| PVR MIDSTREAM JV Holdings LLC | Dec 31 |
| PXP PRODUCING CO LLC | Dec 31 |
| Pyramid Delaware Merger Subsidiary, Inc. | Dec 31 |
| PYR ENERGY CORP | Aug 31 |
| QEP RESOURCES, INC. | Dec 31 |
| QR Energy, LP | Dec 31 |
| QUANTITATIVE ALPHA TRADING INC. | Dec 31 |
| QUANTUM ENERGY INC. | Feb 28 |
| QUESTA OIL & GAS CO /CO/ | Dec 31 |
| Quest Energy Partners, L.P. | Dec 31 |
| QUEST OIL CORP | Mar 31 |
| QUEST RESOURCE CORP | Dec 31 |
| Quicksilver Production Partners LP | Dec 31 |
| QUICKSILVER RESOURCES INC | Dec 31 |
| RAAM Global Energy Co | Dec 31 |
| RADIANT OIL & GAS INC | Dec 31 |
| RAM ENERGY INC/OK | Dec 31 |
| RANGE ENERGY CORP | Dec 31 |
| Rangeford Resources, Inc. | Mar 31 |
| Range Operating Texas, L.L.C. | Dec 31 |
| RANGE PETROLEUM CORP | Sep 30 |
| Range Resources - Louisiana, Inc. | Dec 31 |
| RANGER OIL LTD | Dec 31 |
| REDEARTH ENERGY INC | Dec 31 |
| RedHawk Holdings Corp. | Jun 30 |
| RED MOUNTAIN RESOURCES, INC. | Jun 30 |
| Reef Global Energy III, L.P. | Dec 31 |
| REEF GLOBAL ENERGY II LP | Dec 31 |
| REEF GLOBAL ENERGY I LP | Dec 31 |
| Reef Global Energy IV, L.P. | Dec 31 |
| REEF GLOBAL ENERGY VENTURES | Dec 31 |
| Reef Global Energy V, L.P. | Dec 31 |
| Reef Oil & Gas Income & Development Fund III LP | Dec 31 |
| Regency Energy Finance CORP | Dec 31 |
| Regency Energy Partners LP | Dec 31 |
| REGENCY HYDROCARBONS LLC | Dec 31 |
| REGENCY LAVERNE LLC | Dec 31 |
| REGENCY MARCELLUS GAS GATHERING LLC | Dec 31 |
| REGENCY PIPELINE LLC | Dec 31 |
| REGENT TECHNOLOGIES INC | Dec 31 |
| Remington Energy Group Corp | Dec 31 |
| REMINGTON OIL & GAS CORP | Dec 31 |
| Remora Royalties, Inc. | Dec 31 |
| REPSOL OIL & GAS CANADA INC. | Dec 31 |
| Resaca Exploitation, Inc. | Jun 30 |
| RESERVE EXPLORATION CO | Mar 31 |
| Resolute Energy Partners, LP | Dec 31 |
| REX ENERGY CORP | Dec 31 |
| RHINO BIOTECH Ltd | Dec 31 |
| Rice Energy Operating LLC | Dec 31 |
| RICH COAST INC | Apr 30 |
| RICHLAND RESOURCES CORP | |
| Richland Resources Corp. | Oct 31 |
| RIGEL ENERGY CORP | Dec 31 |
| Riley Exploration Group, LLC | Dec 31 |
| Riley Exploration - Permian, LLC | Sep 30 |
| Rio Bravo Oil, Inc. | Sep 30 |
| RIO GRANDE INC /DE/ | Jan 31 |
| Rise Oil & Gas, Inc. | Dec 31 |
| Riviera Resources, Inc. | Dec 31 |
| Rivulet Entertainment, Inc. | Jun 30 |
| ROBERTS GARETH | Dec 31 |
| ROCHESTER RESOURCES LTD | May 31 |
| Rock City Energy Corp. | Dec 31 |
| ROCKFORD OIL CORP | Dec 31 |
| Rockies Region 2006 Limited Partnership | Dec 31 |
| ROCKIES REGION 2007 LP | |
| ROCKY MOUNTAIN ENERGY CORP | Sep 30 |
| Rosehill Resources Inc. | Dec 31 |
| Roth CH Acquisition V Co. | Dec 31 |
| ROWLAND MARCUS C | Jun 30 |
| ROYALE ENERGY FUNDS, INC | Dec 31 |
| ROYALITE PETROLEUM CO INC. | Apr 30 |
| Royal Resources Partners LP | Dec 31 |
| RSP Permian, Inc. | Dec 31 |
| RUTHERFORD MORAN EXPLORATION CO | |
| RUTHERFORD-MORAN OIL CORP | Dec 31 |
| RYKHOEK PHIL | Dec 31 |
| SABA PETROLEUM CO | Dec 31 |
| SABINE OIL & GAS CORP | Dec 31 |
| Sabine Oil & Gas Corp | Dec 31 |
| Sabine Production Partners LP | Dec 31 |
| Sable Natural Resources Corp | Dec 31 |
| SAGE ENERGY CO | Jun 30 |
| Samson Resources Corp | Dec 31 |
| Sanchez Energy Corp | Dec 31 |
| SandRidge Mississippian Trust I | Dec 31 |
| SandRidge Mississippian Trust II | Dec 31 |
| SandRidge Permian Trust | Dec 31 |
| SANTA FE SNYDER CORP | Dec 31 |
| SANTA MARIA ENERGY CORP | Dec 31 |
| Sasol Financing USA LLC | Jun 30 |
| SAVANNA EAST AFRICA, INC. | Jun 30 |
| Savoy Energy Corp | Dec 31 |
| SEABOARD OIL CO | Mar 31 |
| SEACOAST OIL & GAS, INC. | Oct 31 |
| SERENPET INC | Dec 31 |
| SEVEN J STOCK FARM INC | Oct 31 |
| Sharewell Capital Group, Inc. | Dec 31 |
| Shell International Finance B.V. | Dec 31 |