The oil and gas terminal at the Port of Odessa in Odessa, Ukraine, on Saturday, Jan. 22, 2022.

Oil prices gained about $1 a barrel on Thursday, supported by figures showing U.S consumer prices unexpectedly fell in December and by optimism over China's demand outlook.

The U.S. consumer price index dipped 0.1%, suggesting inflation was now on a sustained downward trend. Top oil importer China is reopening its economy after the end of strict COVID-19 curbs, boosting hopes of higher oil demand.