — | — |
| 80 | Sandridge Expl. and Prod., LLC | — | 144 | 0 | 12 | — | — |
| 81 | Tenneco Oil Co. | — | 102 | 0 | 12 | — | — |
| 82 | Giebel Petroleum Ltd. | — | 12 | 0 | 12 | — | — |
| 83 | WTG Exploration | — | 11 | 0 | 12 | — | — |
| 84 | Whiting Oil and Gas Corporation | — | 3 | 0 | 12 | — | — |
| 85 | Perimeter Resource Company | — | 1 | 0 | 12 | — | — |
| 86 | Petex | — | 0 | 0 | 12 | — | — |
| 87 | Smith Pipe of Abilene | — | 0 | 0 | 12 | — | — |
| 88 | Whitehawk Production Company | — | 0 | 0 | 12 | — | — |
| 89 | Humble Oil & Refining Co. | — | 0 | 0 | 11 | — | — |
| 90 | Voskamp Exploration, Inc. | — | 52 | 0 | 10 | — | — |
| 91 | Elk Energy Corporation | — | 5 | 0 | 10 | — | — |
| 92 | Boyd, D. K. Oil and Gas Co.,inc. | — | 4 | 0 | 10 | — | — |
| 93 | National Coop Refinery Assoc | — | 2 | 0 | 10 | — | — |
| 94 | Retriever Operating LLC | — | 0 | 0 | 10 | — | — |
| 95 | Rock Fish Operating LLC | — | 0 | 0 | 10 | — | — |
| 96 | Clark, John M., Inc. | — | 18 | 0 | 9 | — | — |
| 97 | Continental Oil Company | — | 0 | 0 | 9 | — | — |
| 98 | Surge Operating LLC | — | 0 | 0 | 9 | — | — |
| 99 | Arco Oil & Gas Co. | — | 32 | 0 | 8 | — | — |
| 100 | Jones, L. E. Operating, Inc. | — | 18 | 0 | 8 | — | — |
| 101 | Raw Oil & Gas, Inc. | — | 5 | 0 | 8 | — | — |
| 102 | Rein Pusher Operating LLC | — | 1 | 0 | 8 | — | — |
| 103 | R3 Operating Corporation | — | 0 | 0 | 8 | — | — |
| 104 | Thresher Energy Inc. | — | 0 | 0 | 8 | — | — |
| 105 | Maralo, Inc. | — | 28 | 0 | 7 | — | — |
| 106 | Sage Energy Company | — | 20 | 0 | 7 | — | — |
| 107 | Legacy Reserves Operating LP | — | 3 | 0 | 7 | — | — |
| 108 | Cities Service Oil Co. | — | 1 | 0 | 7 | — | — |
| 109 | Coastal States Gas Prod. Co. | — | 1 | 0 | 7 | — | — |
| 110 | Atlantic Richfield Co. | — | 0 | 0 | 7 | — | — |
| 111 | Bald Eagle Operating Inc. | — | 0 | 0 | 7 | — | — |
| 112 | Cross Timbers Energy LLC | — | 0 | 0 | 7 | — | — |
| 113 | Scythian Ltd. | — | 0 | 0 | 7 | — | — |
| 114 | Chevron U. S. A. Inc. | — | 66 | 0 | 6 | — | — |
| 115 | Noble Energy Inc | — | 66 | 0 | 6 | — | — |
| 116 | Young, Marshall R., Oil Company | — | 39 | 0 | 6 | — | — |
| 117 | Devon Energy Production Co, L.P. | — | 20 | 0 | 6 | — | — |
| 118 | Thompson, J. Cleo | — | 15 | 0 | 6 | — | — |
| 119 | Griffin Petroleum Company | — | 9 | 0 | 6 | — | — |
| 120 | Pearl O&G Opco, LLC | — | 7 | 0 | 6 | — | — |
| 121 | Great Western Drlg. Co. | — | 3 | 0 | 6 | — | — |
| 122 | Phillips Petroleum Company | — | 3 | 0 | 6 | — | — |
| 123 | McDonnold Operating, Inc. | — | 2 | 0 | 6 | — | — |
| 124 | Walsh & Watts, Inc. | — | 1 | 0 | 6 | — | — |
| 125 | Eagle Capital Partners LLC | — | 0 | 0 | 6 | — | — |
| 126 | Free Rein Operating LLC | — | 0 | 0 | 6 | — | — |
| 127 | Hunt Wm. Herbert Trust Est. | — | 0 | 0 | 6 | — | — |
| 128 | Sheridan Production Company, LLC | — | 160 | 0 | 5 | — | — |
| 129 | Belco Petroleum Corporation | — | 23 | 0 | 5 | — | — |
| 130 | Pitts Energy Co. | — | 19 | 0 | 5 | — | — |
| 131 | Fasken, Barbara | — | 10 | 0 | 5 | — | — |
| 132 | Brady, W. Production, Inc. | — | 6 | 0 | 5 | — | — |
| 133 | Butler, Kevin O. & Assoc., Inc. | — | 6 | 0 | 5 | — | — |
| 134 | Kimbell Operating Company | — | 5 | 0 | 5 | — | — |
| 135 | BTA Oil Producers | — | 4 | 0 | 5 | — | — |
| 136 | Rim Operating, Inc. | — | 4 | 0 | 5 | — | — |
| 137 | Texas Pacific Oil Company, Inc. | — | 3 | 0 | 5 | — | — |
| 138 | Aspen Operating Company, L.L.C. | — | 1 | 0 | 5 | — | — |
| 139 | Alpha Twenty-One Production Co. | — | 0 | 0 | 5 | — | — |
| 140 | Blackrock Operating LLC | — | 0 | 0 | 5 | — | — |
| 141 | Tamer Oil & Gas | — | 0 | 0 | 5 | — | — |
| 142 | Trek Resources Inc. | — | 0 | 0 | 5 | — | — |
| 143 | Fina Oil & Chemical Company | — | 87 | 0 | 4 | — | — |
| 144 | W & W Oil Company M | — | 28 | 0 | 4 | — | — |
| 145 | Southland Royalty Company | — | 20 | 0 | 4 | — | — |
| 146 | V-F Petroleum Inc. | — | 13 | 0 | 4 | — | — |
| 147 | Western Reserves Oil Company Inc | — | 4 | 0 | 4 | — | — |
| 148 | McDaniel Company, Inc., The | — | 2 | 0 | 4 | — | — |
| 149 | Terra Resources, Inc. | — | 1 | 0 | 4 | — | — |
| 150 | Utoco, Ltd. | — | 1 | 0 | 4 | — | — |
| 151 | Adobe Oil Co. | — | 0 | 0 | 4 | — | — |
| 152 | Bryant Linda | — | 0 | 0 | 4 | — | — |
| 153 | Euramerica Partnership 69 | — | 0 | 0 | 4 | — | — |
| 154 | Hodge T. F. | — | 0 | 0 | 4 | — | — |
| 155 | Pan American Petroleum Corp. | — | 0 | 0 | 4 | — | — |
| 156 | Skelly Oil Co. | — | 0 | 0 | 4 | — | — |
| 157 | Texas Mineral Group | — | 0 | 0 | 4 | — | — |
| 158 | Energen Resources Corporation | — | 266 | 0 | 3 | — | — |
| 159 | Platinum Exploration Inc. | — | 61 | 0 | 3 | — | — |
| 160 | Chevron Midcontinent, L.P. | — | 16 | 0 | 3 | — | — |
| 161 | Hendrix, John H. Corp. | — | 14 | 0 | 3 | — | — |
| 162 | Stallion Energy LLC | — | 13 | 0 | 3 | — | — |
| 163 | Hillin Prod. Co. | — | 12 | 0 | 3 | — | — |
| 164 | Tamarack Petroleum Company, Inc. | — | 12 | 0 | 3 | — | — |
| 165 | Grand Banks Energy Company | — | 9 | 0 | 3 | — | — |
| 166 | Champlin Exploration, Inc. | — | 8 | 0 | 3 | — | — |
| 167 | Marathon Oil Company | — | 8 | 0 | 3 | — | — |
| 168 | Dinero Operating Company | — | 7 | 0 | 3 | — | — |
| 169 | Cholla Petroleum, Inc. | — | 6 | 0 | 3 | — | — |
| 170 | Vogel, A. J., Inc. | — | 6 | 0 | 3 | — | — |
| 171 | Trinity EOR, LLC | — | 5 | 0 | 3 | — | — |
| 172 | North American Royalties, Inc. | — | 4 | 0 | 3 | — | — |
| 173 | Barnes, J. C., Oil Company | — | 3 | 0 | 3 | — | — |
| 174 | Lanexco, Inc. | — | 1 | 0 | 3 | — | — |
| 175 | Tahoe Oil & Cattle Co. | — | 1 | 0 | 3 | — | — |
| 176 | Adobe Resources Corporation | — | 0 | 0 | 3 | — | — |
| 177 | Big Run Production Company | — | 0 | 0 | 3 | — | — |
| 178 | Bristol Resources Corporation | — | 0 | 0 | 3 | — | — |
| 179 | Circle B Pipe & Supply LLC | — | 0 | 0 | 3 | — | — |
| 180 | Hanover Energy Inc. | — | 0 | 0 | 3 | — | — |
| 181 | Ingram Tom L. | — | 0 | 0 | 3 | — | — |
| 182 | Mallard Exploration Inc. | — | 0 | 0 | 3 | — | — |
| 183 | McCutchin Alma | — | 0 | 0 | 3 | — | — |
| 184 | McGrath & Smith Inc. | — | 0 | 0 | 3 | — | — |
| 185 | N B N Exploration Inc. | — | 0 | 0 | 3 | — | — |
| 186 | Permian West Corp. | — | 0 | 0 | 3 | — | — |
| 187 | Rafter T Resources LLC | — | 0 | 0 | 3 | — | — |
| 188 | Reeves County Systems Inc. | — | 0 | 0 | 3 | — | — |
| 189 | Robertson Resources Inc. | — | 0 | 0 | 3 | — | — |
| 190 | SF Resources Inc | — | 0 | 0 | 3 | — | — |
| 191 | Shenandoah Petroleum Corporation | — | 0 | 0 | 3 | — | — |
| 192 | Snow Oil & Gas Inc. | — | 0 | 0 | 3 | — | — |
| 193 | Spindletop Drilling Co. | — | 0 | 0 | 3 | — | — |
| 194 | Caprock Operating, Inc. | — | 34 | 0 | 2 | — | — |
| 195 | Texland-Rector & Schumacher | — | 31 | 0 | 2 | — | — |
| 196 | Fortuna Resources Dvlpment, LLC | — | 28 | 0 | 2 | — | — |
| 197 | Pioneer Natural Res. USA, Inc. | — | 26 | 0 | 2 | — | — |
| 198 | Westland Oil Development Corp. | — | 26 | 0 | 2 | — | — |
| 199 | TXO Production Corp. | — | 23 | 0 | 2 | — | — |
| 200 | Cross Timbers Operating Company | — | 17 | 0 | 2 | — | — |
| 201 | Caprock Oil & Gas, Inc. | — | 16 | 0 | 2 | — | — |
| 202 | Brown, H. L., Jr. | — | 15 | 0 | 2 | — | — |
| 203 | American Exploration Company | — | 12 | 0 | 2 | — | — |
| 204 | Brown, H.L. Operating, L.L.C. | — | 10 | 0 | 2 | — | — |
| 205 | Mitchell Energy Corporation | — | 10 | 0 | 2 | — | — |
| 206 | Adventure Operating Company, LLC | — | 9 | 0 | 2 | — | — |
| 207 | Arch Petroleum Inc. | — | 8 | 0 | 2 | — | — |
| 208 | Baruch-Foster Corporation | — | 8 | 0 | 2 | — | — |
| 209 | Davis Oil Company | — | 8 | 0 | 2 | — | — |
| 210 | Arco Permian | — | 7 | 0 | 2 | — | — |
| 211 | Chesapeake Operating, Inc. | — | 7 | 0 | 2 | — | — |
| 212 | Redmon Oil Company, Inc., The | — | 7 | 0 | 2 | — | — |
| 213 | Avra Oil Company | — | 6 | 0 | 2 | — | — |
| 214 | Cope, Glenn | — | 6 | 0 | 2 | — | — |
| 215 | Dyad Petroleum Company | — | 5 | 0 | 2 | — | — |
| 216 | Moran Exploration, Inc. | — | 5 | 0 | 2 | — | — |
| 217 | Miranda Energy Corporation | — | 4 | 0 | 2 | — | — |
| 218 | Superior Oil Company, The | — | 4 | 0 | 2 | — | — |
| 219 | Williams, Clayton Energy, Inc. | — | 4 | 0 | 2 | — | — |
| 220 | Farmers Oil Company | — | 3 | 0 | 2 | — | — |
| 221 | Permian Resources, Inc. | — | 3 | 0 | 2 | — | — |
| 222 | Rand Oil & Gas Corp. | — | 3 | 0 | 2 | — | — |
| 223 | Samson Lone Star, LLC | — | 3 | 0 | 2 | — | — |
| 224 | Texakoma E & P, LLC | — | 3 | 0 | 2 | — | — |
| 225 | Mabee Petroleum Corp. | — | 2 | 0 | 2 | — | — |
| 226 | Reliance Energy, Inc. | — | 2 | 0 | 2 | — | — |
| 227 | Sahara Operating Company | — | 2 | 0 | 2 | — | — |
| 228 | Energy Development Corp. | — | 1 | 0 | 2 | — | — |
| 229 | Libertad Operating LLC | — | 1 | 0 | 2 | — | — |
| 230 | Petroplex Energy Inc. | — | 1 | 0 | 2 | — | — |
| 231 | Petroplex Equipment, Inc. | — | 1 | 0 | 2 | — | — |
| 232 | Petrosource Production Co., LLC | — | 1 | 0 | 2 | — | — |
| 233 | Rhonda Operating Co. | — | 1 | 0 | 2 | — | — |
| 234 | Union Seaboard Corporation | — | 1 | 0 | 2 | — | — |
| 235 | Adobe Oil & Gas Corp. | — | 0 | 0 | 2 | — | — |
| 236 | Alsabrook O. D. | — | 0 | 0 | 2 | — | — |
| 237 | Amax Petroleum Corporation | — | 0 | 0 | 2 | — | — |
| 238 | Arden Oil Corp. | — | 0 | 0 | 2 | — | — |
| 239 | Black Arrow Operating LLC | — | 0 | 0 | 2 | — | — |
| 240 | Broyles Charles R. | — | 0 | 0 | 2 | — | — |
| 241 | C.B.C. Oil & Gas Inc. | — | 0 | 0 | 2 | — | — |
| 242 | Coquina Oil Corporation | — | 0 | 0 | 2 | — | — |
| 243 | Crosstex Services L.L.C. | — | 0 | 0 | 2 | — | — |
| 244 | Enr Operating LLC | — | 0 | 0 | 2 | — | — |
| 245 | Flat Top Operating LLC | — | 0 | 0 | 2 | — | — |
| 246 | Formation Resour Field Svcs LLC | — | 0 | 0 | 2 | — | — |
| 247 | Henderson & Erickson Inc. | — | 0 | 0 | 2 | — | — |
| 248 | Hess Seminole Assets LLC | — | 0 | 0 | 2 | — | — |
| 249 | IP Well Service LLC | — | 0 | 0 | 2 | — | — |
| 250 | Marker Energy Corporation | — | 0 | 0 | 2 | — | — |
| 251 | Montex Drilling Company LLC | — | 0 | 0 | 2 | — | — |
| 252 | Oneill Joseph I. Jr. | — | 0 | 0 | 2 | — | — |
| 253 | Orchard Storage Company LLC | — | 0 | 0 | 2 | — | — |
| 254 | Pennzoil Company | — | 0 | 0 | 2 | — | — |
| 255 | Pure Oilfield Waste Mgmt Inc. | — | 0 | 0 | 2 | — | — |
| 256 | Q Natural Resources LLC | — | 0 | 0 | 2 | — | — |
| 257 | Rawls Oil Services | — | 0 | 0 | 2 | — | — |
| 258 | Rogers S. K. Oil Inc. | — | 0 | 0 | 2 | — | — |
| 259 | Seminole Brine Station LLC | — | 0 | 0 | 2 | — | — |
| 260 | Sledge H. G. Inc. | — | 0 | 0 | 2 | — | — |
| 261 | Stallion Energy Inc. | — | 0 | 0 | 2 | — | — |
| 262 | Sundown Energy LP | — | 0 | 0 | 2 | — | — |
| 263 | Tejas Petroleum Resources LLC | — | 0 | 0 | 2 | — | — |
| 264 | Tejas Trucking Inc. | — | 0 | 0 | 2 | — | — |
| 265 | Williamson Ralph E. | — | 0 | 0 | 2 | — | — |
| 266 | Kinder Morgan Production Co LLC | — | 111 | 0 | 1 | — | — |
| 267 | Altura Energy Ltd. | — | 93 | 0 | 1 | — | — |
| 268 | Forest Oil Permian Corporation | — | 51 | 0 | 1 | — | — |
| 269 | Seaboard Oil Company | — | 44 | 0 | 1 | — | — |
| 270 | Jetta Operating Company, Inc. | — | 42 | 0 | 1 | — | — |
| 271 | Petrosource Production Co. L.P. | — | 28 | 0 | 1 | — | — |
| 272 | Lime Rock Resources II-a, L.P. | — | 24 | 0 | 1 | — | — |
| 273 | Triumph Exploration, Inc. | — | 23 | 0 | 1 | — | — |
| 274 | American Gas Storage, L.P. | — | 22 | 0 | 1 | — | — |
| 275 | Rogers, S. K. Oil Co. | — | 18 | 0 | 1 | — | — |
| 276 | Westar Transmission Company | — | 17 | 0 | 1 | — | — |
| 277 | Boyd, D. K. Oil & Gas Co. | — | 16 | 0 | 1 | — | — |
| 278 | Browning Oil Company, Inc. | — | 15 | 0 | 1 | — | — |
| 279 | Chaparral Energy, L.L.C. | — | 14 | 0 | 1 | — | — |
| 280 | Snow Oil & Gas Inc. | — | 13 | 0 | 1 | — | — |
| 281 | Geomark Resources, L.L.C. | — | 12 | 0 | 1 | — | — |
| 282 | Lynx Energy Company, Inc. | — | 11 | 0 | 1 | — | — |
| 283 | Indian Wells Oil Company | — | 10 | 0 | 1 | — | — |
| 284 | Estoril Producing Corporation | — | 9 | 0 | 1 | — | — |
| 285 | Sha-Jam Operating Corp. | — | 9 | 0 | 1 | — | — |
| 286 | Getty Oil Co. | — | 8 | 0 | 1 | — | — |
| 287 | Tri-Service Drilling Co. | — | 8 | 0 | 1 | — | — |
| 288 | Forge Energy, LLC | — | 7 | 0 | 1 | — | — |
| 289 | Oil Development Company of Texas | — | 7 | 0 | 1 | — | — |
| 290 | Petro-Lewis Corporation | — | 7 | 0 | 1 | — | — |
| 291 | Cities Service Oil & Gas Corp. | — | 6 | 0 | 1 | — | — |
| 292 | Hilliard Oil & Gas, Inc. | — | 6 | 0 | 1 | — | — |
| 293 | Miltex Oil Company | — | 6 | 0 | 1 | — | — |
| 294 | Page Energy | — | 6 | 0 | 1 | — | — |
| 295 | Yates, Harvey E. Co. | — | 6 | 0 | 1 | — | — |
| 296 | Anschutz Corporation, The | — | 5 | 0 | 1 | — | — |
| 297 | Tmbr/Sharp Drilling, Inc. | — | 5 | 0 | 1 | — | — |
| 298 | Cox, John L. | — | 4 | 0 | 1 | — | — |
| 299 | Great Texas Crude Inc. | — | 4 | 0 | 1 | — | — |
| 300 | Manzano Oil Corporation | — | 4 | 0 | 1 | — | — |