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11 missing after oil rig explosion

NEW ORLEANS — Rescuers in helicopters and boats searched the Gulf of Mexico for 11 missing workers Wednesday after a thunderous explosion rocked a huge oil drilling platform and lit up the night sky with a pillar of flame. Seventeen people were injured, four critically.

The blast Tuesday night aboard the Deepwater Horizon rig 50 miles off the Louisiana coast could prove to be one of the nation's deadliest offshore drilling accidents of the past half-century.

The Coast Guard held out hope that the missing workers escaped in one of the platform's covered lifeboats.

"We're hoping everyone's in a life raft," Coast Guard Senior Chief Petty Officer Mike O'Berry said.

Nearly 24 hours after the explosion, the roughly 400-by-250-foot rig continued to burn, and authorities could not say when the flames might die out. A column of black smoke rose hundreds of feet over the Gulf of Mexico as fireboats shot streams of water at the blaze.

Adrian Rose, vice president of rig owner Transocean Ltd., said the explosion appeared to be a blowout, in which natural gas or oil forces its way up a well pipe and smashes the equipment. But precisely what went wrong was under investigation.

Crews were doing routine work before the explosion and there were no signs of trouble, Rose said.

A total of 126 workers were aboard the rig when it blew up. The Coast Guard said 17 were taken by air or sea to hospitals. Four were reported in critical condition. Others suffered burns, broken legs and smoke inhalation.

Nearly 100 other workers made it aboard a supply boat and were expected to reach the Louisiana shore by late evening.

Coast Guard experts worked to assess any environmental cleanup that may be necessary, said Mike O'Berry, a senior chief petty officer. The $600-million rig also was listing significantly.

The rig, which was under contract to the oil giant BP, was doing exploratory drilling but was not in production, a Transocean spokesman said.

There have been 69 offshore deaths, 1,349 injuries and 858 fires and explosions in the gulf since 2001.

. fast facts

Deepwater Horizon

A semi-submersible rig with pontoons and a column that submerge when flooded with seawater. The rig doesn't touch the sea floor, but sits low in the water, moored by several large anchors.

Dimensions: 396 feet long and 256 feet wide.

Crew: up to 130; workers typically spend two weeks on the rig, followed by two weeks off

Work: Drilling at a site known as the Macondo prospect, in 5,000 feet of water. The rig is designed to operate in water up to 8,000 feet deep and has a maximum drill depth of about 5.5 miles.

Forty-two deep water rigs are drilling or doing upgrades and maintenance in depths of 1,000 feet or greater in the Gulf of Mexico, according to the federal Minerals Management Service. Since 2001, there have been 69 offshore deaths, 1,349 injuries and 858 fires and explosions in the gulf, according to the agency.

Source: Associated Press

11 missing after oil rig explosion 04/21/10 [Last modified: Wednesday, April 21, 2010 11:42pm]
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