Oil prices extended gains on Tuesday amid concerns over Russian and Iranian oil supply and sanctions threats despite worries that escalating trade tariffs could dampen global economic growth.
Brent crude futures were up $1.2, or 1.6%, at $77.07 a barrel by 1313 GMT, while US West Texas Intermediate crude rose $1.11 or 1.5% to $73.43.
Both contracts posted gains of near 2% in the prior session after three weekly losses in a row, Reuters reported.
"With the US bearing down on Iranian exports and sanctions still biting into Russian flows, Asian crude grades remain firm and underpin the rally from yesterday," PVM oil analyst John Evans said.
Shipping of Russian oil to China and India, the world's major crude oil importers, has been significantly disrupted by US sanctions last month targeting tankers, producers and insurers.
Adding to supply jitters are US sanctions on networks shipping Iranian oil to China after President Donald Trump restored his "maximum pressure" on Iranian oil exports last week.
But countering the price gains was the latest tariff by Trump which could dampen global growth and energy demand.
Trump on Monday substantially raised tariffs on steel and aluminium imports to the US to 25% "without exceptions or exemptions" to aid the struggling industries that could increase the risk of a multi-front trade war.
The tariff will hit millions of tons of steel and aluminium imports from Canada, Brazil, Mexico, South Korea and other countries.
"Tariffs and counter-tariffs have the potential to weigh on the oil intensive part of the global economy in particular, creating uncertainty over demand," Morgan Stanley said in a note on Monday.
"However, we think this backdrop will probably also cause OPEC+ to extend current production quotas once again, which would solve for a balanced market in [the second half of 2025]", the bank added.
Trump last week introduced 10% additional tariffs on China, for which Beijing retaliated with its own levies on US imports, including a 10% duty on crude.
Also weighing on crude demand, the US Federal Reserve will wait until the next quarter before cutting rates again, according to a majority of economists in a Reuters poll who previously expected a March cut.
The Fed faces the threat of rising inflation under Trump's policies. Keeping rates at a higher level could limit economic growth, which would impact oil demand growth.
US crude oil and gasoline stockpiles were expected to have risen last week, while distillate inventories likely fell, a preliminary Reuters poll showed on Monday.
The poll was conducted ahead of weekly reports from industry group, the American Petroleum Institute, due at 4:30 p.m. ET (2130 GMT) on Tuesday and an Energy Information Administration report due on Wednesday.
