Moscow: Russia’s oil industry continued its long-term expansion last year, with production hitting a record even as President Vladimir Putin joined forces with Opec to clear a global glut and lift prices.

The nation’s oil output increased to an average 10.98 million barrels a day in 2017, up 0.1 percent from the previous year, according to data published on Tuesday by the Energy Ministry’s CDU-TEK statistics unit. That’s the ninth consecutive annual increase to the highest level since the collapse of the Soviet Union in 1991.

Russian output has soared under Putin’s leadership, nearly doubling from 6.1 million barrels a day in 1999. The industry’s long expansion could pause in 2018 because Russia has agreed to another year of cuts with the Organisation of Petroleum Exporting Countries. The unprecedented period of cooperation depleted bloated fuel stockpiles and boosted prices last year, re-shaping the global oil market and energy geopolitics.

Despite the cuts, Russia achieved a record because it ramped up production so rapidly the year before. Output reached 11.23 million barrels a day in October 2016, a month before the accord with Opec was announced. Russia implemented its pledged 300,000 barrel-a-day supply cut gradually, meaning output remained above 11 million barrels a day for several months in early 2017.

Russia’s allies in Opec aren’t complaining. Brent prices climbed 18 per cent last year and global inventories have fallen. Brent rose 0.2 per cent to $67 a barrel on the London-based ICE Futures Europe exchange at 8:40 am local time.

Following the November decision to extend the pact through 2018, Saudi Arabia’s Energy Minister Khalid Al Falih, sitting next to his Russian counterpart Alexander Novak at a press conference, said “we are completely aligned.”

Oil output in December was 10.95 million barrels a day, up 0.1 per cent from November, while exports dropped 5.3 per cent to 5.24 million barrels a day, according to CDU-TEK.