Oil heads towards second consecutive weekly gain on supply concerns
Oil prices fell slightly on Friday but were heading for a second consecutive weekly gain as fresh U.S. sanctions on Iran and the latest output plan from the OPEC+ producer group raised expectations of tighter supply.
Brent crude futures were down 27 cents, or 0.4%, at $71.73 a barrel by 1103 GMT. U.S. West Texas Intermediate crude futures fell 22 cents, or 0.3%, to $67.85.
On a weekly basis, Brent was on track to rise 1.5% and WTI nearly 1%, marking their biggest gains since the first week of the year.
The United States Treasury on Thursday announced new Iran-related sanctions, which for the first time targeted an independent Chinese refiner among other entities and vessels involved in supplying Iranian crude oil to China.
New U.S. sanctions against Iran's oil exports triggered Thursday's rally in oil prices along with the OPEC+ pledge to compensate for overproduction, said PVM analyst Tamas Varga.
Thursday's announcement marked Washington's fourth round of sanctions against Iran since U.S. President Donald Trump in February promised "maximum pressure" on Tehran and pledged to drive the country's oil exports to zero.
Analysts at ANZ Bank said they expect a 1 million barrels per day (bpd) reduction in Iranian crude oil exports because of tighter sanctions. Vessel tracking service Kpler estimated Iranian crude oil exports above 1.8 million bpd in February.
Oil prices were also supported by the new OPEC+ plan for seven members to cut output further to compensate for producing more than agreed levels. The plan would represent monthly cuts of between 189,000 bpd and 435,000 bpd until June 2026.
OPEC+ this month confirmed that eight of its members would proceed with a monthly increase of 138,000 bpd from April, reversing some of the 5.85 million bpd of output cuts agreed in a series of steps since 2022 to support the market.
"While the group shares a plan for compensation cuts, it certainly doesn't mean members will follow it. A handful of members have consistently produced above their target production levels," ING analysts said in a note on Friday.
Kazakhstan's oil output has reached a record high in March on the back of oilfield expansion, further exceeding OPEC+ production quotas, two industry sources told Reuters.
