| CAIRN ENERGY USA INC | Dec 31 |
| CALDERA CORP\ | Jun 30 |
| CALHOUN MICHAEL L | Dec 31 |
| Callon Offshore Production, Inc. | Dec 31 |
| Callon Petroleum Co | Dec 31 |
| CALLON PETROLEUM CO /DE/ | Dec 31 |
| CALLON PETROLEUM CO/MS | Dec 31 |
| Callon Petroleum Operating CO | Dec 31 |
| CANADA SOUTHERN PETROLEUM LTD | Dec 31 |
| CANADIAN 88 ENERGY CORP | Dec 31 |
| CANARGO ENERGY CORP | Dec 31 |
| Canetic Resources Trust | Dec 31 |
| CannAwake Corp | Dec 31 |
| CANO PETROLEUM, INC | Jun 30 |
| CAPCO ENERGY INC | Dec 31 |
| CAPROCK CORP | Mar 31 |
| Carbon Energy Corp | Dec 31 |
| CARBON ENERGY CORP | Dec 31 |
| CARMEL ENERGY INC | Dec 31 |
| CARRIZO OIL & GAS INC | Dec 31 |
| Casablanca Mining Ltd. | Feb 4 |
| CASPEN OIL INC | Jul 31 |
| CASTLE ENERGY CORP | Sep 30 |
| CASTLEGUARD ENERGY INC | Dec 31 |
| CEC RESOURCES LTD | Dec 31 |
| CEDYCO CORP | Dec 31 |
| Centennial Resource Development, Inc. | Dec 31 |
| CENTIRE INTERNATIONAL, INC. | Dec 31 |
| CENTRAL CAPITAL VENTURE CORP | Jun 30 |
| CENTRAL UTILITIES PRODUCTION CORP | Dec 30 |
| Century Petroleum Corp. | Apr 30 |
| Challenger Energy Corp | |
| Champion American Energy Reserves, Inc. | Dec 31 |
| CHANCELLOR GROUP INC. | Dec 31 |
| Chaparral Energy, Inc. | Dec 31 |
| CHAPARRAL RESOURCES INC | Dec 31 |
| CHEETAH OIL & GAS LTD. | Dec 31 |
| CHENIERE GRYPHON MANAGEMENT INC | Dec 31 |
| CHESAPEAKE ENERGY MARKETING LLC | Dec 31 |
| CHESAPEAKE KNAN ACQUISITION LLC | Dec 31 |
| CHIEFTAIN INTERNATIONAL FUNDING CORP | Dec 31 |
| CHIEFTAIN INTERNATIONAL INC | Dec 31 |
| CHINA DAQING M&H PETROLEUM, INC. | Sep 30 |
| CHINA NORTH EAST PETROLEUM HOLDINGS LTD | Dec 31 |
| CHUNG AN INVESTMENTS LTD | Sep 30 |
| CIBOLA ENERGY CORP | Dec 31 |
| CIMAREX ENERGY CO | Dec 31 |
| Cimarex Resolute LLC | Dec 31 |
| CIRCLE STAR ENERGY CORP. | Apr 30 |
| Citadel Exploration, Inc. | Dec 31 |
| CITGO PETROLEUM CORP | Dec 31 |
| CITYVIEW CORP LTD /NEW/ | Dec 31 |
| CIVITAS RESOURCES, INC. | Dec 31 |
| CKB Petroleum, LLC | Dec 31 |
| CLAYTON WILLIAMS ENERGY INC /DE | Dec 31 |
| CLINTON APPALACHIAN X LTD PARTNERSHIP | Dec 31 |
| CLX ENERGY INC | Sep 30 |
| CMS OIL & GAS CO | Dec 31 |
| CNOOC Finance (2013) Ltd. | Dec 31 |
| CNOOC LTD | Dec 31 |
| CNX Gas Corp | Dec 31 |
| COASTAL CARIBBEAN OILS & MINERALS LTD | Dec 31 |
| Cobalt International Energy, Inc. | Dec 31 |
| CODA ENERGY INC | Dec 31 |
| COHO ENERGY INC | Dec 31 |
| COHO EXPLORATION INC | Dec 31 |
| COHO FAIRBANKS GATHERING CO | Dec 31 |
| COHO LOUISIANA GATHERING CO | Dec 31 |
| COHO LOUISIANA PRODUCTION CO | Dec 31 |
| COHO RESOURCES INC | Dec 31 |
| Colony Energy, Inc. | Dec 31 |
| COLORADO WYOMING RESERVE CO | Jun 30 |
| COLUMBUS ENERGY CORP | Nov 30 |
| COMPTON PETROLEUM CORP | |
| Compton Petroleum Finance CORP | Dec 31 |
| CONCHO RESOURCES INC | Dec 31 |
| CONNECT GAS PIPELINE LLC | Dec 31 |
| CONOCO CANADA RESOURCES LTD | Dec 31 |
| CONSOLIDATED NRD RESOURCES LTD | Dec 31 |
| Constellation Oil Services Holding S.A. | |
| Contango Energy CO | Dec 31 |
| CONTANGO OIL & GAS CO | Dec 31 |
| CONTINENTAL ENERGY CORP | Jun 30 |
| CONTINENTAL FUELS, INC. | Dec 31 |
| CONTINENTAL RESOURCES, INC | Dec 31 |
| CONVEST ENERGY CORP /TX/ | Dec 31 |
| COSTILLA ENERGY INC | Dec 31 |
| Coterra Energy Inc. | Dec 31 |
| COUGAR OIL & GAS CANADA INC. | Dec 31 |
| CRIMSON EXPLORATION INC. | Dec 31 |
| CROSS BORDER RESOURCES, INC. | Dec 31 |
| CROSS CANYON ENERGY CORP. | Dec 31 |
| Crown Oil & Gas Inc. | Nov 30 |
| Crusader Energy Group Inc. | Dec 31 |
| CUSTOMER SPORTS INC | Jul 31 |
| CUSTOM RESTAURANT & HOSPITALITY GROUP, INC. | Jul 31 |
| CYBERTEX ENTERPRISES INC | Dec 31 |
| CYGNUS OIL & GAS CORP | Dec 31 |
| DALECO RESOURCES CORP | Sep 30 |
| DAYBREAK OIL & GAS, INC. | Feb 28 |