| 1 | Zoller & Danneberg Expl. Ltd | — | 0 | 0 | 459 | — | — |
| 2 | P.o.&g. Operating LLC | — | 0 | 0 | 411 | — | — |
| 3 | Blue Ridge Operating LLC | — | 2 | 0 | 315 | — | — |
| 4 | Hamman Oil & Refining Company | — | 102 | 0 | 202 | — | — |
| 5 | Jetta Operating Company, Inc. | — | 95 | 0 | 133 | — | — |
| 6 | CML Exploration, LLC | — | 19 | 0 | 116 | — | — |
| 7 | Atlas Oil & Gas Exploration, LLC | — | 1 | 0 | 98 | — | — |
| 8 | ZK Petroleum Co., L.L.C. | — | 57 | 0 | 88 | — | — |
| 9 | Exxon Corp. | — | 450 | 0 | 80 | — | — |
| 10 | Hilcorp Energy Company | — | 10 | 0 | 57 | — | — |
| 11 | McGowan Working Partners, Inc. | — | 2 | 0 | 55 | — | — |
| 12 | Geiselman, Grover J. | — | 38 | 0 | 36 | — | — |
| 13 | OG Co., Inc. | — | 1 | 0 | 31 | — | — |
| 14 | Maverick Prod. Co., Inc. | — | 528 | 0 | 25 | — | — |
| 15 | Goldking Prod. Co. | — | 29 | 0 | 25 | — | — |
| 16 | Goldston Oil Corp. | — | 13 | 0 | 23 | — | — |
| 17 | Gulf Oil Corp. | — | 110 | 0 | 22 | — | — |
| 18 | Summit Oil Co. | — | 0 | 0 | 21 | — | — |
| 19 | Otex Resources LLC | — | 0 | 0 | 17 | — | — |
| 20 | Viceroy Petroleum, LP | — | 49 | 0 | 16 | — | — |
| 21 | American Energy Op. Corp.,the | — | 40 | 0 | 15 | — | — |
| 22 | Enstor Katy Storage & Transp LP | — | 3 | 0 | 15 | — | — |
| 23 | Hurricane Oil and Gas Co. Inc. | — | 0 | 0 | 15 | — | — |
| 24 | Patterson Petroleum LP | — | 42 | 0 | 14 | — | — |
| 25 | Sue-Ann Operating, L.C. | — | 35 | 0 | 14 | — | — |
| 26 | Ramco Oil Co. | — | 0 | 0 | 14 | — | — |
| 27 | Denbury Onshore, LLC | — | 22 | 0 | 13 | — | — |
| 28 | Davis, Walter V. | — | 7 | 0 | 13 | — | — |
| 29 | Will-Drill Production Co., Inc. | — | 1 | 0 | 13 | — | — |
| 30 | Eca Holdings, L.P. | — | 50 | 0 | 12 | — | — |
| 31 | Silverbrook Operating LLC | — | 0 | 0 | 12 | — | — |
| 32 | Chevron U. S. A. Inc. | — | 66 | 0 | 11 | — | — |
| 33 | Continental Oil Company | — | 0 | 0 | 11 | — | — |
| 34 | Hughes William & Co. | — | 0 | 0 | 11 | — | — |
| 35 | Roy Jackson Energy Operating LL | — | 0 | 0 | 11 | — | — |
| 36 | Mercantile Oil & Gas Prod. Corp. | — | 15 | 0 | 10 | — | — |
| 37 | Denovo Oil & Gas, Inc. | — | 2 | 0 | 10 | — | — |
| 38 | RBD-Trammell Operating Agency | — | 2 | 0 | 10 | — | — |
| 39 | Atmic, Inc. | — | 30 | 0 | 9 | — | — |
| 40 | Plantation Operating Co., Inc. | — | 2 | 0 | 9 | — | — |
| 41 | Southeastern Pipe Line Company | — | 13 | 0 | 8 | — | — |
| 42 | First Solid Energy Group, LP | — | 11 | 0 | 8 | — | — |
| 43 | Pride Energy Company | — | 2 | 0 | 8 | — | — |
| 44 | Mid-Coast Well Service Inc. | — | 0 | 0 | 8 | — | — |
| 45 | Oak Energy LLC | — | 0 | 0 | 8 | — | — |
| 46 | Proline Energy Resources Inc | — | 0 | 0 | 8 | — | — |
| 47 | Conocophillips Company | — | 38 | 0 | 7 | — | — |
| 48 | Cobra Oil & Gas Corporation | — | 20 | 0 | 7 | — | — |
| 49 | Tee Operating Co. | — | 18 | 0 | 7 | — | — |
| 50 | Oblaen Resources LLC | — | 5 | 0 | 7 | — | — |
| 51 | Brummett J. O. | — | 0 | 0 | 7 | — | — |
| 52 | Cavalry Resources LLC | — | 0 | 0 | 7 | — | — |
| 53 | McRae Oil Corporation | — | 0 | 0 | 7 | — | — |
| 54 | Vanco Oil & Gas Corp. | — | 0 | 0 | 7 | — | — |
| 55 | Blue Ridge Operating Company,inc | — | 45 | 0 | 6 | — | — |
| 56 | Seagull Resources, Inc. | — | 32 | 0 | 6 | — | — |
| 57 | Greco Operating LLC | — | 0 | 0 | 6 | — | — |
| 58 | Sequoia Oil Company | — | 0 | 0 | 6 | — | — |
| 59 | Phillips Petroleum Company | — | 56 | 0 | 5 | — | — |
| 60 | Exxon Mobil Corporation | — | 13 | 0 | 5 | — | — |
| 61 | Devon Energy Operating Co., L.P. | — | 3 | 0 | 5 | — | — |
| 62 | Hagen-Greenbriar Expl. Corp. | — | 3 | 0 | 5 | — | — |
| 63 | Bejo Corporation | — | 2 | 0 | 5 | — | — |
| 64 | Dome Stripper Enterprises, Inc. | — | 1 | 0 | 5 | — | — |
| 65 | Gaither Petroleum Corporation | — | 1 | 0 | 5 | — | — |
| 66 | Atlas Operating LLC | — | 0 | 0 | 5 | — | — |
| 67 | B & M Operating Co. Inc. | — | 0 | 0 | 5 | — | — |
| 68 | KZ Global Energy LLC | — | 0 | 0 | 5 | — | — |
| 69 | Mobpar Inc. | — | 0 | 0 | 5 | — | — |
| 70 | Swearingen W. P. | — | 0 | 0 | 5 | — | — |
| 71 | Well-Co Solutions LLC | — | 0 | 0 | 5 | — | — |
| 72 | Cypress E & P Corporation | — | 31 | 0 | 4 | — | — |
| 73 | Ballard Exploration Company,inc. | — | 21 | 0 | 4 | — | — |
| 74 | Lgdc Corporation | — | 14 | 0 | 4 | — | — |
| 75 | Quintana Pet. Corp. | — | 13 | 0 | 4 | — | — |
| 76 | Brinkerhoff-Turner Co., Ltd. | — | 10 | 0 | 4 | — | — |
| 77 | Harrison Interests, Ltd. | — | 10 | 0 | 4 | — | — |
| 78 | Zinn Petroleum Co. | — | 7 | 0 | 4 | — | — |
| 79 | Magnum Producing, LP | — | 6 | 0 | 4 | — | — |
| 80 | Engelke, R. H. | — | 4 | 0 | 4 | — | — |
| 81 | Bridwell Oil Co. | — | 2 | 0 | 4 | — | — |
| 82 | United Salt Blue Ridge Hldgs,llc | — | 1 | 0 | 4 | — | — |
| 83 | Big Creek Operating Company LLC | — | 0 | 0 | 4 | — | — |
| 84 | Cherokee Service Company Inc. | — | 0 | 0 | 4 | — | — |
| 85 | General Crude Oil Co. | — | 0 | 0 | 4 | — | — |
| 86 | Humble Oil & Refining Co. | — | 0 | 0 | 4 | — | — |
| 87 | Lewis Operating Company | — | 0 | 0 | 4 | — | — |
| 88 | Lindow Oil & Gas LLC | — | 0 | 0 | 4 | — | — |
| 89 | Mastodon Operating Company LLC | — | 0 | 0 | 4 | — | — |
| 90 | Texas Onshore Energy Inc. | — | 0 | 0 | 4 | — | — |
| 91 | Western Gas Resources Storage | — | 35 | 0 | 3 | — | — |
| 92 | Petro-Lewis Corporation | — | 16 | 0 | 3 | — | — |
| 93 | Garrison Ltd. | — | 11 | 0 | 3 | — | — |
| 94 | Arco Oil & Gas Co. | — | 9 | 0 | 3 | — | — |
| 95 | Jackson Exploration, Inc. | — | 7 | 0 | 3 | — | — |
| 96 | Spike Drilling & Operating, LLC | — | 7 | 0 | 3 | — | — |
| 97 | Barnhart Co. | — | 6 | 0 | 3 | — | — |
| 98 | Acco Oil & Gas Company | — | 4 | 0 | 3 | — | — |
| 99 | McCarthy, Glenn H. | — | 4 | 0 | 3 | — | — |
| 100 | Mid American Operating Company | — | 3 | 0 | 3 | — | — |
| 101 | Pecos Petroleum Company | — | 3 | 0 | 3 | — | — |
| 102 | Tuskar (Texas), Inc. | — | 3 | 0 | 3 | — | — |
| 103 | Bopco, L.P. | — | 2 | 0 | 3 | — | — |
| 104 | Oft Inc. | — | 1 | 0 | 3 | — | — |
| 105 | Chrisco Oil Company | — | 0 | 0 | 3 | — | — |
| 106 | Cooper W. J. | — | 0 | 0 | 3 | — | — |
| 107 | Geiselman Grover J | — | 0 | 0 | 3 | — | — |
| 108 | Lucky Lad Energy LLC | — | 0 | 0 | 3 | — | — |
| 109 | Sanla Oil & Gas Operators Inc. | — | 0 | 0 | 3 | — | — |
| 110 | Sourthern Oil Well Service Co. | — | 0 | 0 | 3 | — | — |
| 111 | Tomahawk Petroleum | — | 0 | 0 | 3 | — | — |
| 112 | Union Producing Co. | — | 0 | 0 | 3 | — | — |
| 113 | United Specialties Co. | — | 0 | 0 | 3 | — | — |
| 114 | Vintage Petroleum Inc. | — | 0 | 0 | 3 | — | — |
| 115 | West Neva Watkins | — | 0 | 0 | 3 | — | — |
| 116 | W. R. G. Oil & Gas Inc. | — | 0 | 0 | 3 | — | — |
| 117 | Bass Enterprises Production Co. | — | 30 | 0 | 2 | — | — |
| 118 | Irish Oil & Gas Co. | — | 16 | 0 | 2 | — | — |
| 119 | Property Development Group, Inc. | — | 11 | 0 | 2 | — | — |
| 120 | Horizon Prod. and Operating, LLC | — | 9 | 0 | 2 | — | — |
| 121 | Partners Oil Company | — | 9 | 0 | 2 | — | — |
| 122 | Texaco Inc. | — | 8 | 0 | 2 | — | — |
| 123 | Cabot Petroleum Corporation | — | 6 | 0 | 2 | — | — |
| 124 | Zenith Exploration Co., Inc. | — | 6 | 0 | 2 | — | — |
| 125 | Decker Operating Co., L.L.C. | — | 5 | 0 | 2 | — | — |
| 126 | Harrison, Dan J. Iii&bruce F. | — | 5 | 0 | 2 | — | — |
| 127 | Texas Oil & Gas Corp. | — | 5 | 0 | 2 | — | — |
| 128 | Acoma Oil Corporation | — | 3 | 0 | 2 | — | — |
| 129 | Aspect Energy, LLC | — | 3 | 0 | 2 | — | — |
| 130 | Fuller, Ancil T. | — | 3 | 0 | 2 | — | — |
| 131 | Hardwick Oil Company | — | 3 | 0 | 2 | — | — |
| 132 | DJ Exploration, Inc. | — | 2 | 0 | 2 | — | — |
| 133 | Dynamic Production, Inc. | — | 2 | 0 | 2 | — | — |
| 134 | Martin Oil & Gas Co. | — | 2 | 0 | 2 | — | — |
| 135 | Mustang Exploration Co., Inc. | — | 2 | 0 | 2 | — | — |
| 136 | Rio Bravo Oil Company | — | 2 | 0 | 2 | — | — |
| 137 | Sonat Exploration Co. - Houston | — | 2 | 0 | 2 | — | — |
| 138 | Sperry-Mac Oil Co. | — | 2 | 0 | 2 | — | — |
| 139 | Thompson, John R. Operating, Inc | — | 2 | 0 | 2 | — | — |
| 140 | Amax Oil & Gas Inc. | — | 1 | 0 | 2 | — | — |
| 141 | Pennzoil Producing Co. | — | 1 | 0 | 2 | — | — |
| 142 | Bayport Operating Inc. | — | 0 | 0 | 2 | — | — |
| 143 | Big Four Drilling Co. | — | 0 | 0 | 2 | — | — |
| 144 | Caddo Oil Company Inc. | — | 0 | 0 | 2 | — | — |
| 145 | Chart Room Investments | — | 0 | 0 | 2 | — | — |
| 146 | Coastal States Gas Prod. Co. | — | 0 | 0 | 2 | — | — |
| 147 | Coffee John B. | — | 0 | 0 | 2 | — | — |
| 148 | Crusader Resources LC | — | 0 | 0 | 2 | — | — |
| 149 | D.J. Oilfield Salvage Inc. | — | 0 | 0 | 2 | — | — |
| 150 | Doughty & Pickett | — | 0 | 0 | 2 | — | — |
| 151 | Dstj Corporation | — | 0 | 0 | 2 | — | — |
| 152 | Eagleridge Operating LLC | — | 0 | 0 | 2 | — | — |
| 153 | Energy Corporation of America | — | 0 | 0 | 2 | — | — |
| 154 | Evolution Resources LLC | — | 0 | 0 | 2 | — | — |
| 155 | Fossil Oil Operating LLC | — | 0 | 0 | 2 | — | — |
| 156 | Hatten Oil Co. | — | 0 | 0 | 2 | — | — |
| 157 | Lakehills Production Inc. | — | 0 | 0 | 2 | — | — |
| 158 | Low-End Oil LLC | — | 0 | 0 | 2 | — | — |
| 159 | McKenzie Production Company | — | 0 | 0 | 2 | — | — |
| 160 | Oil & Gas Co. The | — | 0 | 0 | 2 | — | — |
| 161 | Operator P-5 Not on File | — | 0 | 0 | 2 | — | — |
| 162 | Prudhomme W.W. | — | 0 | 0 | 2 | — | — |
| 163 | Russell Otis | — | 0 | 0 | 2 | — | — |
| 164 | Salmon Corp. | — | 0 | 0 | 2 | — | — |
| 165 | Western Gulf Oil & Gas Inc. | — | 0 | 0 | 2 | — | — |
| 166 | Oil & Gas Investments, Inc. | — | 22 | 0 | 1 | — | — |
| 167 | Coastal Minerals, Inc. | — | 16 | 0 | 1 | — | — |
| 168 | Hanson Minerals Co. | — | 14 | 0 | 1 | — | — |
| 169 | Tartan Oil & Gas | — | 13 | 0 | 1 | — | — |
| 170 | Anschutz Exploration Corporation | — | 12 | 0 | 1 | — | — |
| 171 | Amax Petroleum Corporation | — | 10 | 0 | 1 | — | — |
| 172 | Resaca Resources, L.L.C. | — | 10 | 0 | 1 | — | — |
| 173 | Sue-Ann Production Company | — | 10 | 0 | 1 | — | — |
| 174 | Smith Petroleum Company | — | 9 | 0 | 1 | — | — |
| 175 | Hollis Oil Co. | — | 8 | 0 | 1 | — | — |
| 176 | Logue and Patterson Inc. | — | 7 | 0 | 1 | — | — |
| 177 | Mitchell Energy Company L.P. | — | 7 | 0 | 1 | — | — |
| 178 | Bluebonnett Exploration Company | — | 6 | 0 | 1 | — | — |
| 179 | Coastline Exploration, Inc. | — | 6 | 0 | 1 | — | — |
| 180 | Boling Production Co., Inc. | — | 5 | 0 | 1 | — | — |
| 181 | Venus Oil Company | — | 5 | 0 | 1 | — | — |
| 182 | Hanson Production Company | — | 4 | 0 | 1 | — | — |
| 183 | Paragon Resources, Inc. | — | 4 | 0 | 1 | — | — |
| 184 | Pure Energy Company | — | 4 | 0 | 1 | — | — |
| 185 | Yuma Petroleum Company | — | 4 | 0 | 1 | — | — |
| 186 | Chapman, Roger Inc. | — | 3 | 0 | 1 | — | — |
| 187 | Cimarex Energy Co. | — | 3 | 0 | 1 | — | — |
| 188 | Crest Resources & Expl. Corp. | — | 3 | 0 | 1 | — | — |
| 189 | Duncan, J. Walter Jr. | — | 3 | 0 | 1 | — | — |
| 190 | Jefferson Energy Co., Inc. | — | 3 | 0 | 1 | — | — |
| 191 | Mark Producing, Inc. | — | 3 | 0 | 1 | — | — |
| 192 | Pcu, Inc. of Texas | — | 3 | 0 | 1 | — | — |
| 193 | Boston Oil Limited 1973 | — | 2 | 0 | 1 | — | — |
| 194 | Brayton Operating Corp. | — | 2 | 0 | 1 | — | — |
| 195 | Finley Resources, Inc. | — | 2 | 0 | 1 | — | — |
| 196 | Fulshear Oil & Gas Partners LP | — | 2 | 0 | 1 | — | — |
| 197 | Gasper Rice Resources, Ltd. | — | 2 | 0 | 1 | — | — |
| 198 | Gordy Oil Company | — | 2 | 0 | 1 | — | — |
| 199 | Kaiser-Francis Oil Company | — | 2 | 0 | 1 | — | — |
| 200 | Pel-Tex Oil Company, Inc. | — | 2 | 0 | 1 | — | — |
| 201 | Smith Petroleum & Hershey Oil | — | 2 | 0 | 1 | — | — |
| 202 | Texas Eastern Exploration Co. | — | 2 | 0 | 1 | — | — |
| 203 | Zinke & Trumbo, Inc. | — | 2 | 0 | 1 | — | — |
| 204 | Adams Resources Expl. Corp. | — | 1 | 0 | 1 | — | — |
| 205 | Atapco | — | 1 | 0 | 1 | — | — |
| 206 | Brown & McKenzie, Inc. | — | 1 | 0 | 1 | — | — |
| 207 | Camden Oil & Gas, Inc. | — | 1 | 0 | 1 | — | — |
| 208 | Clipper Operating Co., Inc. | — | 1 | 0 | 1 | — | — |
| 209 | Davis Oil Company | — | 1 | 0 | 1 | — | — |
| 210 | Delfin Operating, LLC | — | 1 | 0 | 1 | — | — |
| 211 | Devon Energy Corporation(nevada) | — | 1 | 0 | 1 | — | — |
| 212 | EL Reno Energy, LLC | — | 1 | 0 | 1 | — | — |
| 213 | Etoco, L.P. | — | 1 | 0 | 1 | — | — |
| 214 | Flare Resources Inc. | — | 1 | 0 | 1 | — | — |
| 215 | Forest Oil Corporation | — | 1 | 0 | 1 | — | — |
| 216 | F-W Oil Interests, Inc. | — | 1 | 0 | 1 | — | — |
| 217 | Josey, Lenoir M., Inc. | — | 1 | 0 | 1 | — | — |
| 218 | Kebo Oil & Gas, Inc. | — | 1 | 0 | 1 | — | — |
| 219 | Retlaw Oil & Gas, Inc. | — | 1 | 0 | 1 | — | — |
| 220 | Royal Production Company, Inc. | — | 1 | 0 | 1 | — | — |
| 221 | Senora Resources, Inc. | — | 1 | 0 | 1 | — | — |
| 222 | Texron Operating, LLC | — | 1 | 0 | 1 | — | — |
| 223 | XB Energy Services, Inc. | — | 1 | 0 | 1 | — | — |
| 224 | Zachry Exploration, LLC | — | 1 | 0 | 1 | — | — |
| 225 | AA Delta Exploration Inc. | — | 0 | 0 | 1 | — | — |
| 226 | Alexander Land & Dev. Co. Inc. | — | 0 | 0 | 1 | — | — |
| 227 | Amrwr LLC | — | 0 | 0 | 1 | — | — |
| 228 | Anderson Reece B. | — | 0 | 0 | 1 | — | — |
| 229 | Apache Exploration Inc. (I) | — | 0 | 0 | 1 | — | — |
| 230 | Appling R. C. Jr. | — | 0 | 0 | 1 | — | — |
| 231 | Arrington Oil&gas Operating LLC | — | 0 | 0 | 1 | — | — |
| 232 | Aztec Exploration Inc. | — | 0 | 0 | 1 | — | — |
| 233 | Baker Atlas | — | 0 | 0 | 1 | — | — |
| 234 | Brown al A. | — | 0 | 0 | 1 | — | — |
| 235 | Camoil Inc. | — | 0 | 0 | 1 | — | — |
| 236 | Carter-Langham Inc. | — | 0 | 0 | 1 | — | — |
| 237 | Carter Trull & Thompson | — | 0 | 0 | 1 | — | — |
| 238 | Casey Carl | — | 0 | 0 | 1 | — | — |
| 239 | Cauble Enterprises | — | 0 | 0 | 1 | — | — |
| 240 | Chadwick Bob J. | — | 0 | 0 | 1 | — | — |
| 241 | Chaparral Energy L.L.C. | — | 0 | 0 | 1 | — | — |
| 242 | Chapman Energy Inc. | — | 0 | 0 | 1 | — | — |
| 243 | Christensen & Matthews | — | 0 | 0 | 1 | — | — |
| 244 | Cornett James E. II | — | 0 | 0 | 1 | — | — |
| 245 | Cox Edwin L. | — | 0 | 0 | 1 | — | — |
| 246 | Cox & Perkins Exploration Inc. | — | 0 | 0 | 1 | — | — |
| 247 | Crestmont Petroleum Company | — | 0 | 0 | 1 | — | — |
| 248 | Etaba Operating Company | — | 0 | 0 | 1 | — | — |
| 249 | Fernwood Land and Production Co. | — | 0 | 0 | 1 | — | — |
| 250 | First United Oil & Gas Corp. | — | 0 | 0 | 1 | — | — |
| 251 | Five-Jab Inc. | — | 0 | 0 | 1 | — | — |
| 252 | Francis James C. | — | 0 | 0 | 1 | — | — |
| 253 | French L. D. | — | 0 | 0 | 1 | — | — |
| 254 | Fuller James B. & Assoc. | — | 0 | 0 | 1 | — | — |
| 255 | Great Northern Energy Inc | — | 0 | 0 | 1 | — | — |
| 256 | Gulf Coast Petroleum Service Co. | — | 0 | 0 | 1 | — | — |
| 257 | Hallwood Energy Corporation | — | 0 | 0 | 1 | — | — |
| 258 | Harrison Dan J Iii&bruce F Est | — | 0 | 0 | 1 | — | — |
| 259 | H-M Resource Management Inc. | — | 0 | 0 | 1 | — | — |
| 260 | Howard Lewis B. | — | 0 | 0 | 1 | — | — |
| 261 | Hydrocarbons Intl. Drilling Corp | — | 0 | 0 | 1 | — | — |
| 262 | Ipact | — | 0 | 0 | 1 | — | — |
| 263 | Jantex Oil Company | — | 0 | 0 | 1 | — | — |
| 264 | Johnson Testers - a Div. of Swsc | — | 0 | 0 | 1 | — | — |
| 265 | JSB Petroleum | — | 0 | 0 | 1 | — | — |
| 266 | Kelly Michael V. | — | 0 | 0 | 1 | — | — |
| 267 | Kelton B.J. | — | 0 | 0 | 1 | — | — |
| 268 | Lamay Corporation | — | 0 | 0 | 1 | — | — |
| 269 | Lemon Richard F. Jr. | — | 0 | 0 | 1 | — | — |
| 270 | Lozano Oil Corporation | — | 0 | 0 | 1 | — | — |
| 271 | LTX Productions Inc. | — | 0 | 0 | 1 | — | — |
| 272 | Mengden W. Estate OF | — | 0 | 0 | 1 | — | — |
| 273 | Meyers-Lasher Inc. | — | 0 | 0 | 1 | — | — |
| 274 | Naylor H. M. Oil Company | — | 0 | 0 | 1 | — | — |
| 275 | Oilkare Inc. | — | 0 | 0 | 1 | — | — |
| 276 | Ows Energy Inc. | — | 0 | 0 | 1 | — | — |
| 277 | Pace Production Co. | — | 0 | 0 | 1 | — | — |
| 278 | Petrotex Inc. | — | 0 | 0 | 1 | — | — |
| 279 | Phillips J. G. Jr. | — | 0 | 0 | 1 | — | — |
| 280 | Prudential Drilling Company | — | 0 | 0 | 1 | — | — |
| 281 | P.R.W. Engergy Inc. | — | 0 | 0 | 1 | — | — |
| 282 | Quicksilver Resources Inc. | — | 0 | 0 | 1 | — | — |
| 283 | Rodeo Resources L.L.C. | — | 0 | 0 | 1 | — | — |
| 284 | Sawtooth Inc. | — | 0 | 0 | 1 | — | — |
| 285 | Saxet Exploration Ent. Co. Inc. | — | 0 | 0 | 1 | — | — |
| 286 | Scurlock Oil Company | — | 0 | 0 | 1 | — | — |
| 287 | Shoreham Oil & Gas Company Inc. | — | 0 | 0 | 1 | — | — |
| 288 | Skelly Oil Co. | — | 0 | 0 | 1 | — | — |
| 289 | Standard Oil & Gas Operating Co. | — | 0 | 0 | 1 | — | — |
| 290 | Stone & Webster Oil Company Inc | — | 0 | 0 | 1 | — | — |
| 291 | Sue-Ann Oil & Gas Company | — | 0 | 0 | 1 | — | — |
| 292 | Tenneco Oil Co. | — | 0 | 0 | 1 | — | — |
| 293 | Tetra Applied Technologies L.P. | — | 0 | 0 | 1 | — | — |
| 294 | Texas/Arkansas Petroleum Company | — | 0 | 0 | 1 | — | — |
| 295 | Texas Crude Oil Co. | — | 0 | 0 | 1 | — | — |
| 296 | Texas Eastern Transmission Corp. | — | 0 | 0 | 1 | — | — |
| 297 | Tondu Energy Corp. | — | 0 | 0 | 1 | — | — |
| 298 | United Engineering Service Inc. | — | 0 | 0 | 1 | — | — |
| 299 | Wadsworth Oil Co. | — | 0 | 0 | 1 | — | — |
| 300 | Patterson Petroleum, Inc. | — | 38 | 0 | 0 | — | — |