Additionally, the United States oil drilling rig count rose this week for the first time in four weeks, an indication that production is rising.
A drop in US oil production also lent prices some support.
USA light crude dropped $1.42, or 1.9 percent, to $71.75 after hitting a low of $71.63.
While OPEC's Secretary-General Mohammad Barkindo tried to reassure markets that supplies are sufficient, he neglected to specify how much extra output OPEC intends to pump, an omission that's undermining efforts to calm prices.
Global equities were set for their biggest daily gain in almost a month.
Beware of the message that will crash your PlayStation 4
Fortune has reached out to Sony and PlayStation for comment, and will update this story in the event that they respond. The offending messages apparently have the word "Juegas" and a unusual symbol that can't be recognized by the PS4.
USA natural-gas supplies in storage stand at about 17% below the five-year average, according to the EIA.
Also, traders were betting on a drop in global crude demand as U.S.
So far, indications that the global crude market is more resilient than some analysts think include: US producers resuming operations nearly immediately after Hurricane Michael; the Organization of the Petroleum Exporting Countries boosting output and promising the ability to produce much more; Saudi Arabia claiming it already has set itself up to cover any Iranian shortfalls; and Russian Federation along with other non-OPEC countries gearing up to produce in record volumes.
Western Canada Select slumped below US$20 a barrel on Thursday, the lowest in more than two years, continuing a brutal streak of declines for the country's main grade of crude.
IEA thinks global supply is healthy.
Saudi considers admitting Khashoggi died in botched op
A bone saw was used to dismember Khashoggi's body and it was placed in handheld cases and transported back to Saudi Arabia. CNBC reports that Khashoggi was last seen on October 2 as he entered the Saudi Arabian consulate in Istanbul , Turkey.
Brent crude futures traded Friday afternoon at $80.67 per barrel, up from $57.17 per barrel on October 13, 2017. The contract lost 2.4% in the previous session. Prices this week are set to fall the most since July.
Brent crude fell $1.55, or 1.9 percent, to $81.54 a barrel by 10:53 a.m. ET (1453 GMT), off the session low of $81.14, its weakest since September 26. WTI is on track for a 3.5% decline this week. The global benchmark crude traded at a $9.59 premium to WTI for the same month.
Characterized by geopolitical volatility, boom and bust cycles, destructive market rules and lack of cooperation, the rivalry scenario would see higher energy intensity, lower GDP, largely stable share of fossil fuels and more demand for shale gas. The Bloomberg Commodity Index had its first back-to-back drop in three weeks on Thursday as oil and aluminum prices plunged, and is on course for the first weekly drop in four weeks.
Elsewhere, U.S. crude inventories rose by 6 million barrels last week, the Energy Information Administration said, more than double analysts' expectations of a 2.6 million-barrel increase. All comments are subject to editorial review.
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Who is bluffing? Man City deny claims of Messi bid
Maradona led Argentina to the World Cup crown in 1986 and is revered in his homeland as a God due to the feats. But the five-time world's best player snubbed the advances by City to sign an extension at the catalan outfit.