By Florence Tan

SINGAPORE (Reuters) - Oil futures edged up on Monday after Saudi Arabia hiked June crude prices for most regions and as the prospect of a Gaza ceasefire deal appeared slim, renewing fears the Israel-Hamas conflict could still widen in the key oil producing region.

futures climbed 28 cents, or 0.3%, to $83.24 a barrel at 0119 GMT, while U.S. West Texas Intermediate crude futures were at $78.40 a barrel, up 29 cents, or 0.4%.

Saudi Arabia raised the official selling prices (OSPs) for its crude sold to Asia, Northwest Europe and the Mediterranean in June, signalling expectations of strong demand this summer.

"After falling a little more than 7.3% last week due to easing geopolitical tensions, ICE Brent has started the new trading week on a stronger footing, opening higher," ING's head of commodities research Warren Patterson said in a note.

This comes after Saudi Arabia raised June OSPs for most regions amid a tightening of supplies this quarter, he added.

Last week, both futures contracts posted their steepest weekly loss in three months with Brent falling more than 7% and WTI down 6.8%, as investors weighed weak U.S. jobs data and the possible timing of a Federal Reserve interest rate cut.

The geopolitical risk premium in oil prices has also eased as talks for a Gaza ceasefire are underway.

However, prospects for a deal appeared slim on Sunday as Hamas reiterated its demand for an end to the war in exchange for the freeing of hostages, and Israeli Prime Minister Benjamin Netanyahu flatly ruled that out.

In a sign supply may tighten, U.S. energy companies cut the number of oil and rigs operating for a second week in a row last week, with oil rigs down seven to 499, in the biggest weekly drop since November 2023, Baker Hughes said in a report on Friday.