U.S. Regulatory Compliance Projects
Ryder Scott is experienced in reserves evaluations spanning the world. This includes reporting guidelines and regulations for a variety of organizations and regulatory bodies. Regardless of where in the world a company’s oil and gas assets reside or where the company conducts its business, if the company offers securities for sale to the public in the United States market (exchange), they must conform to U.S. Security and Exchange Commission (SEC) standards. The SEC’s mission is primarily to protect investors; maintain fair, orderly and efficient markets; and facilitate capital formation. To this end, the SEC requires companies, to disclose meaningful financials such that all investors will have access to certain basic facts about an investment prior to buying it, and so long as they hold it. Also, search SEC documents at SEC Seeker. The public is informed about a company’s oil and gas reserves through the filing of certain SEC Forms which are made publicly available, the most common of which include the following:
- Form 10-K
- An annual report that provides a comprehensive overview of a company’s business and financial condition. Companies domiciled in the US use this form.
- Form 20-F
- An annual report which serves a purpose similar to that of Form 10-K. Foreign, private issuers use this form.
- Form 40-F
- An annual report which serves a purpose similar to that of Form 10-K. Companies domiciled in Canada use this form.
- Form S-1, S-3 and S-8
- Registration form for new securities
Ryder Scott enjoys a significant and long-standing tradition of conducting reserves evaluations which conform to SEC regulations. This experience is demonstrated by the large number of references to Ryder Scott in these publicly available documents. All SEC filings are available on the SEC’s website(https://www.sec.gov/) and can be found in their Electronic Data-Gathering, and Retrieval System EDGAR. To see specifically Ryder Scott’s extensive experience, you can search for “Ryder Scott” on EDGAR using the “full text search” feature here (note: only last four years are available when using the full text search). To see our experience beyond the last four years, see the table below which lists the publicly available 10-K and 20-F annual reports that reference Ryder Scott from 2005 to present.
| Ref. No. | Company | Filing Date | Form |
| 1 | Adams Resources | 3/12/2018 | 10-K |
| 2 | Alta Mesa | 3/29/2018 | 10-K |
| 3 | Apache | 2/23/2018 | 10-K |
| 4 | Apache Offshore Investment | 2/23/2018 | 10-K |
| 5 | Baytex Energy | 3/9/2018 | 40-F |
| 6 | Bellatrix Exploration | 3/14/2018 | 40-F |
| 7 | Carrizo Oil | 2/28/2018 | 10-K |
| 8 | Chaparral Energy | 3/29/2018 | 10-K |
| 9 | Chesapeake Energy | 2/22/2018 | 10-K |
| 10 | CNOOC | 4/19/2018 | 20-F |
| 11 | CNOOC | 4/19/2018 | 20-F/A |
| 12 | Continental Resources | 2/21/2018 | 10-K |
| 13 | Diamondback Energy | 2/15/2018 | 10-K |
| 14 | ECAMarcellus | 3/20/2018 | 10-K |
| 15 | Eco PetrolSA | 4/26/2018 | 20-F/A |
| 16 | Eco PetrolSA | 4/19/2018 | 20-F |
| 17 | Energen | 2/28/2018 | 10-K |
| 18 | Eni SpA | 4/6/2018 | 20-F |
| 19 | EPEnergy | 3/2/2018 | 10-K |
| 20 | EQT | 2/15/2018 | 10-K |
| 21 | Exco Resources | 4/30/2018 | 10-K/A |
| 22 | Exco Resources | 3/15/2018 | 10-K |
| 23 | Goodrich Petroleum | 3/2/2018 | 10-K |
| 24 | Kosmos Energy | 2/26/2018 | 10-K |
| 25 | Laredo Petroleum | 2/15/2018 | 10-K |
| 26 | Newfield Exploration | 2/20/2018 | 10-K |
| 27 | Northern Oil Gas | 2/23/2018 | 10-K |
| 28 | Occidental Petroleum | 2/23/2018 | 10-K |
| 29 | PDC | 5/1/2018 | 10-K/A |
| 30 | PDC | 2/27/2018 | 10-K |
| 31 | Pemex | 4/30/2018 | 20-F |
| 32 | Petro ChinaCNPC | 4/27/2018 | 20-F |
| 33 | Petro Quest Energy | 4/27/2018 | 10-K/A |
| 34 | Petro Quest Energy | 3/29/2018 | 10-K/A |
| 35 | Petro Quest Energy | 3/8/2018 | 10-K |
| 36 | Prime Energy | 4/17/2018 | 10-K |
| 37 | QEPResources | 2/28/2018 | 10-K |
| 38 | REXEnergy | 4/13/2018 | 10-K |
| 39 | Sanchez Energy | 3/1/2018 | 10-K |
| 40 | Sanchez Production | 3/12/2018 | 10-K |
| 41 | Sand Ridge Energy | 4/30/2018 | 10-K/A |
| 42 | Sand Ridge Energy | 2/22/2018 | 10-K |
| 43 | SMEnergy StMary Land | 2/21/2018 | 10-K |
| 44 | Unit | 2/27/2018 | 10-K |
| 45 | Viper Energy | 2/16/2018 | 10-K/A |
| 46 | Viper Energy | 2/7/2018 | 10-K |
| 47 | Adams Resources | 3/31/2017 | 10-K |
| 48 | Alta Mesa | 3/30/2017 | 10-K |
| 49 | Apache | 2/24/2017 | 10-K |
| 50 | Apache Offshore Investment | 2/24/2017 | 10-K |
| 51 | Baytex Energy | 3/8/2017 | 40-F |
| 52 | Carrizo Oil | 2/27/2017 | 10-K |
| 53 | Chaparral Energy | 3/31/2017 | 10-K |
| 54 | Chesapeake Energy | 3/3/2017 | 10-K |
| 55 | Clayton Williams Energy | 3/2/2017 | 10-K |
| 56 | CNOOC | 4/21/2017 | 20-F |
| 57 | Continental Resources | 2/22/2017 | 10-K |
| 58 | Diamondback Energy | 2/15/2017 | 10-K |
| 59 | ECAMarcellus | 3/10/2017 | 10-K |
| 60 | Eco PetrolSA | 5/31/2017 | 20-F |
| 61 | Energen | 2/28/2017 | 10-K |
| 62 | Eni SpA | 3/22/2017 | 20-F |
| 63 | EPEnergy | 3/3/2017 | 10-K |
| 64 | EQT | 2/9/2017 | 10-K |
| 65 | Exco Resources | 3/16/2017 | 10-K |
| 66 | Goodrich Petroleum | 3/3/2017 | 10-K |
| 67 | Gulfport Energy | 2/15/2017 | 10-K |
| 68 | Halcon Resources | 3/1/2017 | 10-K |
| 69 | Kosmos Energy | 2/27/2017 | 10-K |
| 70 | Laredo Petroleum | 2/16/2017 | 10-K |
| 71 | Marathon Oil | 2/24/2017 | 10-K |
| 72 | Memorial Production Partners | 3/10/2017 | 10-K |
| 73 | Newfield Exploration | 2/21/2017 | 10-K |
| 74 | Northern Oil Gas | 3/2/2017 | 10-K |
| 75 | Occidental Petroleum | 2/23/2017 | 10-K |
| 76 | PDC | 2/28/2017 | 10-K |
| 77 | Pemex | 5/1/2017 | 20-F |
| 78 | Petro ChinaCNPC | 4/27/2017 | 20-F |
| 79 | Petro Quest Energy | 3/9/2017 | 10-K |
| 80 | Prime Energy | 4/18/2017 | 10-K |
| 81 | QEPResources | 2/22/2017 | 10-K |
| 82 | Sanchez Energy | 2/27/2017 | 10-K |
| 83 | Sanchez Production | 3/28/2017 | 10-K |
| 84 | Sand Ridge Energy | 3/3/2017 | 10-K |
| 85 | SMEnergy StMary Land | 2/23/2017 | 10-K |
| 86 | Synergy Resources | 2/23/2017 | 10-K |
| 87 | Unit | 2/28/2017 | 10-K |
| 88 | Victory Energy | 3/31/2017 | 10-K |
| 89 | Viper Energy | 2/15/2017 | 10-K |
| 90 | Adams Resources | 3/11/2016 | 10-K |
| 91 | Alta Mesa | 3/29/2016 | 10-K |
| 92 | Apache | 2/26/2016 | 10-K |
| 93 | Apache Offshore Investment | 2/26/2016 | 10-K |
| 94 | Baytex Energy | 3/17/2016 | 40-F |
| 95 | Carrizo Oil | 2/22/2016 | 10-K |
| 96 | Chaparral Energy | 3/30/2016 | 10-K |
| 97 | Chesapeake Energy | 2/25/2016 | 10-K |
| 98 | Chesapeake Granite Wash Trust | 3/10/2016 | 10-K |
| 99 | Clayton Williams Energy | 3/24/2016 | 10-K |
| 100 | CNOOC | 4/21/2016 | 20-F |
| 101 | Continental Resources | 2/24/2016 | 10-K |
| 102 | Diamondback Energy | 2/19/2016 | 10-K |
| 103 | ECAMarcellus | 3/11/2016 | 10-K |
| 104 | Eco PetrolSA | 4/29/2016 | 20-F |
| 105 | Energen | 2/16/2016 | 10-K |
| 106 | Eni SpA | 4/12/2016 | 20-F |
| 107 | EPEnergy | 2/22/2016 | 10-K |
| 108 | EQT | 2/11/2016 | 10-K |
| 109 | Exco Resources | 3/2/2016 | 10-K |
| 110 | Goodrich Petroleum | 4/29/2016 | 10-K/A |
| 111 | Goodrich Petroleum | 3/30/2016 | 10-K |
| 112 | Gulfport Energy | 2/19/2016 | 10-K |
| 113 | Halcon Resources | 4/25/2016 | 10-K/A |
| 114 | Harvest Natural Resources | 3/29/2016 | 10-K |
| 115 | Kosmos Energy | 2/22/2016 | 10-K |
| 116 | Laredo Petroleum | 2/17/2016 | 10-K |
| 117 | Marathon Oil | 2/25/2016 | 10-K |
| 118 | Memorial Production Partners | 2/24/2016 | 10-K |
| 119 | Memorial Resource | 2/24/2016 | 10-K |
| 120 | Newfield Exploration | 2/24/2016 | 10-K |
| 121 | Northern Oil Gas | 3/3/2016 | 10-K |
| 122 | Occidental Petroleum | 2/26/2016 | 10-K |
| 123 | Pemex | 5/16/2016 | 20-F |
| 124 | Petro ChinaCNPC | 4/28/2016 | 20-F |
| 125 | Petro Quest Energy | 3/4/2016 | 10-K |
| 126 | Petroleum Development | 2/22/2016 | 10-K |
| 127 | Prime Energy | 4/8/2016 | 10-K |
| 128 | QEPResources | 2/24/2016 | 10-K |
| 129 | Sabine Oil | 3/24/2016 | 10-K |
| 130 | Samson Oil Gas | 9/29/2016 | 10-K |
| 131 | Sanchez Energy | 2/29/2016 | 10-K |
| 132 | Sanchez Production | 3/30/2016 | 10-K |
| 133 | Sand Ridge Energy | 4/29/2016 | 10-K/A |
| 134 | Sand Ridge Energy | 3/30/2016 | 10-K |
| 135 | SMEnergy StMary Land | 2/24/2016 | 10-K |
| 136 | Superior Energy Services | 2/25/2016 | 10-K |
| 137 | Unit | 2/25/2016 | 10-K |
| 138 | Victory Energy | 4/8/2016 | 10-K |
| 139 | Viper Energy | 2/19/2016 | 10-K |
| 140 | Adams Resources | 3/13/2015 | 10-K |
| 141 | Alta Mesa | 3/26/2015 | 10-K |
| 142 | Apache | 2/27/2015 | 10-K |
| 143 | Apache Offshore Investment | 2/27/2015 | 10-K |
| 144 | Arete | 4/15/2015 | 10-K |
| 145 | Baytex Energy | 3/9/2015 | 40-F |
| 146 | Carrizo Oil | 2/25/2015 | 10-K |
| 147 | Chaparral Energy | 3/31/2015 | 10-K |
| 148 | Chesapeake Energy | 2/27/2015 | 10-K |
| 149 | Chesapeake Granite Wash Trust | 3/12/2015 | 10-K |
| 150 | Clayton Williams Energy | 2/27/2015 | 10-K |
| 151 | CNOOC | 4/22/2015 | 20-F |
| 152 | Continental Resources | 2/24/2015 | 10-K |
| 153 | Diamondback Energy | 2/19/2015 | 10-K |
| 154 | ECAMarcellus | 3/16/2015 | 10-K |
| 155 | Eco PetrolSA | 4/28/2015 | 20-F |
| 156 | Energen | 3/2/2015 | 10-K |
| 157 | Eni SpA | 4/2/2015 | 20-F |
| 158 | EQT | 2/12/2015 | 10-K |
| 159 | Exco Resources | 2/25/2015 | 10-K |
| 160 | Goodrich Petroleum | 4/30/2015 | 10-K/A |
| 161 | Goodrich Petroleum | 3/2/2015 | 10-K |
| 162 | Gulf Coast Ultra Deep | 3/16/2015 | 10-K |
| 163 | Gulfport Energy | 2/27/2015 | 10-K |
| 164 | Halcon Resources | 3/5/2015 | 10-K/A |
| 165 | Harvest Natural Resources | 6/26/2015 | 10-K/A |
| 166 | Harvest Natural Resources | 3/27/2015 | 10-K |
| 167 | Kosmos Energy | 2/23/2015 | 10-K |
| 168 | Laredo Petroleum | 2/26/2015 | 10-K |
| 169 | LLREnergy | 3/4/2015 | 10-K |
| 170 | Marathon Oil | 3/2/2015 | 10-K |
| 171 | MDUResources Fidelity | 2/20/2015 | 10-K |
| 172 | Memorial Production Partners | 2/26/2015 | 10-K |
| 173 | Memorial Resource | 3/18/2015 | 10-K |
| 174 | Northern Oil Gas | 2/27/2015 | 10-K |
| 175 | Occidental Petroleum | 2/23/2015 | 10-K |
| 176 | PDC | 2/19/2015 | 10-K |
| 177 | Pemex | 4/30/2015 | 20-F |
| 178 | Petro ChinaCNPC | 4/29/2015 | 20-F |
| 179 | Petro Quest Energy | 3/6/2015 | 10-K |
| 180 | Petroleum Development | 2/19/2015 | 10-K |
| 181 | Pioneer Natural Resources | 2/19/2015 | 10-K |
| 182 | Prime Energy | 3/18/2015 | 10-K |
| 183 | QEPResources | 2/25/2015 | 10-K/A |
| 184 | QEPResources | 2/24/2015 | 10-K |
| 185 | Samson Oil Gas | 9/15/2015 | 10-K |
| 186 | Sanchez Energy | 3/2/2015 | 10-K |
| 187 | SMEnergy StMary Land | 2/25/2015 | 10-K |
| 188 | Superior Energy Services | 2/26/2015 | 10-K |
| 189 | Synergy Resources | 10/16/2015 | 10-K |
| 190 | Synergy Resources | 6/23/2015 | 10-K/A |
| 191 | Unit | 2/24/2015 | 10-K |
| 192 | Viper Energy | 2/20/2015 | 10-K |
| 193 | Zaza Energy | 4/13/2015 | 10-K/A |
| 194 | Zaza Energy | 3/31/2015 | 10-K |
| 195 | Adams Resources | 3/13/2014 | 10-K |
| 196 | Alabama Gas | 3/3/2014 | 10-K |
| 197 | Alta Mesa | 3/28/2014 | 10-K |
| 198 | Apache | 2/28/2014 | 10-K |
| 199 | Apache Offshore Investment | 2/28/2014 | 10-K |
| 200 | Arete | 4/15/2014 | 10-K |
| 201 | Carrizo Oil | 3/3/2014 | 10-K |
| 202 | Chaparral Energy | 3/31/2014 | 10-K |
| 203 | Chesapeake Energy | 2/27/2014 | 10-K |
| 204 | Chesapeake Granite Wash Trust | 3/14/2014 | 10-K |
| 205 | Clayton Williams Energy | 3/11/2014 | 10-K |
| 206 | CNOOC | 4/17/2014 | 20-F |
| 207 | Continental Resources | 2/27/2014 | 10-K |
| 208 | Diamondback Energy | 2/19/2014 | 10-K |
| 209 | Earthstone Energy Basic Earth | 6/10/2014 | 10-K |
| 210 | ECAMarcellus | 3/14/2014 | 10-K |
| 211 | Eco PetrolSA | 4/25/2014 | 20-F |
| 212 | Energen | 3/3/2014 | 10-K |
| 213 | Eni SpA | 4/10/2014 | 20-F |
| 214 | EPEnergy | 2/27/2014 | 10-K |
| 215 | EPEnergy | 2/20/2014 | 10-K |
| 216 | EQT | 2/20/2014 | 10-K |
| 217 | Exco Resources | 2/26/2014 | 10-K |
| 218 | Geo Met | 3/31/2014 | 10-K |
| 219 | Goodrich Petroleum | 2/21/2014 | 10-K |
| 220 | Gulf Coast Ultra Deep | 3/31/2014 | 10-K |
| 221 | Gulfport Energy | 2/28/2014 | 10-K |
| 222 | Harvest Natural Resources | 3/17/2014 | 10-K |
| 223 | Kinder Morgan | 2/24/2014 | 10-K |
| 224 | Kinder Morgan Energy | 2/18/2014 | 10-K |
| 225 | Laredo Petroleum | 2/27/2014 | 10-K |
| 226 | Marathon Oil | 2/28/2014 | 10-K |
| 227 | MDUResources Fidelity | 2/21/2014 | 10-K |
| 228 | Memorial Production Partners | 3/7/2014 | 10-K |
| 229 | Miller Energy Resources | 7/15/2014 | 10-K/A |
| 230 | Miller Energy Resources | 7/14/2014 | 10-K |
| 231 | Nabors Industries | 4/1/2014 | 10-K/A |
| 232 | Northern Oil Gas | 3/3/2014 | 10-K |
| 233 | Occidental Petroleum | 3/3/2014 | 10-K |
| 234 | PDC | 2/21/2014 | 10-K |
| 235 | PDC2002B | 4/7/2014 | 10-K |
| 236 | PDC2002C | 4/7/2014 | 10-K |
| 237 | Pedevco | 7/1/2014 | 10-K/A |
| 238 | Pedevco | 3/31/2014 | 10-K |
| 239 | Pemex | 5/15/2014 | 20-F |
| 240 | Petro Quest Energy | 3/5/2014 | 10-K |
| 241 | Petroleum Development | 2/21/2014 | 10-K |
| 242 | Pioneer Natural Resources | 2/27/2014 | 10-K |
| 243 | Prime Energy | 3/26/2014 | 10-K |
| 244 | QEPResources | 2/25/2014 | 10-K |
| 245 | QREnergy | 3/3/2014 | 10-K |
| 246 | RSPPermian | 3/31/2014 | 10-K |
| 247 | Samson Oil Gas | 9/15/2014 | 10-K |
| 248 | Sanchez Energy | 3/12/2014 | 10-K |
| 249 | SMEnergy StMary Land | 5/9/2014 | 10-K/A |
| 250 | SMEnergy StMary Land | 2/19/2014 | 10-K |
| 251 | Synergy Resources | 10/30/2014 | 10-K |
| 252 | Synergy Resources | 6/20/2014 | 10-K/A |
| 253 | Triangle Petroleum | 4/17/2014 | 10-K |
| 254 | Unit | 2/25/2014 | 10-K |
| 255 | USEnergy | 3/12/2014 | 10-K |
| 256 | Victory Energy | 4/21/2014 | 10-K/A |
| 257 | Victory Energy | 4/15/2014 | 10-K |
| 258 | Zaza Energy | 3/31/2014 | 10-K |
| 259 | Adams Resources | 3/15/2013 | 10-K |
| 260 | Alabama Gas | 2/28/2013 | 10-K |
| 261 | Antero Resources | 3/15/2013 | 10-K |
| 262 | Apache | 3/1/2013 | 10-K |
| 263 | Apache Offshore Investment | 3/1/2013 | 10-K |
| 264 | Arete | 4/19/2013 | 10-K |
| 265 | Carrizo Oil | 2/28/2013 | 10-K |
| 266 | Chaparral Energy | 4/1/2013 | 10-K |
| 267 | Chesapeake Energy | 4/30/2013 | 10-K/A |
| 268 | Chesapeake Energy | 3/1/2013 | 10-K |
| 269 | Chesapeake Granite Wash Trust | 3/15/2013 | 10-K |
| 270 | Clayton Williams Energy | 3/5/2013 | 10-K |
| 271 | CNOOC | 4/24/2013 | 20-F |
| 272 | Continental Resources | 2/28/2013 | 10-K |
| 273 | Delta Oil Gas | 4/3/2013 | 10-K/A |
| 274 | Delta Oil Gas | 4/1/2013 | 10-K |
| 275 | Diamondback Energy | 4/10/2013 | 10-K/A |
| 276 | Diamondback Energy | 3/1/2013 | 10-K |
| 277 | Eastern American Natural Gas Trust | 3/15/2013 | 10-K |
| 278 | ECAMarcellus | 3/15/2013 | 10-K |
| 279 | Eco PetrolSA | 4/29/2013 | 20-F |
| 280 | Energen | 2/28/2013 | 10-K |
| 281 | Eni SpA | 4/9/2013 | 20-F |
| 282 | EQT | 2/21/2013 | 10-K |
| 283 | Geo Met | 3/28/2013 | 10-K |
| 284 | Gulfport Energy | 3/1/2013 | 10-K |
| 285 | Harvest Natural Resources | 5/2/2013 | 10-K |
| 286 | Laredo Petroleum | 3/12/2013 | 10-K |
| 287 | Marathon Oil | 2/22/2013 | 10-K |
| 288 | Mc MoRan Exploration | 4/26/2013 | 10-K/A |
| 289 | Mc MoRan Exploration | 2/22/2013 | 10-K |
| 290 | MDUResources Fidelity | 2/28/2013 | 10-K |
| 291 | Memorial Production Partners | 3/5/2013 | 10-K |
| 292 | Murphy Oil | 2/28/2013 | 10-K |
| 293 | Nexen | 2/25/2013 | 40-F |
| 294 | Northern Oil Gas | 3/1/2013 | 10-K |
| 295 | Occidental Petroleum | 2/26/2013 | 10-K |
| 296 | PDC | 2/27/2013 | 10-K |
| 297 | PDC2002B | 3/15/2013 | 10-K |
| 298 | PDC2002C | 3/15/2013 | 10-K |
| 299 | Pedevco | 4/25/2013 | 10-K/A |
| 300 | Pedevco | 4/19/2013 | 10-K/A |
| 301 | Pedevco | 3/25/2013 | 10-K |
| 302 | Pemex | 4/30/2013 | 20-F |
| 303 | Petro Quest Energy | 3/11/2013 | 10-K |
| 304 | Petroleum Development | 2/27/2013 | 10-K |
| 305 | Pioneer Natural Resources | 2/13/2013 | 10-K |
| 306 | Plains Exploration | 2/25/2013 | 10-K/A |
| 307 | Plains Exploration | 2/21/2013 | 10-K |
| 308 | Prime Energy | 3/27/2013 | 10-K |
| 309 | QEPResources | 2/22/2013 | 10-K |
| 310 | QREnergy | 3/6/2013 | 10-K |
| 311 | Ridgewood EnergyA1Fund | 2/26/2013 | 10-K |
| 312 | Ridgewood EnergyLFund | 3/11/2013 | 10-K |
| 313 | Ridgewood EnergyOFund | 3/5/2013 | 10-K |
| 314 | Ridgewood EnergyPFund | 3/11/2013 | 10-K |
| 315 | Ridgewood EnergyQFund | 3/14/2013 | 10-K |
| 316 | Ridgewood EnergySFund | 3/5/2013 | 10-K |
| 317 | Ridgewood EnergyTFund | 2/26/2013 | 10-K |
| 318 | Ridgewood EnergyUFund | 3/11/2013 | 10-K |
| 319 | Ridgewood EnergyVFund | 3/14/2013 | 10-K |
| 320 | Ridgewood EnergyWFund | 2/26/2013 | 10-K |
| 321 | Ridgewood EnergyXFund | 3/5/2013 | 10-K |
| 322 | Ridgewood EnergyYFund | 3/14/2013 | 10-K |
| 323 | Samson Oil Gas | 9/18/2013 | 10-K/A |
| 324 | Samson Oil Gas | 9/16/2013 | 10-K |
| 325 | Sanchez Energy | 3/18/2013 | 10-K |
| 326 | SMEnergy StMary Land | 2/21/2013 | 10-K |
| 327 | Synergy Resources | 11/14/2013 | 10-K |
| 328 | Triangle Petroleum | 5/31/2013 | 10-K/A |
| 329 | Triangle Petroleum | 5/1/2013 | 10-K |
| 330 | Unit | 2/26/2013 | 10-K |
| 331 | USEnergy | 3/18/2013 | 10-K |
| 332 | Zaza Energy | 4/2/2013 | 10-K |
| 333 | Adams Resources | 3/23/2012 | 10-K |
| 334 | Alabama Gas | 2/27/2012 | 10-K |
| 335 | Antero Resources | 4/11/2012 | 10-K/A |
| 336 | Antero Resources | 4/11/2012 | 10-K/A |
| 337 | Antero Resources | 3/20/2012 | 10-K |
| 338 | Apache | 2/29/2012 | 10-K |
| 339 | Apache Offshore Investment | 2/29/2012 | 10-K |
| 340 | Arete | 5/1/2012 | 10-K/A |
| 341 | Arete | 4/16/2012 | 10-K |
| 342 | ATPOil Gas | 3/15/2012 | 10-K |
| 343 | Carrizo Oil | 2/29/2012 | 10-K |
| 344 | Chaparral Energy | 3/29/2012 | 10-K |
| 345 | Chesapeake Energy | 4/30/2012 | 10-K/A |
| 346 | Chesapeake Energy | 4/3/2012 | 10-K/A |
| 347 | Chesapeake Energy | 2/29/2012 | 10-K |
| 348 | Chesapeake Granite Wash Trust | 3/30/2012 | 10-K |
| 349 | Clayton Williams Energy | 3/5/2012 | 10-K |
| 350 | CNOOC | 4/20/2012 | 20-F |
| 351 | Continental Resources | 2/24/2012 | 10-K |
| 352 | Earthstone Energy Basic Earth | 6/5/2012 | 10-K |
| 353 | Earthstone Energy Basic Earth | 6/5/2012 | 10-K/A |
| 354 | Eastern American Natural Gas Trust | 3/9/2012 | 10-K |
| 355 | ECAMarcellus | 3/12/2012 | 10-K |
| 356 | Eco PetrolSA | 4/30/2012 | 20-F |
| 357 | El Paso | 4/30/2012 | 10-K/A |
| 358 | El Paso | 2/27/2012 | 10-K |
| 359 | Energen | 2/27/2012 | 10-K |
| 360 | Energy PartnersEPL | 3/8/2012 | 10-K |
| 361 | Eni SpA | 4/5/2012 | 20-F |
| 362 | EQT | 2/16/2012 | 10-K |
| 363 | Geo Met | 3/30/2012 | 10-K |
| 364 | Gulfport Energy | 2/27/2012 | 10-K |
| 365 | Harvest Natural Resources | 3/15/2012 | 10-K |
| 366 | La Cortez Energy | 4/18/2012 | 10-K/A |
| 367 | La Cortez Energy | 4/16/2012 | 10-K |
| 368 | Laredo Petroleum | 3/21/2012 | 10-K |
| 369 | Marathon Oil | 2/29/2012 | 10-K |
| 370 | Marathon Oil | 1/20/2012 | 10-K/A |
| 371 | Mc MoRan Exploration | 2/29/2012 | 10-K |
| 372 | MDUResources Fidelity | 2/24/2012 | 10-K |
| 373 | Murphy Oil | 3/16/2012 | 10-K/A |
| 374 | Murphy Oil | 2/28/2012 | 10-K |
| 375 | Nexen | 2/23/2012 | 40-F |
| 376 | Northern Oil Gas | 2/29/2012 | 10-K |
| 377 | Occidental Petroleum | 2/23/2012 | 10-K |
| 378 | PDC | 3/1/2012 | 10-K |
| 379 | PDC2002B | 3/20/2012 | 10-K |
| 380 | PDC2002C | 3/20/2012 | 10-K |
| 381 | Pemex | 4/30/2012 | 20-F |
| 382 | Petro Quest Energy | 3/5/2012 | 10-K |
| 383 | Petrohawk Energy | 2/28/2012 | 10-K |
| 384 | Petroleum Development | 3/1/2012 | 10-K |
| 385 | Plains Exploration | 2/24/2012 | 10-K |
| 386 | Prime Energy | 3/29/2012 | 10-K |
| 387 | QEPResources | 2/24/2012 | 10-K |
| 388 | QREnergy | 3/15/2012 | 10-K |
| 389 | Ridgewood EnergyA1Fund | 2/16/2012 | 10-K |
| 390 | Ridgewood EnergyKFund | 3/1/2012 | 10-K |
| 391 | Ridgewood EnergyLFund | 3/30/2012 | 10-K |
| 392 | Ridgewood EnergyMFund | 3/30/2012 | 10-K |
| 393 | Ridgewood EnergyOFund | 3/30/2012 | 10-K |
| 394 | Ridgewood EnergyPFund | 3/30/2012 | 10-K |
| 395 | Ridgewood EnergyQFund | 3/1/2012 | 10-K |
| 396 | Ridgewood EnergySFund | 3/30/2012 | 10-K |
| 397 | Ridgewood EnergyTFund | 2/16/2012 | 10-K |
| 398 | Ridgewood EnergyUFund | 3/30/2012 | 10-K |
| 399 | Ridgewood EnergyVFund | 3/30/2012 | 10-K |
| 400 | Ridgewood EnergyWFund | 3/30/2012 | 10-K |
| 401 | Ridgewood EnergyXFund | 3/1/2012 | 10-K |
| 402 | Ridgewood EnergyYFund | 2/16/2012 | 10-K |
| 403 | Samson Oil Gas | 9/13/2012 | 10-K |
| 404 | Sanchez Energy | 3/30/2012 | 10-K |
| 405 | SMEnergy StMary Land | 2/23/2012 | 10-K |
| 406 | Synergy Resources | 12/13/2012 | 10-K/A |
| 407 | Synergy Resources | 11/14/2012 | 10-K |
| 408 | Tengasco | 3/29/2012 | 10-K |
| 409 | Triangle Petroleum | 5/18/2012 | 10-K/A |
| 410 | Triangle Petroleum | 4/16/2012 | 10-K |
| 411 | Unit | 2/23/2012 | 10-K |
| 412 | USEnergy | 3/14/2012 | 10-K |
| 413 | YPFSociedad Anonima | 5/16/2012 | 20-F |
| 414 | Adams Resources | 3/21/2011 | 10-K |
| 415 | Alabama Gas | 2/25/2011 | 10-K |
| 416 | Antero Resources | 3/30/2011 | 10-K |
| 417 | Apache | 4/7/2011 | 10-K/A |
| 418 | Apache | 2/28/2011 | 10-K |
| 419 | Apache Offshore Investment | 2/28/2011 | 10-K |
| 420 | ATPOil Gas | 3/15/2011 | 10-K |
| 421 | Canadian Natural Resources | 3/25/2011 | 40-F |
| 422 | Carrizo Oil | 3/31/2011 | 10-K |
| 423 | Chaparral Energy | 3/29/2011 | 10-K |
| 424 | Chesapeake Energy | 3/1/2011 | 10-K |
| 425 | Clayton Williams Energy | 2/28/2011 | 10-K |
| 426 | CNOOC | 4/29/2011 | 20-F |
| 427 | Continental Resources | 2/25/2011 | 10-K |
| 428 | Devon Energy | 2/23/2011 | 10-K |
| 429 | Earthstone Energy Basic Earth | 6/16/2011 | 10-K |
| 430 | Eastern American Natural Gas Trust | 3/11/2011 | 10-K |
| 431 | ECAMarcellus | 3/1/2011 | 10-K |
| 432 | Eco PetrolSA | 8/8/2011 | 20-F/A |
| 433 | Eco PetrolSA | 7/15/2011 | 20-F |
| 434 | El Paso | 2/28/2011 | 10-K |
| 435 | Energen | 2/25/2011 | 10-K |
| 436 | Energy PartnersEPL | 3/3/2011 | 10-K |
| 437 | Eni SpA | 4/7/2011 | 20-F/A |
| 438 | Eni SpA | 4/7/2011 | 20-F |
| 439 | EQT | 2/23/2011 | 10-K |
| 440 | Geoglobal Resources | 3/31/2011 | 10-K |
| 441 | Harvest Natural Resources | 3/16/2011 | 10-K/A |
| 442 | Harvest Natural Resources | 3/16/2011 | 10-K |
| 443 | La Cortez Energy | 4/1/2011 | 10-K |
| 444 | Loews Highmount Exploration | 2/23/2011 | 10-K |
| 445 | Mainland Resources | 6/1/2011 | 10-K |
| 446 | Marathon Oil | 2/25/2011 | 10-K |
| 447 | Mc MoRan Exploration | 2/28/2011 | 10-K |
| 448 | MDUResources Fidelity | 2/23/2011 | 10-K |
| 449 | Northern Oil Gas | 9/16/2011 | 10-K/A |
| 450 | Northern Oil Gas | 3/4/2011 | 10-K |
| 451 | Occidental Petroleum | 2/24/2011 | 10-K |
| 452 | PDC | 2/24/2011 | 10-K |
| 453 | PDC2002B | 6/30/2011 | 10-K |
| 454 | PDC2002C | 6/30/2011 | 10-K |
| 455 | PDC2002D | 3/30/2011 | 10-K |
| 456 | PDC2003A | 3/30/2011 | 10-K |
| 457 | PDC2003B | 3/30/2011 | 10-K |
| 458 | PDC2003C | 3/30/2011 | 10-K |
| 459 | PDC2003D | 3/30/2011 | 10-K |
| 460 | PDC2005A | 3/30/2011 | 10-K |
| 461 | PDC2005B | 3/30/2011 | 10-K |
| 462 | Pemex | 6/30/2011 | 20-F |
| 463 | Petro Quest Energy | 2/28/2011 | 10-K |
| 464 | Petrohawk Energy | 12/5/2011 | 10-K/A |
| 465 | Petrohawk Energy | 2/21/2011 | 10-K |
| 466 | Petroleum Development | 2/24/2011 | 10-K |
| 467 | Plains Exploration | 2/24/2011 | 10-K |
| 468 | Prime Energy | 4/7/2011 | 10-K |
| 469 | Prime Energy | 3/14/2011 | 10-K/A |
| 470 | Prime Energy | 3/3/2011 | 10-K/A |
| 471 | QEPResources | 2/25/2011 | 10-K |
| 472 | QREnergy | 5/4/2011 | 10-K |
| 473 | Rancher Energy | 7/14/2011 | 10-K |
| 474 | Repsol | 2/4/2011 | 20-F/A |
| 475 | Ridgewood EnergyA1Fund | 2/18/2011 | 10-K |
| 476 | Ridgewood EnergyKFund | 3/15/2011 | 10-K |
| 477 | Ridgewood EnergyLFund | 3/10/2011 | 10-K |
| 478 | Ridgewood EnergyMFund | 3/22/2011 | 10-K |
| 479 | Ridgewood EnergyOFund | 3/15/2011 | 10-K |
| 480 | Ridgewood EnergyPFund | 3/22/2011 | 10-K |
| 481 | Ridgewood EnergyQFund | 3/4/2011 | 10-K |
| 482 | Ridgewood EnergySFund | 3/4/2011 | 10-K |
| 483 | Ridgewood EnergyTFund | 2/18/2011 | 10-K |
| 484 | Ridgewood EnergyUFund | 3/10/2011 | 10-K |
| 485 | Ridgewood EnergyVFund | 3/15/2011 | 10-K |
| 486 | Ridgewood EnergyWFund | 3/22/2011 | 10-K |
| 487 | Ridgewood EnergyXFund | 3/4/2011 | 10-K |
| 488 | Ridgewood EnergyYFund | 2/18/2011 | 10-K |
| 489 | Rockies Region | 3/30/2011 | 10-K |
| 490 | Samson Oil Gas | 9/13/2011 | 10-K |
| 491 | SMEnergy StMary Land | 2/25/2011 | 10-K |
| 492 | Southwest Oil Gas FundIXA | 3/31/2011 | 10-K |
| 493 | Southwest Oil Gas FundVIIA | 3/31/2011 | 10-K |
| 494 | Southwest Oil Gas FundVIIIA | 3/31/2011 | 10-K |
| 495 | Southwest Oil Gas FundXA | 3/31/2011 | 10-K |
| 496 | Southwest Oil Gas FundXB | 3/31/2011 | 10-K |
| 497 | Southwest Royalties FundIXB | 3/31/2011 | 10-K |
| 498 | Southwest Royalties FundV | 3/31/2011 | 10-K |
| 499 | Southwest Royalties FundVI | 3/31/2011 | 10-K |
| 500 | Southwest Royalties FundVIIB | 3/31/2011 | 10-K |
| 501 | Southwest Royalties FundVIIIB | 3/31/2011 | 10-K |
| 502 | Southwest Royalties FundXA | 3/31/2011 | 10-K |
| 503 | Southwest Royalties FundXB | 3/31/2011 | 10-K |
| 504 | Southwest Royalties FundXC | 3/31/2011 | 10-K |
| 505 | Synergy Resources | 11/14/2011 | 10-K |
| 506 | Synergy Resources | 6/3/2011 | 10-K/A |
| 507 | Tengasco | 3/31/2011 | 10-K |
| 508 | Tetra Technologies | 3/1/2011 | 10-K |
| 509 | Unit | 2/24/2011 | 10-K |
| 510 | USEnergy | 3/11/2011 | 10-K |
| 511 | Walter Energy | 2/28/2011 | 10-K |
| 512 | Adams Resources | 3/23/2010 | 10-K |
| 513 | Alabama Gas | 2/25/2010 | 10-K |
| 514 | Apache | 9/28/2010 | 10-K/A |
| 515 | Apache | 2/26/2010 | 10-K |
| 516 | Apache Offshore Investment | 2/26/2010 | 10-K |
| 517 | Apco Oil Gas | 3/12/2010 | 10-K |
| 518 | ATPOil Gas | 12/10/2010 | 10-K/A |
| 519 | ATPOil Gas | 3/16/2010 | 10-K |
| 520 | Canadian Natural Resources | 4/1/2010 | 40-F |
| 521 | Carrizo Oil | 3/16/2010 | 10-K |
| 522 | Chaparral Energy | 4/14/2010 | 10-K |
| 523 | Chesapeake Energy | 8/3/2010 | 10-K/A |
| 524 | Chesapeake Energy | 3/1/2010 | 10-K |
| 525 | Clayton Williams Energy | 12/20/2010 | 10-K/A |
| 526 | Clayton Williams Energy | 3/12/2010 | 10-K |
| 527 | CNOOC | 4/23/2010 | 20-F |
| 528 | Continental Resources | 8/20/2010 | 10-K/A |
| 529 | Continental Resources | 2/26/2010 | 10-K |
| 530 | Devon Energy | 8/18/2010 | 10-K/A |
| 531 | Devon Energy | 2/25/2010 | 10-K |
| 532 | Earthstone Energy Basic Earth | 6/18/2010 | 10-K |
| 533 | Eastern American Natural Gas Trust | 3/15/2010 | 10-K |
| 534 | Eco PetrolSA | 7/15/2010 | 20-F |
| 535 | El Paso | 3/1/2010 | 10-K |
| 536 | Energen | 2/25/2010 | 10-K |
| 537 | Energy PartnersEPL | 3/11/2010 | 10-K |
| 538 | Eni SpA | 4/26/2010 | 20-F |
| 539 | EQT | 2/18/2010 | 10-K |
| 540 | Harvest Natural Resources | 3/16/2010 | 10-K |
| 541 | Hess Bakken American Oil | 4/30/2010 | 10-K/A |
| 542 | Hess Bakken American Oil | 3/29/2010 | 10-K/A |
| 543 | Hess Bakken American Oil | 3/15/2010 | 10-K |
| 544 | La Cortez Energy | 4/20/2010 | 10-K/A |
| 545 | La Cortez Energy | 4/16/2010 | 10-K |
| 546 | Loews Highmount Exploration | 2/24/2010 | 10-K |
| 547 | Mainland Resources | 11/10/2010 | 10-K/A |
| 548 | Mainland Resources | 11/10/2010 | 10-K/A |
| 549 | Mainland Resources | 6/1/2010 | 10-K |
| 550 | Mainland Resources | 3/16/2010 | 10-K/A |
| 551 | Marathon Oil | 9/17/2010 | 10-K/A |
| 552 | Marathon Oil | 2/26/2010 | 10-K |
| 553 | Mariner Energy | 3/1/2010 | 10-K |
| 554 | Mc Moran Exploration | 3/12/2010 | 10-K |
| 555 | MDUResources Fidelity | 2/17/2010 | 10-K |
| 556 | Nexen | 12/15/2010 | 10-K/A |
| 557 | Nexen | 2/25/2010 | 10-K |
| 558 | Northern Oil Gas | 11/5/2010 | 10-K/A |
| 559 | Northern Oil Gas | 3/8/2010 | 10-K |
| 560 | Occidental Petroleum | 2/25/2010 | 10-K |
| 561 | PDC | 8/31/2010 | 10-K/A |
| 562 | PDC | 3/4/2010 | 10-K |
| 563 | PDC2002D | 12/22/2010 | 10-K |
| 564 | PDC2003A | 10/12/2010 | 10-K |
| 565 | PDC2003B | 8/27/2010 | 10-K/A |
| 566 | PDC2003B | 8/3/2010 | 10-K |
| 567 | PDC2003C | 8/27/2010 | 10-K/A |
| 568 | PDC2003C | 8/3/2010 | 10-K |
| 569 | PDC2003D | 10/12/2010 | 10-K |
| 570 | PDC2005A | 8/27/2010 | 10-K/A |
| 571 | PDC2005A | 3/31/2010 | 10-K |
| 572 | PDC2005B | 8/27/2010 | 10-K/A |
| 573 | PDC2005B | 3/31/2010 | 10-K |
| 574 | Pemex | 6/29/2010 | 20-F |
| 575 | Petro Quest Energy | 2/26/2010 | 10-K |
| 576 | Petrohawk Energy | 2/23/2010 | 10-K |
| 577 | Petroleum Development | 8/31/2010 | 10-K/A |
| 578 | Petroleum Development | 3/4/2010 | 10-K |
| 579 | Plains Exploration | 9/1/2010 | 10-K/A |
| 580 | Plains Exploration | 2/25/2010 | 10-K |
| 581 | Prime Energy | 4/15/2010 | 10-K |
| 582 | QEPResources | 3/8/2010 | 10-K |
| 583 | Questar | 3/1/2010 | 10-K |
| 584 | Rancher Energy | 7/14/2010 | 10-K |
| 585 | Repsol | 6/29/2010 | 20-F |
| 586 | Ridgewood EnergyKFund | 8/23/2010 | 10-K/A |
| 587 | Ridgewood EnergyKFund | 3/23/2010 | 10-K |
| 588 | Ridgewood EnergyLFund | 8/23/2010 | 10-K/A |
| 589 | Ridgewood EnergyLFund | 3/18/2010 | 10-K |
| 590 | Ridgewood EnergyMFund | 8/23/2010 | 10-K/A |
| 591 | Ridgewood EnergyMFund | 3/17/2010 | 10-K |
| 592 | Ridgewood EnergyOFund | 8/23/2010 | 10-K/A |
| 593 | Ridgewood EnergyOFund | 3/22/2010 | 10-K |
| 594 | Ridgewood EnergyPFund | 8/23/2010 | 10-K/A |
| 595 | Ridgewood EnergyPFund | 3/11/2010 | 10-K |
| 596 | Ridgewood EnergyQFund | 8/23/2010 | 10-K/A |
| 597 | Ridgewood EnergyQFund | 2/26/2010 | 10-K |
| 598 | Ridgewood EnergySFund | 8/23/2010 | 10-K/A |
| 599 | Ridgewood EnergySFund | 3/16/2010 | 10-K |
| 600 | Ridgewood EnergyTFund | 8/23/2010 | 10-K/A |
| 601 | Ridgewood EnergyTFund | 3/4/2010 | 10-K |
| 602 | Ridgewood EnergyUFund | 8/23/2010 | 10-K/A |
| 603 | Ridgewood EnergyUFund | 3/4/2010 | 10-K |
| 604 | Ridgewood EnergyVFund | 8/23/2010 | 10-K/A |
| 605 | Ridgewood EnergyVFund | 3/11/2010 | 10-K |
| 606 | Ridgewood EnergyWFund | 8/23/2010 | 10-K/A |
| 607 | Ridgewood EnergyWFund | 3/23/2010 | 10-K |
| 608 | Ridgewood EnergyXFund | 8/23/2010 | 10-K/A |
| 609 | Ridgewood EnergyXFund | 2/24/2010 | 10-K |
| 610 | Ridgewood EnergyYFund | 8/23/2010 | 10-K/A |
| 611 | Ridgewood EnergyYFund | 2/25/2010 | 10-K |
| 612 | Rockies Region | 8/27/2010 | 10-K/A |
| 613 | Rockies Region | 3/31/2010 | 10-K |
| 614 | Samson Oil Gas | 12/17/2010 | 20-F |
| 615 | SMEnergy StMary Land | 2/24/2010 | 10-K |
| 616 | Southwest Oil Gas FundIXA | 3/31/2010 | 10-K |
| 617 | Southwest Oil Gas FundVIIA | 3/31/2010 | 10-K |
| 618 | Southwest Oil Gas FundVIIIA | 3/31/2010 | 10-K |
| 619 | Southwest Oil Gas FundXA | 3/31/2010 | 10-K |
| 620 | Southwest Oil Gas FundXB | 3/31/2010 | 10-K |
| 621 | Southwest Royalties FundIXB | 3/31/2010 | 10-K |
| 622 | Southwest Royalties FundV | 3/31/2010 | 10-K |
| 623 | Southwest Royalties FundVI | 3/31/2010 | 10-K |
| 624 | Southwest Royalties FundVIIB | 3/31/2010 | 10-K |
| 625 | Southwest Royalties FundVIIIB | 3/31/2010 | 10-K |
| 626 | Southwest Royalties FundXA | 3/31/2010 | 10-K |
| 627 | Southwest Royalties FundXB | 3/31/2010 | 10-K |
| 628 | Southwest Royalties FundXC | 3/31/2010 | 10-K |
| 629 | Synergy Resources | 11/24/2010 | 10-K |
| 630 | Tengasco | 3/31/2010 | 10-K |
| 631 | Tetra Technologies | 3/1/2010 | 10-K |
| 632 | Triangle Petroleum | 4/9/2010 | 10-K |
| 633 | Ultra Petroleum | 2/26/2010 | 10-K |
| 634 | Unit | 9/17/2010 | 10-K/A |
| 635 | Unit | 2/23/2010 | 10-K |
| 636 | USEnergy | 12/23/2010 | 10-K/A |
| 637 | USEnergy | 12/22/2010 | 10-K/A |
| 638 | USEnergy | 3/12/2010 | 10-K |
| 639 | Virginia Electric Power | 2/26/2010 | 10-K |
| 640 | Alabama Gas | 2/25/2009 | 10-K |
| 641 | Apache | 3/2/2009 | 10-K |
| 642 | Apache Offshore Investments | 3/2/2009 | 10-K |
| 643 | Apco Oil | 3/16/2009 | 10-K |
| 644 | ATPOil | 3/13/2009 | 10-K |
| 645 | Carrizo Oil | 3/13/2009 | 10-K |
| 646 | Chaparral Energy | 3/31/2009 | 10-K |
| 647 | Chesapeake Energy | 3/2/2009 | 10-K |
| 648 | Clayton Williams Energy | 3/13/2009 | 10-K |
| 649 | CNOOC | 5/8/2009 | 20-F |
| 650 | Continental Resources | 2/27/2009 | 10-K |
| 651 | Devon Energy | 2/27/2009 | 10-K |
| 652 | Earthstone Energy Basic Earth | 6/18/2009 | 10-K |
| 653 | Eastern American Natural Gas Trust | 3/13/2009 | 10-K |
| 654 | Eco PetrolSA | 6/30/2009 | 20-F |
| 655 | Energen | 2/25/2009 | 10-K |
| 656 | Energy PartnersEPL | 8/5/2009 | 10-K |
| 657 | Eni SpA | 5/14/2009 | 20-F |
| 658 | EQT | 2/20/2009 | 10-K |
| 659 | Harvest Natural Resources | 3/13/2009 | 10-K |
| 660 | Hess Bakken American Oil | 3/16/2009 | 10-K |
| 661 | Mariner Energy | 3/2/2009 | 10-K |
| 662 | Mc Moran Exploration | 2/27/2009 | 10-K |
| 663 | Nexen | 2/20/2009 | 10-K |
| 664 | Northern Oil Gas | 3/16/2009 | 10-K |
| 665 | Occidental Petroleum | 2/24/2009 | 10-K |
| 666 | PDCEnergy | 2/27/2009 | 10-K |
| 667 | Pemex | 6/30/2009 | 20-F |
| 668 | Petro Quest | 2/27/2009 | 10-K |
| 669 | Petroleum Development | 2/27/2009 | 10-K |
| 670 | Plains Exploration | 2/26/2009 | 10-K |
| 671 | Prime Energy | 4/3/2009 | 10-K |
| 672 | QEPResources | 2/27/2009 | 10-K |
| 673 | Questar | 2/27/2009 | 10-K |
| 674 | Repsol | 2/27/2009 | 20-F |
| 675 | Ridgewood EnergyKFund | 3/25/2009 | 10-K |
| 676 | Ridgewood EnergyLFund | 3/23/2009 | 10-K |
| 677 | Rockies Region | 4/28/2009 | 10-K |
| 678 | Samson Oil Gas | 12/17/2009 | 10-K |
| 679 | SMEnergy StMary Land | 2/24/2009 | 10-K |
| 680 | Southwest Royalties FundIXB | 3/27/2009 | 10-K |
| 681 | Southwest Royalties FundV | 3/27/2009 | 10-K |
| 682 | Tetra Technologies | 3/2/2009 | 10-K |
| 683 | Triangle Petroleum | 4/9/2009 | 10-K |
| 684 | Triangle Petroleum | 4/9/2009 | 10-K |
| 685 | Ultra Petroleum | 2/23/2009 | 10-K |
| 686 | Unit | 2/24/2009 | 10-K |
| 687 | USEnergy | 3/13/2009 | 10-K |
| 688 | Alabama Gas Corp | 2/25/2008 | 10-K |
| 689 | Apache Corporation | 2/29/2008 | 10-K |
| 690 | Apache Offshore Investments | 2/29/2008 | 10-K |
| 691 | Apco Oil | 3/11/2008 | 10-K |
| 692 | ATPOil | 3/7/2008 | 10-K |
| 693 | Bill Barrett Corporation | 2/27/2008 | 10-K |
| 694 | Canadian Natural Resources Ltd. | 3/28/2008 | 40-F |
| 695 | Carrizo Oil & Gas, Inc. | 2/29/2008 | 10-K |
| 696 | Chesapeake Energy Corporation | 2/29/2008 | 10-K |
| 697 | Cimarex Energy Co. | 3/13/2008 | 10-K/A |
| 698 | Cimarex Energy Co. | 2/28/2008 | 10-K |
| 699 | Clayton Williams Energy, Inc. | 3/14/2008 | 10-K |
| 700 | CNOOC Ltd | 6/26/2008 | 20-F |
| 701 | Continental Resources, Inc. | 3/17/2008 | 10-K |
| 702 | Devon Energy Corporation | 6/9/2008 | 10-K/A |
| 703 | Devon Energy Corporation | 2/28/2008 | 10-K |
| 704 | Eastern American Natural Gas Trust | 3/14/2008 | 10-K |
| 705 | El Paso Corporation | 2/28/2008 | 10-K |
| 706 | Energen Corporation | 2/25/2008 | 10-K |
| 707 | Energy Partners, LTD. (EPL) | 3/3/2008 | 10-K |
| 708 | Energy XXI (Bermuda) Ltd | 9/11/2008 | 10-K |
| 709 | Eni SpA | 5/21/2008 | 20-F |
| 710 | EQT Corporation | 2/22/2008 | 10-K |
| 711 | Harvest Natural Resources, Inc. | 4/11/2008 | 10-K/A |
| 712 | Harvest Natural Resources, Inc. | 3/17/2008 | 10-K |
| 713 | Hess Bakken Investments (American O&G) | 3/17/2008 | 10-K |
| 714 | Hyperdynamics Corp | 9/30/2008 | 10-K |
| 715 | Hyperdynamics Corp | 4/18/2008 | 10-K/A |
| 716 | Loews Corporation (Highmount Exploration) | 2/27/2008 | 10-K |
| 717 | Mariner Energy, Inc. | 2/29/2008 | 10-K |
| 718 | McMoRan Exploration Co. | 4/24/2008 | 10-K/A |
| 719 | McMoRan Exploration Co. | 3/17/2008 | 10-K |
| 720 | Nexen Inc | 2/21/2008 | 10-K |
| 721 | Occidental Petroleum Corporation | 2/22/2008 | 10-K |
| 722 | PDCEnergy | 4/29/2008 | 10-K/A |
| 723 | PDCEnergy | 3/20/2008 | 10-K |
| 724 | Pemex | 6/30/2008 | 20-F |
| 725 | Petro Quest | 2/29/2008 | 10-K |
| 726 | Plains Exploration & Production Company | 8/6/2008 | 10-K/A |
| 727 | Plains Exploration & Production Company | 2/27/2008 | 10-K |
| 728 | PrimeEnergy Corporation | 3/27/2008 | 10-K |
| 729 | QEP Resources, Inc. | 2/27/2008 | 10-K |
| 730 | Questar Corporation | 2/27/2008 | 10-K |
| 731 | Rancher Energy Corp. | 6/30/2008 | 10-K |
| 732 | Repsol YPF, S.A. | 5/30/2008 | 20-F |
| 733 | Ridgewood Energy K Fund LLC | 3/24/2008 | 10-K |
| 734 | Ridgewood Energy L Fund LLC | 3/31/2008 | 10-K |
| 735 | Ridgewood Energy M Fund LLC | 3/31/2008 | 10-K |
| 736 | Ridgewood Energy O Fund LLC | 3/21/2008 | 10-K |
| 737 | Ridgewood Energy P Fund LLC | 3/14/2008 | 10-K |
| 738 | Ridgewood Energy Q Fund LLC | 3/27/2008 | 10-K |
| 739 | Ridgewood Energy S Fund LLC | 3/17/2008 | 10-K |
| 740 | Ridgewood Energy T Fund LLC | 3/14/2008 | 10-K |
| 741 | SM Energy Company (St. Mary Land) | 3/5/2008 | 10-K/A |
| 742 | SM Energy Company (St. Mary Land) | 2/22/2008 | 10-K |
| 743 | Tengasco, Inc. | 3/31/2008 | 10-K |
| 744 | Tetra Technologies Inc | 2/29/2008 | 10-K |
| 745 | Triangle Petroleum Corp | 4/29/2008 | 10-K |
| 746 | Ultra Petroleum Corp. | 2/26/2008 | 10-K |
| 747 | Unit Corporation | 2/28/2008 | 10-K |
| 748 | Vanguard Natural Resources, LLC | 3/31/2008 | 10-K |
| 749 | Alabama Gas Corp | 2/27/2007 | 10-K |
| 750 | Apache Corporation | 3/1/2007 | 10-K |
| 751 | Apache Offshore Investments | 3/1/2007 | 10-K |
| 752 | Apco Oil | 3/14/2007 | 10-K |
| 753 | ATPOil | 3/2/2007 | 10-K |
| 754 | Bill Barrett Corporation | 2/28/2007 | 10-K |
| 755 | Canadian Natural Resources Ltd. | 3/30/2007 | 40-F |
| 756 | Carrizo Oil & Gas, Inc. | 4/2/2007 | 10-K |
| 757 | Chesapeake Energy Corporation | 3/1/2007 | 10-K |
| 758 | Cimarex Energy Co. | 2/28/2007 | 10-K |
| 759 | Clayton Williams Energy, Inc. | 3/16/2007 | 10-K |
| 760 | CNOOC Ltd | 6/29/2007 | 20-F |
| 761 | Dejour Energy Inc. | 12/7/2007 | 20-F/A |
| 762 | Devon Energy Corporation | 2/28/2007 | 10-K |
| 763 | Eastern American Natural Gas Trust | 3/16/2007 | 10-K |
| 764 | El Paso Corporation | 2/28/2007 | 10-K |
| 765 | Energen Corporation | 2/27/2007 | 10-K |
| 766 | Energy Partners, LTD. (EPL) | 4/30/2007 | 10-K/A |
| 767 | Energy Partners, LTD. (EPL) | 3/1/2007 | 10-K |
| 768 | Energy XXI (Bermuda) Ltd | 9/27/2007 | 10-K |
| 769 | EQT Corporation | 2/23/2007 | 10-K |
| 770 | Harvest Natural Resources, Inc. | 3/13/2007 | 10-K |
| 771 | Hess Bakken Investments (American O&G) | 4/11/2007 | 10-K/A |
| 772 | Hess Bakken Investments (American O&G) | 4/2/2007 | 10-K |
| 773 | Hyperdynamics Corp | 9/28/2007 | 10-K |
| 774 | Mariner Energy, Inc. | 4/2/2007 | 10-K |
| 775 | McMoRan Exploration Co. | 3/16/2007 | 10-K |
| 776 | Nexen Inc | 4/3/2007 | 10-K/A |
| 777 | Nexen Inc | 4/2/2007 | 10-K/A |
| 778 | Nexen Inc | 2/26/2007 | 10-K |
| 779 | Occidental Petroleum Corporation | 2/27/2007 | 10-K |
| 780 | PDCEnergy | 5/23/2007 | 10-K |
| 781 | Pemex | 7/2/2007 | 20-F |
| 782 | Petro Quest | 3/5/2007 | 10-K |
| 783 | Petrohawk Energy Corporation | 4/30/2007 | 10-K/A |
| 784 | PrimeEnergy Corporation | 4/2/2007 | 10-K |
| 785 | QEP Resources, Inc. | 3/22/2007 | 10-K/A |
| 786 | QEP Resources, Inc. | 3/2/2007 | 10-K |
| 787 | Questar Corporation | 2/28/2007 | 10-K |
| 788 | Rancher Energy Corp. | 10/10/2007 | 10-K/A |
| 789 | Rancher Energy Corp. | 9/7/2007 | 10-K/A |
| 790 | Rancher Energy Corp. | 6/29/2007 | 10-K |
| 791 | Repsol YPF, S.A. | 6/25/2007 | 20-F |
| 792 | Sabine Oil | 2/28/2007 | 10-K |
| 793 | SM Energy Company (St. Mary Land) | 3/21/2007 | 10-K/A |
| 794 | SM Energy Company (St. Mary Land) | 2/23/2007 | 10-K |
| 795 | Stone Energy Corporation | 2/28/2007 | 10-K |
| 796 | Tengasco, Inc. | 3/30/2007 | 10-K |
| 797 | Tetra Technologies Inc | 3/1/2007 | 10-K |
| 798 | Ultra Petroleum Corp. | 2/28/2007 | 10-K |
| 799 | Unit Corporation | 3/1/2007 | 10-K |
| 800 | Whiting Petroleum Corporation | 2/28/2007 | 10-K |
| 801 | Williams Companies Inc. | 2/28/2007 | 10-K |
| 802 | Alabama Gas Corp | 3/15/2006 | 10-K |
| 803 | Apache Corporation | 3/14/2006 | 10-K |
| 804 | Apache Offshore Investments | 10/12/2006 | 10-K/A |
| 805 | Apache Offshore Investments | 3/14/2006 | 10-K |
| 806 | Apco Oil | 3/10/2006 | 10-K |
| 807 | ATPOil | 3/15/2006 | 10-K |
| 808 | Bill Barrett Corporation | 3/3/2006 | 10-K |
| 809 | Canadian Natural Resources Ltd. | 4/5/2006 | 40-F |
| 810 | Carrizo Oil & Gas, Inc. | 6/12/2006 | 10-K/A |
| 811 | Carrizo Oil & Gas, Inc. | 4/11/2006 | 10-K/A |
| 812 | Carrizo Oil & Gas, Inc. | 4/10/2006 | 10-K |
| 813 | Chesapeake Energy Corporation | 3/14/2006 | 10-K |
| 814 | Cimarex Energy Co. | 3/9/2006 | 10-K |
| 815 | Clayton Williams Energy, Inc. | 3/16/2006 | 10-K |
| 816 | CNOOC Ltd | 6/26/2006 | 20-F |
| 817 | Devon Energy Corporation | 3/3/2006 | 10-K |
| 818 | Eastern American Natural Gas Trust | 3/23/2006 | 10-K/A |
| 819 | Eastern American Natural Gas Trust | 3/16/2006 | 10-K |
| 820 | El Paso Corporation | 3/7/2006 | 10-K |
| 821 | Energen Corporation | 3/15/2006 | 10-K |
| 822 | Energy Partners, LTD. (EPL) | 2/27/2006 | 10-K |
| 823 | Eni SpA | 6/21/2006 | 20-F |
| 824 | EQT Corporation | 2/24/2006 | 10-K |
| 825 | Harvest Natural Resources, Inc. | 2/27/2006 | 10-K |
| 826 | HKN, Inc. | 2/28/2006 | 10-K |
| 827 | Hyperdynamics Corp | 10/13/2006 | 10-K |
| 828 | Mariner Energy, Inc. | 3/31/2006 | 10-K |
| 829 | McMoRan Exploration Co. | 3/15/2006 | 10-K |
| 830 | Occidental Petroleum Corporation | 3/1/2006 | 10-K |
| 831 | PDCEnergy | 5/31/2006 | 10-K |
| 832 | Pemex | 6/30/2006 | 20-F |
| 833 | Petro Quest | 3/8/2006 | 10-K |
| 834 | Plains Exploration & Production Company | 3/10/2006 | 10-K |
| 835 | PrimeEnergy Corporation | 4/6/2006 | 10-K |
| 836 | QEP Resources, Inc. | 3/13/2006 | 10-K |
| 837 | Questar Corporation | 3/2/2006 | 10-K |
| 838 | Sabine Oil | 3/16/2006 | 10-K |
| 839 | Santa Fe Energy Trust | 3/16/2006 | 10-K |
| 840 | SM Energy Company (St. Mary Land) | 2/27/2006 | 10-K |
| 841 | Southwest Oil & Gas Income Fund VII A L P | 3/30/2006 | 10-K |
| 842 | Stone Energy Corporation | 8/25/2006 | 10-K/A |
| 843 | Stone Energy Corporation | 3/13/2006 | 10-K |
| 844 | Tengasco, Inc. | 3/20/2006 | 10-K |
| 845 | Tetra Technologies Inc | 3/16/2006 | 10-K |
| 846 | Torch Energy Royalty Trust | 3/31/2006 | 10-K |
| 847 | Ultra Petroleum Corp. | 3/31/2006 | 10-K |
| 848 | Unit Corporation | 3/13/2006 | 10-K |
| 849 | Venoco, Inc. | 4/5/2006 | 10-K |
| 850 | Whiting Petroleum Corporation | 2/28/2006 | 10-K |
| 851 | Alabama Gas Corp | 3/15/2005 | 10-K |
| 852 | Apache Corporation | 3/16/2005 | 10-K |
| 853 | Apache Offshore Investments | 3/16/2005 | 10-K |
| 854 | Apco Oil | 3/14/2005 | 10-K |
| 855 | ATPOil | 10/28/2005 | 10-K/A |
| 856 | ATPOil | 3/31/2005 | 10-K |
| 857 | Bill Barrett Corporation | 3/16/2005 | 10-K |
| 858 | Canadian Natural Resources Ltd. | 4/1/2005 | 40-F |
| 859 | Carrizo Oil & Gas, Inc. | 5/2/2005 | 10-K/A |
| 860 | Carrizo Oil & Gas, Inc. | 3/31/2005 | 10-K |
| 861 | Chesapeake Energy Corporation | 3/9/2005 | 10-K |
| 862 | Cimarex Energy Co. | 3/15/2005 | 10-K |
| 863 | Clayton Williams Energy, Inc. | 3/16/2005 | 10-K |
| 864 | CNOOC Ltd | 9/7/2005 | 20-F/A |
| 865 | CNOOC Ltd | 6/22/2005 | 20-F |
| 866 | Devon Energy Corporation | 3/9/2005 | 10-K |
| 867 | Eastern American Natural Gas Trust | 5/2/2005 | 10-K/A |
| 868 | Eastern American Natural Gas Trust | 3/31/2005 | 10-K |
| 869 | El Paso Corporation | 6/16/2005 | 10-K/A |
| 870 | El Paso Corporation | 5/6/2005 | 10-K/A |
| 871 | El Paso Corporation | 4/8/2005 | 10-K/A |
| 872 | El Paso Corporation | 3/28/2005 | 10-K |
| 873 | Energen Corporation | 3/15/2005 | 10-K |
| 874 | Energy Partners, LTD. (EPL) | 3/14/2005 | 10-K |
| 875 | EQT Corporation | 2/25/2005 | 10-K |
| 876 | Harvest Natural Resources, Inc. | 2/23/2005 | 10-K |
| 877 | HKN, Inc. | 6/23/2005 | 10-K/A |
| 878 | HKN, Inc. | 4/13/2005 | 10-K/A |
| 879 | HKN, Inc. | 4/5/2005 | 10-K/A |
| 880 | HKN, Inc. | 3/16/2005 | 10-K |
| 881 | McMoRan Exploration Co. | 3/15/2005 | 10-K |
| 882 | Occidental Petroleum Corporation | 3/1/2005 | 10-K |
| 883 | Petro Quest | 3/8/2005 | 10-K |
| 884 | Plains Exploration & Production Company | 4/22/2005 | 10-K/A |
| 885 | Plains Exploration & Production Company | 4/4/2005 | 10-K/A |
| 886 | Plains Exploration & Production Company | 3/16/2005 | 10-K |
| 887 | PrimeEnergy Corporation | 4/6/2005 | 10-K |
| 888 | QEP Resources, Inc. | 3/31/2005 | 10-K |
| 889 | Questar Corporation | 3/8/2005 | 10-K/A |
| 890 | Questar Corporation | 3/7/2005 | 10-K |
| 891 | Repsol YPF, S.A. | 6/30/2005 | 20-F |
| 892 | Sabine Oil | 3/15/2005 | 10-K |
| 893 | Santa Fe Energy Trust | 3/15/2005 | 10-K |
| 894 | SM Energy Company (St. Mary Land) | 2/25/2005 | 10-K |
| 895 | Stone Energy Corporation | 3/9/2005 | 10-K |
| 896 | Tengasco, Inc. | 9/13/2005 | 10-K/A |
| 897 | Tengasco, Inc. | 3/31/2005 | 10-K |
| 898 | Tetra Technologies Inc | 3/16/2005 | 10-K |
| 899 | Torch Energy Royalty Trust | 4/22/2005 | 10-K/A |
| 900 | Torch Energy Royalty Trust | 4/15/2005 | 10-K |
| 901 | Ultra Petroleum Corp. | 3/16/2005 | 10-K |
| 902 | Unit Corporation | 3/15/2005 | 10-K |
| 903 | Whiting Petroleum Corporation | 2/28/2005 | 10-K |