Crude stockpiles down by 11.5 million barrels API
Saudi official selling prices for October likely to rise
Hurricane Idalia and Gabon coup could hit supply

LONDON, Aug 30 Reuters Oil prices extended gains on Wednesday after industry data showed a large draw in crude inventories in the U.S., the world39;s biggest fuel consumer, and as a hurricane in the Gulf of Mexico kept investors on edge.

Brent crude futures for October rose by 55 cents, or 0.64, to 86.04 a barrel by 1114 GMT. The October contract expires on Thursday and the more active November contract was at 85.42, up 51 cents.

U.S. West Texas Intermediate crude futures rose 59 cents, or 0.73, to 81.75.

Both benchmarks rallied by more than a dollar on Tuesday as the U.S. currency weakened after soft U.S. job data reduced the likelihood of further increases to interest rates.

U.S. crude stocks fell by a bigger than expected 11.5 million barrels in the week ended Aug. 25, market sources said, citing American Petroleum Institute figures on Tuesday.

The drop suggests firm demand, said Fujitomi Securities analyst Toshitaka Tazawa.

Investors also had an eye on Hurricane Idalia as it moves over the Gulf of Mexico to the east of major U.S. oil and natural gas production sites. The region accounts for about 15 of U.S. oil output and about 5 of natural gas production, according to the Energy Information Administration.

Oil major Chevron Corp evacuated some staff from the region but production was continuing.

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