According to Transparency International, companies operating in Sudan (based on reporting in 2009) included four national companies: China National Petroleum Corporation (CNPC), Kuwait Petroleum Corporation (KPC), the Oil and Natural Gas Corporation (ONGC, the Indian NOC) and Petronas (Petroliam Nasional Berhad).
Sudan | United States Department of Energy | International Atomic Energy Agency | Leadership in Energy and Environmental Design | South Sudan | Department of Energy | United States Atomic Energy Commission | renewable energy | energy | International Energy Agency | Valero Energy Corporation | United States House Committee on Energy and Commerce | Sudan People's Liberation Army | solar energy | Lost Boys of Sudan | Energy | Efficient energy use | Origin Energy | EDF Energy | Anglo-Egyptian Sudan | Wau, South Sudan | Nuclear Energy Agency | German nuclear energy project | Federal Energy Regulatory Commission | dark energy | Pakistan Atomic Energy Commission | Energy Star | Devon Energy | Constellation Energy | Westar Energy |