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UPDATE 3-Oil prices rise on sharp drop in U.S. production as hurricanes bite

* Brent crude hits highest level since April 2017

* Harvey knocked out 8 pct of U.S. oil production

* Bigger Hurricane Irma pummels Caribbean, heads for Florida

* Three hurricanes are active in the Caribbean (Adds detail on hurricanes; updates map, prices)

SINGAPORE, Sept 8 (Reuters) - Oil prices rose on Friday as U.S. crude production was hit harder by Hurricane Harvey than expected, with the even bigger storm Irma heading for Florida and threatening to cause more disruption to the petroleum industry.

U.S. West Texas Intermediate (WTI) crude futures were at $49.15 barrel at 00606 GMT, 5 cents above their last settlement.

Brent crude futures, the benchmark for oil prices outside the United States, were up 24 cents at $54.73 a barrel, just shy of their Friday peak of $54.79 a barrel, their highest level since April.

"WTI may break higher as storms limit crude processing ... U.S. oil production facilities haven't fully recovered from Hurricane Harvey," said Fawad Razaqzada, market analyst at futures brokerage Forex.com.

Hurricane Harvey hit the U.S. Gulf coast two weeks ago, and crude prices initially slumped because almost a quarter of the country's huge refinery industry was knocked out by the storm, cutting demand for crude oil, refining's lifeblood.

But as the refinery sector gradually recovers, so is its crude processing.

"Most refineries are restarting and we expect a near-full recovery by month-end," U.S. investment bank Jefferies said.

Harvey's impact was also felt in oil production. U.S. oil output fell by almost 8 percent, from 9.5 million barrels per day (bpd) to 8.8 million bpd, according to the Energy Information Administration (EIA). <C-OUT-T-EIA>

Port and refinery closures along the Gulf coast and harsh sea conditions in the Caribbean have also impacted shipping.

"Imports (of oil) to the U.S. Gulf Coast fell to levels not seen since the 1990s," ANZ bank said.

Traders said it would take weeks for the U.S. petroleum industry to return to full capacity, and that under the current conditions it was difficult to identify fundamental market trends.

"The data for this week and next will be taken with a grain of salt as the underlying trend will be obscured by the effects of the hurricane," said William O'Loughlin, investment analyst at Rivkin Securities.

Even as the oil industry continues to grapple with the fallout from Harvey, a much bigger Hurricane was lashing the Caribbean islands and heading for the United States.

Hurricane Irma, which has become one of the biggest storms ever measured - picking up the Twitter hashtag #irmageddon - on Friday hit the Dominican Republic and Haiti, heading for Cuba and the Bahamas. It was predicted to hit Florida by Saturday.

The U.S. National Hurricane Center (NHC) said that Irma was still a Category 5 hurricane, with wind speeds of 160-185 miles per hours (260-295 km/h).

On Irma's heels, Hurricane Jose is heading for the Caribbean Leeward islands, which have just been devastated by Irma, with wind speeds of 120 mph (195 km/h).

With storm Katia about to hit the Mexican Gulf coast, there are three major hurricanes currently active in the region.

"Any further disruptions in oil and gas production could further extend the rally in energy prices or at minimum keep prices bid (up) until the threat of tropical storms dissipate," said Forex.com analyst Razaqzada.

(Reporting by Henning Gloystein; Editing by Kenneth Maxwell and Joseph Radford)