Russia's crude oil production climbed to a record in 2017 even as it joined forces with the Organisation of the Petroleum Exporting Countries (Opec) to clear a global glut and lift prices.
Brent Crude futures rose 41c to 66.57 bbl.
USA commercial crude oil inventories have fallen by nearly 20 per cent from their historic highs last March, to 431.9 million barrels.
WTI prices were supported by data from the US Energy Information Administration late Thursday showing domestic Crude Oil production declined last week to 9.75-M BPD from 9.79-M BPD the prior week.
"Growing unrest in Iran set the table for a bullish start to 2018", the US -based Schork Report said in a note to clients on Tuesday.
U.S. West Texas Intermediate (WTI) crude futures settled at $60.42, the highest close since June 2015.
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It is tracked by emergency room visits, and thermometer sales at local drug stores is also tracked to gauge illness in the region. Previous flu seasons dominated by H3N2 seasons have been more severe, especially among young children and older adults.
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But despite the earlier countdown and balloon drop, those in attendance weren't any less enthusiastic. The event runs from 10 a.m.to 1 p.m. and is included in the price of admission to the zoo.
Worldwide benchmark Brent Crude futures also rose, supported by ongoing supply cuts by top producers OPEC and Russian Federation as well as strong demand from China.
The Kremlin's deal with Opec has been extended until the end of 2018, a sign that allies are committed to cutting stockpiles to boost prices.
Some analysts think Friday's crude gains will evaporate sooner than later: "The current highs are unsustainable in the short-to-medium term, with prices likely to head back below $60 once we get past January", stated JBC Energy GmbH.
Monthly EIA data released on Friday showed US crude production hit a 46-year high in October, but the country's oil exports and demand also rose.
"Independent E&P firms will be particularly attractive to larger independents and integrated oil companies", Moody's said in its 2018 credit trends report. If the figure is not revised next month, it would be the highest monthly level since May 1971.