Oil prices fell on Thursday, retreating from earlier gains, after the International Energy Agency's director warned of weaker demand in China, while the market also watched for potential new U.S. sanctions curbing Russian crude flows and an OPEC+ decision on hiking output in July.

The ruling added to uncertainty, but investors were encouraged that it could slow momentum for a trade war that threatens economic and corporate growth.

The decision on Wednesday from the Court of International Trade blocked one of the Trump administration’s most audacious assertions of executive power, under the International Emergency Economic Powe...

Global oil prices are being kept firmly in check by rising crude inventories and OPEC’s decision to raise oil production.