Front-month Brent crude futures LCOc1 were down 45 cents, or 0.8 percent by 0951 GMT (4:51 a.m. ET) from their last settlement at $53.49 per barrel. The contract was up more than 13 percent this week, its biggest gain since March 2009. U.S. West Texas Intermediate (WTI) futures CLc1 were at $50.68, down 38 cents.

U.S. crude oil CLc1 added to overnight gains of 9 percent to reach $50.00 a barrel for the first time since October. Brent crude LCOc1, which soared $4 overnight, touched a six-week peak of $52.73 a barrel.

Россия поэтапно снизит добычу нефти в первом полугодии 2017 года в объеме до 300 тыс. баррелей в сутки в сжатые сроки, исходя из своих технических возможностей.

OPEC will reduce output by about 1.2 million barrels a day by January, the group said, fulfilling a plan sketched out in Algiers in September to cut its production to 32.5 million barrels. The agreement exempted Nigeria and Libya, but gave Iraq its first quotas since the 1990s. West Texas Intermediate crude futures rose 0.3 percent to $49.61 a barrel at 11:44 a.m. Singapore time after gaining 9.3 percent Wednesday, the biggest one-day gain since Feb. 12.

Brent crude, the international oil marker, rose more than $3.00, or 7.2 per cent, to $49.73 in the late morning in London.

Brent crude futures LCOc1 fell as far as 2 percent before clawing back to trade up 29 cents at $47.44 per barrel at 1008 GMT. U.S. West Texas Intermediate (WTI) crude futures CLc1 also recouped early losses and were trading up 15 cents at $46.21 per barrel.

At 1040 GMT (5:40 a.m. ET), Brent crude futures LCOc1 were trading at $48.89, down 6 cents from their close. U.S. West Texas Intermediate (WTI) crude CLc1 was down 2 cents at $47.94 per barrel.

Brent crude oil futures LCOc1 were up 85 cents a barrel at $49.75 by 1000 GMT (5:00 a.m. ET), having earlier risen $1 in a push against the $50 mark for the first time since the end of October. U.S. West Texas Intermediate (WTI) crude futures CLc1 were up 68 cents, or 1.4 percent, at $48.92 a barrel.

Brent crude oil LCOc1 was up 60 cents a barrel at $47.23 by 1120 GMT (6:20 a.m. ET). U.S. light crude CLc1 was up 50 cents at $46.07.

The Organization of the Petroleum Exporting Countries agreed in September to reduce output to help draw down a global supply glut that is weighing on oil prices, but left the details of the plan to be worked out later. The group is holding a so-called “technical meeting” at their Vienna headquarters Monday and Tuesday to discuss the mechanism for implementing the September agreement. The technical meeting will prepare for OPEC’s ministerial meeting Nov. 30 in Vienna.