SINGAPORE, Aug 7 (Reuters) - Middle East crude benchmarks spot premiums of Dubai, Murban and Oman gained on Thursday, after Saudi Arabia hiked its September crude oil prices for Asian buyers for a second consecutive month on tight supply and robust demand.

Saudi Arabia raised the official selling price for the flagship Arab light crude it sells to Asia in September to plus $3.20 a barrel above the Oman/Dubai average, state oil company Aramco said in a statement, up $1 from the August premium.

The September OSPs to Asia for other crude grades - Arab Extra Light, Arab Medium and Arab Heavy - gained 70 cents to $1.20 a barrel from August, the statement showed.

SINGAPORE CASH DEALS

Cash Dubai's premium to swaps rose 21 cents to $2.88 a barrel.

Unipec will deliver an October-loading Upper Zakum crude cargo to Vitol following the deals.

PRICES ($/BBL)

NEWS

Indian private refiner Nayara Energy, which was last month sanctioned by the European Union, has sought help from India's shipping ministry to get vessels for the movement of its refined fuels, a government source said on Thursday.

Indian refiners are awaiting government directions on whether to continue buying Russian oil after the United States decided to impose fresh 25% tariffs on Indian goods over New Delhi's energy ties with Russia, four industry sources said.

OPEC+ oil producers have used high summer demand to launch their first output increases in three years, but those targets have proved difficult to hit, leaving the market surprisingly tight.

U.S. President Donald Trump on Wednesday said he could announce further tariffs on China similar to the 25% duties announced earlier on India over its purchases of Russian oil, depending on what happens.

For crude prices, oil product cracks and refining margins, please click on the RICs below.

(Reporting by Siyi Liu in Singapore; Editing by Mrigank Dhaniwala)

((siyi.liu@thomsonreuters.com;))

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