Concerns those companies had formed a cartel.
Britain announced a plan to ban combustion-powered cars by 2040.
The price of OPEC basket of fourteen crudes stood at $47.11 a barrel on Tues.
The report, released this week, said that a single bidder, Turkish company Karpowership, has applied to supply Lebanon electricity barges and this constitutes a violation of the law.
Salalah II, which is owned by the Dhofar Generation Company, will start power generation from its 445MW-capacity plant in January 2018
The selected consultant will be required to develop a detailed master-plan, complete with a capital investment programme, covering a 25-year horizon
Kuwait's OPEC governor Haitham al-Ghais said it is premature to talk about additional cuts to oil output.
A Chinese company is building 100 solar farms shaped like pandas along the route of the ambitious Belt and Road initiative.
State oil trader Unipec will develop "really strong" ties with China's independent refiners.
Spanish oil company Repsol had been operating in cooperation with Vietnam.