(Repeats story published on Thursday with no changes to text)
* Saudi offers more oil to Asia after field maintenances
* Some buyers say Arab Extra Light price uncompetitive vs UAE oil
* Output from Shaybah oilfield to hit 1 mln bpd in next 2 weeks
By Florence Tan
SINGAPORE, May 26 (Reuters) - Saudi Arabia is offering extra crude to customers in Asia, a sign the world's largest oil exporter does not intend to cut output as it battles for market share with other top producers.
Saudi's offers of more oil come after it recently completed maintenance programmes that had reduced supplies from some fields during the second quarter, traders said. The kingdom will also soon increase its Arab Extra Light crude output in an expansion of the Shaybah oilfield.
But some Asian refiners said they are not rushing to buy more Arab Extra Light after Aramco raised the oil's official selling price (OSP) by 80 cents a barrel in June, making it more expensive relative to similar Abu Dhabi grades.
In a market that still has the most growth potential and in which many producers, including Iran, Iraq and Russia, are trying to increase sales, that does not portend well for Saudi Arabia as it begins to bring new output online in June.
"It will be challenging (for Saudi Arabia). One of the things that will come into play is whether they will start cutting OSPs to attract customers and keep volumes intact," said Sushant Gupta, downstream oil analyst at energy consultancy Wood Mackenzie in Singapore.
State oil company Saudi Aramco plans to ramp up output from the Shaybah field over the next two weeks to 1 million barrels per day (bpd), fully utilising its expanded capacity, Saudi media reported on Thursday, quoting the company's chief executive.
This month, Saudi Aramco has asked at least two Asian refiners if they will lift more oil in June on top of contract volumes, two trading sources familiar with the matter said.
However, "their latest OSP is not attractive to refineries," a trader with an Asian refiner said, adding that grades from the United Arab Emirates, of quality similar to Arab Extra Light, were more competitively priced.
A second trader with an Asian refiner said: "Refining margins are so-so, so I don't think there is a big drive to take more prompt oil."
Complex refining margins in Singapore have risen slightly from five-year lows touched earlier in May, with ample fuel supplies continuing to cap refiners' profits.
Saudi Aramco did not immediately respond to an emailed request for comment on any offers made to Asian refiners.
Iran and Iraq have also said they will increase output, slimming hopes that the Organization of the Petroleum Exporting Countries (OPEC) will agree to any long-term plan to curtail supplies when it meets in Vienna next week.
Russia's oil shipments to China hit a record in April, as it took the top spot as largest crude exporter - ahead of Saudi Arabia - to the world's No.1 energy consumer for the second time this year.
Iran said on Sunday it aims to raise its exports to 2.2 million bpd by mid-summer after it cut June prices to Asia to the biggest discounts to Saudi and Iraqi oil since 2007-2008.
Iraq said its exports have hit an all-time high of 3.9 million bpd on increased output from southern fields, and that it is still on track to triple production by 2020. (Reporting by Florence Tan in SINGAPORE; Additional reporting by Osamu Tsukimori in TOKYO; Editing by Tom Hogue)