“Higher oil demand is expected in the 3rd and 4th Quarters”, HE Dr Mohammed Bin Saleh Al-Sada, Qatar’s Minister of Energy and Industry and current OPEC President said, expressing positive sentiments in a brief released from OPEC.

Production from the Organization of Petroleum Exporting Countries climbed to an eight-year high last month, boosted by the re-admission of Gabon, which swelled the number of members to 14, the IEA said. The group’s crude output rose 400,000 barrels a day to 33.21 million a day as Saudi Arabia boosted production to meet peak domestic demand during the summer and as Iran continued its export recovery following the end of international sanctions in January.

"We have seen a large amount of short positions being closed while long positions have been opened," Novak said in reference to speculative bets - shorts - in the market that prices will fall, and the opposite - longs - that they will rise.

"The Kingdom's oil policies are rooted in responsibility, and Saudi Arabia is seeking to maintain that balance while also giving heed to moderate prices for producers and consumers,"

With income falling, the 13 members of the Organization of the Petroleum Exporting Countries (OPEC) posted a combined current account deficit of $99.60 billion in 2015, compared with a surplus of $238.10 billion in 2014.

The claim relates to a U.K. joint venture between the Chinese and a Canadian firm which the Spanish oil producer acquired last year.

Russia’s oil industry is “very resilient,” BP Plc CEO Bob Dudley said in St. Petersburg on Thursday. The nation’s resources are competitively priced and floating the currency has been helpful for costs, he said while announcing a new exploration joint-venture with Rosneft.

PetroChina Co., the nation’s biggest producer, said in March it expects oil and gas output to fall the first time in 17 years as it shuts fields that have “no hope” of turning a profit, while Cnooc Ltd. sees output slipping as much as 5.2 percent this year.

Prices need to be at level above $50 a barrel for more crude supplies to come back to the market following a slump over the past two years, Khalid Al-Falih, Minister of Energy, Industry and Mineral Resources, told reporters in his suite in a Vienna hotel.

"The fact that OPEC agreed on its new management shows they want to regain their coordinating role. The cartel will perform market management again," Alekperov, chief executive of Russian energy firm Lukoil, said after meeting Falih and Iranian Oil Minister Bijan Zanganeh separately in Vienna.