Oil rises to multi-month highs on Russian supply concerns

By Shariq Khan

NEW YORK (Reuters) -Oil prices rose to multi-month highs for the second straight session on Tuesday, as traders assessed how Ukraine's recent attacks on Russian refineries would affect global petroleum supplies.

U.S. West Texas Intermediate crude futures for April delivery rose to their highest since October, up by $1.03, or 1.3%, to $83.75 a barrel by 12:58 p.m. EST (1658 GMT).

Global benchmark Brent crude rose 68 cents, or 0.8%, to $87.57 a barrel, the highest since Nov. 3.

Ukraine has stepped up attacks on Russian oil infrastructure this year, with at least seven refineries targeted by drones just this month. The attacks have shut down 7%, or around 370,500 barrels per day, of Russian refining capacity, Reuters calculations show.

While lower refining activity has led to an increase in Russian crude oil exports, it could also lead to crude oil production cuts as the country faces storage constraints, StoneX energy analyst Alex Hodes said.

Based on Hodes' calculations, the attacks on Russian refineries could result in a decrease of around 350,000 bpd of global petroleum supplies and boost U.S. crude prices by $3 per barrel.

Even if the attacks do not lead to a direct loss of Russian crude supply, there is still a spillover effect for oil prices from surging refined product margins, SEB Research analyst Bjarne Schieldrop wrote on Monday.

Oil gained support from declining crude exports from Saudi Arabia and Iraq, as well as signs of stronger demand and economic growth in China and the U.S.

U.S. single-family homebuilding rebounded sharply in February, the Commerce Department reported. Homebuilding could boost economic growth, supporting oil demand.

"Oil demand data surprising on the positive side and the extension of the voluntary OPEC+ cuts until the end of June have supported prices," said UBS analyst Giovanni Staunovo.

"Brent will likely trade in an $80-90 per barrel range this year, with an end-June forecast of $86 per barrel," Staunovo said.

(Reporting by Shariq Khan in New York, Noah Browning in London and Trixie Yap in SingaporeAdditional reporting by Paul Carsten in LondonEditing by Mark Potter, David Goodman and David Gregorio)