Norwood Resources Ltd. | Canada |
Private
|
Nostrum Oil & Gas Finance B.V. | Netherlands |
Private
|
Nova Biosource Fuels, Inc | United States |
Private
|
Nova Scotia Resources Limited | Canada |
Private
|
NovaMarlim Petroleo SA | Brazil |
Private
|
Novicourt Inc. | Canada |
Private
|
Novoil OAO | Russia |
Private
|
NSTAR Gas Company | United States |
Private
|
Nuevo Energy Company | United States |
Private
|
Nustar Pipeline Partners L.P. | United States |
Private
|
Nuverra Environmental Solutions, Inc. | United States |
Private
|
O.W. Bunker & Trading A/S | Denmark |
Private
|
Oak Ridge Utility District | United States |
Private
|
Oakridge Energy Inc | United States |
Private
|
OASIS MIDSTREAM PARTNERS LP | United States |
Private
|
Occidental Crude Sales, Inc (International) | United States |
Private
|
Occidental Permian, Limited | United States |
Private
|
Ocean Drilling & Exploration Co. | United States |
Private
|
Ocean Rig 2 As | Norway |
Private
|
Ocean Rig AS | Norway |
Private
|
Ocean Rig Norway AS | Norway |
Private
|
Ocean Rig UDW Inc. | Cyprus |
Private
|
Oceanic Exploration Company | United States |
Private
|
Oceanografia, S.A. de C.V. | Mexico |
Private
|
Octel-Starreon Llc | United States |
Private
|
Odebrecht Offshore Drilling Finance Limited | Cayman Islands |
Private
|
Oil Investment Barbados Limited | Barbados |
Private
|
Oil Search Limited | Australia |
Private
|
Oilsands Quest Inc. | Canada |
Private
|
Oiltanking Partners, L.P. | United States |
Private
|
OKC-LP | United States |
Private
|
Oklahoma Energy Corporation | United States |
Private
|
Oman LNG LLC | Oman |
Private
|
Omega Commercial Finance Corporation | United States |
Private
|
OMNI Energy Services Corporation | United States |
Private
|
Onco Petroleum Inc | Canada |
Private
|
One Bryant Park LLC | United States |
Private
|
ONGC Videsh Limited | India |
Private
|
Online Energy Inc. | Canada |
Private
|
Open Range Energy Corp. | Canada |
Private
|
Ophir Energy Limited | United Kingdom |
Private
|
Orbit Petroleum Inc | United States |
Private
|
Orchard Petroleum Limited | Australia |
Private
|
Orix Aviation Systems Ltd | Republic of Ireland |
Private
|
ORLEN UNIPETROL AS | Czech Republic |
Private
|
ORLEN Upstream Canada Ltd | Canada |
Private
|
Orsted Salg & Service A/S | Denmark |
Private
|
Oryx Energy Company | United States |
Private
|
Oryx Southern Delaware Holdings LLC | United States |
Private
|
Oslo Seismic Services, Inc. | United States |
Private
|
Osprey Energy Ltd. | Canada |
Private
|
Osum Oil Sands Corp. | Canada |
Private
|
Oxbow Calcining LLC | United States |
Private
|
Oxbow Energy Solutions B.V. | Netherlands |
Private
|
OXY USA, Inc. | United States |
Private
|
Oy Esso Ab | Finland |
Private
|
PAA Natural Gas Storage, L.P. | United States |
Private
|
Pacalta Resources Ltd. | Canada |
Private
|
Pacific Energy Fuels Company | United States |
Private
|
Pacific Energy Group LLC | United States |
Private
|
Pacific Energy Partners L.P. | United States |
Private
|
Pacific Energy Resources Ltd. | United States |
Private
|
Pacific Enterprises | United States |
Private
|
Pacific Power & Light Company | United States |
Private
|
Pacific Stratus Energy Ltd | Canada |
Private
|
Paco Integrated Energy, Inc | United States |
Private
|
Palliser Oil & Gas Corp | Canada |
Private
|
Pan Andean Resources plc | United Kingdom |
Private
|
Panhandle Eastern Pipe Line Company, LP | United States |
Private
|
Paragon Offshore Drilling LLC | United States |
Private
|
Parallel Petroleum LLC | United States |
Private
|
Paramo a.s. | Czech Republic |
Private
|
Paramount Resources TEC Ltd | Canada |
Private
|
Park Place Energy Corp. | United States |
Private
|
Passport Energy Ltd. | Canada |
Private
|
Patina Oil & Gas Corporation | United States |
Private
|
PATRICK PETROLEUM CORPORATION OF MICHIGAN | United States |
Private
|
Pauley Petroleum, Inc. | United States |
Private
|
PDTI Holdings, LLC | United States |
Private
|
Pebercan Inc. | Canada |
Private
|
Pegasi Energy Resources Corp | United States |
Private
|
Pegasus Oil & Gas Inc | Canada |
Private
|
Pemex Exploracion y Produccion, E.P.S. | Mexico |
Private
|
Pemex Finance Limited | Cayman Islands |
Private
|
Pemopro SA de CV | Mexico |
Private
|
Pennant Energy Inc. | Canada |
Private
|
Pennzoil-Quaker State Company | United States |
Private
|
Peoples Energy, LLC | United States |
Private
|
Permenergo | Russia |
Private
|
Permian Partners Limited | United States |
Private
|
Peru LNG S.R.L. | Peru |
Private
|
Petro Andina Resources Inc | Canada |
Private
|
Petro One Energy Corp | Canada |
Private
|
Petro Welt Technologies GmbH | Austria |
Private
|
Petro-Canada | Canada |
Private
|
Petroamerica Oil Corp. | Canada |
Private
|
PetroBakken Exploration Ltd. | Canada |
Private
|
Petrobras America Inc | United States |
Private
|
Petrobras Energia Participaciones S.A | Argentina |
Private
|
Petrobras Global Finance B.V | Netherlands |
Private
|
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