On Friday, crude prices ascended because both American crude output and inventories sagged, pointing to a tightening market.
Firm Chinese crude import data also underpinned oil, as market experts state.
With OPEC leading an output cut, market experts told that global crude markets were currently broadly balanced following years of oversupply.
American West Texas Intermediate crude futures hit $50.88 a barrel, rising 0.6% from their previous settlement.
American crude inventories went down 2.7 million barrels by October 6, hitting 462.22 million barrels, as the Energy Information Administration informed on Thursday.
Crude output slid 81,000 barrels a day reaching 9.48 million bpd.
Brent oil futures hit $56.51, soaring 0.5%.
Firm Chinese crude imports that averaged up to 8.5 million bpd between January and September, also underpinned oil prices, as financial experts stressed.