Crude prices jumped in Asian trade this week with New York futures again in sight of $100 a barrel after unrest in the oil-rich Middle East broadened, analysts said.
"The unrest in the Middle East and fears that the situation will worsen are still supporting oil prices despite news that Saudi Arabia will increase output," said Ong Yi Ling, investment analyst for Phillip Futures in Singapore.
Anti-government turmoil now convulsing Libya spread to Oman, another Gulf oil exporter, over the weekend.
Major crude producer Iran has urged OPEC, especially Saudi Arabia, to refrain from any unilateral hike in oil output, saying current crude production was enough to meet any shortages arising over the unrest in Libya.
"There is no need for OPEC members to be hasty and take unilateral decisions" to raise output, Oil Minister Masoud Mirkazemi said of Saudi Arabia, when asked to comment on Riyadh's offer to compensate for any shortage.
Mirkazemi, the current president of the Organisation of the Petroleum Exporting Countries (OPEC), said the oil group had so far not decided to hold any extraordinary session to discuss a raise in output.
Saudi Arabia, OPEC's largest producer of oil, pumps around 8.4 million barrels of oil per day and Iran is the organisation's second largest exporter.
