© Reuters. FILE PHOTO: A person puts gas in a vehicle at a gas station in Manhattan, New York City, U.S., August 11, 2022. REUTERS/Andrew Kelly/File Photo

By Robert Harvey

LONDON (Reuters) -Oil prices were on track for over 5% gains week-on-week on Friday, amid persistent tensions in the Middle East after Israel rejected a ceasefire offer from Hamas.

futures slipped 20 cents, or 0.25%, on the day to $81.43 a barrel by 1223 GMT, while U.S. West Texas Intermediate crude futures fell by 9 cents, or 0.12%, to $76.13 a barrel.

Israeli forces continued deadly air strikes on Gaza on Friday, after the bombing of Gaza’s southern border city of Rafah on Thursday helped send oil prices up by around 3% in the previous session.

“It takes two to tango to reach a ceasefire deal in the Middle East and tensions in the region have not gone away,” UBS analyst Giovanni Staunovo said.

Brent futures prices firmed to above $81 a barrel after Israeli Prime Minister Benjamin Netanyahu rejected a proposal to end the war in the Palestinian enclave on Wednesday.

“With the words that, ‘no part of the Gaza Strip would be immune from Israel’s offensive’, it was not hard for oil participants to conclude that without even a passing regard for peace, there was not enough conflict-premium priced in,” PVM analyst John Evans said.

Elsewhere, Ukraine launched drone attacks against two oil refineries in southern Russia on Friday, resulting in a fire at the Ilsky refinery. The Afipsky refinery, also in Krasnodar Krai which borders Crimea on the Black Sea and Azov Sea coast, was the other facility in the attack.

Russia is exporting more crude in February than it planned under an OPEC+ deal, following a combination of drone attacks and technical outages at its refineries.

“Proof still needs to be provided that Russia is able to cut oil exports sufficiently even without weather-related constraints,” Commerzbank (ETR:) analyst Carsten Fritsch said on Friday in reference to the country’s OPEC+ cut quota.

Meanwhile, the U.S. Treasury Department on Thursday sanctioned another three entities based in the United Arab Emirates (UAE) and one tanker registered by Liberia for violating a cap placed on the price of Russian oil by a coalition of Western nations.