Oil prices crept up on Tuesday after Washington imposed sanctions on Venezuelan state-owned oil firm PDVSA in a step set to severely curb the OPEC member's crude exports to the United States.
Despite the move, which comes as the U.S government looks to pile pressure on sitting President Nicolas Maduro to step down, traders said ample global oil supply and an economic slowdown especially in China were keeping crude prices in check.
The United States has remained a major destination for Venezuelan oil despite their political differences, although volumes have declined over the past years amid Venezuela's economic crisis and as the U.S. government has started targeting the South American nation with sanctions.
The U.S. government is supporting Venezuelan opposition leader Juan Guaido, who proclaimed himself interim president last week and is demanding the resignation of Maduro.
"As a result of today's action, all property and interests in property of PDVSA subject to U.S. jurisdiction are blocked, and U.S. persons are generally prohibited from engaging in transactions with them," the U.S. Treasury said late on Monday.
"Persons operating in the oil sector of the Venezuelan economy may be subject to sanctions," it added.
Venezuela has the world's biggest proven oil reserves and is a member of the Organization of the Petroleum Exporting Countries (OPEC).
Despite its huge reserves, Venezuela's exports declined to little more than 1 million barrels per day in 2018 from 1.6 million bpd in 2017, according to Refinitiv ship tracking data and trade sources.
The decline comes amid an economic crisis which has seen investment plummet, power and key equipment supplies disrupted, and salaries left unpaid.
While news of the sanctions against Venezuela grabbed headlines, analysts said the fundamental issue for global oil trade remained plentiful supply.
"The more significant issue is (global) supply, and despite OPEC's best efforts (to reduce output) there seems to be plenty of it," said Jeffrey Halley of futures brokerage OANDA in Singapore.
Global oil supply remains high largely due to a more than 2 million bpd increase in U.S. crude oil production last year, to a record 11.9 million bpd.
There are also concerns in the oil industry that crude demand could stutter amid an economic slowdown.
Of China's 31 provinces, regions and municipalities, at least 23 have cut their economic growth targets for this year, according to provincial announcements this month, in a sign that industry and manufacturing in the world's No.2 economy is slowing.
To stem the slowdown, China's National Development and Reform Commission (NDRC) on Tuesday unveiled a flurry of measures aimed at spurring sales of items ranging from cars and appliances to information services.