U.S. West Texas Intermediate (WTI) crude futures CLc1 were trading up 41 cents, or 0.8 percent, at $50.30 by 0852 GMT, near the three-month high of $50.50 it reached last Thursday. Brent crude futures LCOc1, the benchmark for oil prices outside the United States, were at $55.91 a barrel, up 29 cents, and also not far from the near five-month high of $55.99 touched on Thursday.

“The principal risk regarding Russian and Chinese activities in Venezuela in the near term is that they will exploit the unfolding crisis, including the effect of US sanctions, to deepen their control over Venezuela’s resources, and their [financial] leverage over the country as an anti-US political and military partner,” observed R. Evan Ellis, a senior associate in the Center for Strategic and International Studies’ Americas Program.

U.S. West Texas Intermediate crude CLc1 was down 21 cents, or 0.4 percent, at $49.68 a barrel at 0302 GMT. It briefly broke above $50 on Thursday, hitting a four-month high, and finished 1.2 percent higher at $49.89, its highest close since July 31. Brent crude LCOc1 futures were down 29 cents, or 0.5 percent, at $55.18 a barrel. They gained 0.6 percent to settle at $55.47 the previous session, the highest close since April 13.

Oil prices are expected to hold between $50 and $60 a barrel as bloated global stocks fall after a deal between OPEC and other producers to trim output, BP Chief Executive Bob Dudley said on Thursday.

Emmanuel Kachikwu, Nigeria’s minister of state for petroleum resources, told the Financial Times that the west African nation’s energy sector was still suffering from years of violent disruptions and needed more “recovery time” before joining a supply deal agreed last year between some of the world’s biggest oil producers.

Preliminary production figures for August 2017 show an average daily production of 1 918 000 barrels of oil, NGL and condensate, which is a decrease of 41 000 barrels per day compared to July. Total gas sales were 10.4 billion Sm3 (GSm3), which is a decrease of 0.1 GSM3 from the previous month.

By 1021 GMT, international benchmark Brent crude LCOc1 was up 27 cents, or 0.5 percent, at $54.54 a barrel. U.S. West Texas Intermediate (WTI) CLc1 was up 38 cents, or 0.8 percent, at $48.61 a barrel.

EIA forecasts Brent spot prices to average $51/b in 2017 and $52/b in 2018. Expected growth in natural gas exports and domestic natural gas consumption in 2018 contribute to the forecast Henry Hub natural gas spot price rising from an annual average of $3.05/MMBtu in 2017 to $3.29/MMBtu in 2018.

The OPEC Reference Basket rose for the second-consecutive month in August to average $49.60/b, representing a gain of $2.67/b or 6%. Year-to-date, the Basket was 30.9% higher at $49.73/b. Crude futures prices also saw gains with ICE Brent increasing 5.5% to $51.87/b and NYMEX WTI up 3.0% at $48.06/b. Year-to-date, crude futures prices were more than 20% higher. During the week of 29 August money managers cut WTI futures and options net long positions by 105,671 contracts to 147,303 lots, the US Commodity Futures Trading Commission (CFTC) said. Money managers slightly reduced Brent futures and options net length contracts by 1,296 to 416,551 lots during the same week.

U.S. crude for October delivery CLc1 was up 41 cents, or 0.9 percent, at $47.89 a barrel by 0648 GMT, having tumbled 3.3 percent on Friday. London Brent crude for November delivery LCOc1 was up 30 cents, or 0.6 percent, at $54.08, having settled down 1.3 percent.

Глава "Роснефти" Игорь Сечин ожидает, что в 2018 году цена на нефть будет колебаться в пределах $40-$43 за баррель. "При предварительном анализе, в следующем году мы будем иметь цены в пределах $40-43 за баррель", - сказал он в интервью телеканалу "Россия 24".

CEFC China Energy is set to take a stake of almost $9bn in Russian state-controlled oil company Rosneft, in a major strengthening of energy ties between Beijing and Moscow as relations deteriorate with the west.

Iran says its crude oil production will reach 4.5 million barrels per day in a matter of a few years, end of the 6th five-year development plan to 2022.

“There was a request from our colleagues in Venezuela to carry out a restructuring,” Russian finance minister Anton Siluanov said. “There are difficulties in fulfilling the debt.”

Oil giant Saudi Aramco will on Wednesday add 1.9 million barrels (300,000 kilolitres) of crude to storage that it holds in Japan, a Japanese trade ministry official said.