Oil extended gains toward $50 a barrel after OPEC+ reached a compromise deal to gradually taper production cuts, ending days of uncertainty after cracks emerged in the alliance earlier in the week.

Futures surged 1.8% in London after closing at the highest level in nine months on Thursday. The group will start adding 500,000 barrels a day of crude to the market in January, with ministers holding monthly meetings to decide on the next steps. The deal avoided a breakdown of OPEC+ unity after a tense split between Saudi Arabia and the United Arab Emirates.