Fire boat response crews battle the blazing remnants of the off shore oil rig Deepwater Horizon, off Louisiana, in this handout photograph taken on April 21, 2010 and obtained on April 22. The oil drilling rig that had burned for 36 hours in the Gulf of Mexico sank Thursday, April 22nd as hopes dimmed for 11 missing workers and the risk of a major oil spill loomed, officials said. (REUTERS/Ho New)
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A boat deploys oil booms along Port East in the Gulf of Mexico, south of Louisiana April 29, 2010. The leak from a ruptured oil well on the ocean floor off the coast of the southern state is pouring out crude oil at a rate of up to 5,000 barrels (210,000 gallons or 955,000 litres) a day, according to the National Oceanic and Atmospheric Administration - five times more oil than previously thought. (REUTERS/Sean Gardner)
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A British Petroleum (BP) logo is seen at a petrol station in south London April 27, 2010. BP Plc's announcement of a more than doubling of first-quarter net profits on Tuesday, April 27, failed to ease investors' concerns about the impact of a worsening oil spill in the Gulf of Mexico, knocking the company's shares. (REUTERS/Toby Melville)
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British Petroleum Chief Executive Tony Hayward makes his way through the reporters as he leaves the Interior Department in Washington May 3, 2010. Energy giant BP Plc was under siege on Monday over the catastrophic oil spill from its ruptured Gulf of Mexico well, as its shares fell and the U.S. government pressed it to try to limit a major environmental disaster. (REUTERS/Yuri Gripas)
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3D diagram detailing methods being deployed to limit the spread of oil from the Deepwater Horizon rig. (REUTERS/REUTERS GRAPHICS)
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A satellite image taken on April 26, 2010, shows clean up vessels near the oil slick resulting from the explosion of the Transocean Deepwater Horizon oil rig, in the Gulf of Mexico. The massive oil slick from a blown-out well is expected to reach a Louisiana wildlife reserve on April 29, 2010 as it threatens an environmental disaster across four southern U.S. states. (REUTERS/Reuters Photographer)
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Shrimp boats sit idle in the Venice Marina as fishermen await the news of the Gulf of Mexico oil spill in Venice, Louisiana May 3, 2010. U.S. officials closed commercial and recreational fishing in a large swathe of federal waters affected by the growing oil spill in the Gulf of Mexico, the National Oceanic and Atmospheric Administration said. (REUTERS/Joe Mitchell)
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Oil's Movement Through the Ocean Current
Oceanography Professor Marie De Angelis breaks down where the Gulf oil leak is likely to flow as the Gulf spill continues to threaten Gulf Coast.
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Rob Canty from Slidell, Louisiana works on his shrimp boat in Venice, Louisiana May 2, 2010. U.S. officials closed commercial and recreational fishing in a large swathe of federal waters affected by the growing oil spill in the Gulf of Mexico, the National Oceanic and Atmospheric Administration said on Sunday, May 2. (REUTERS/Joe Mitchell)
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U.S. President Barack Obama visits local fishermen after touring the Coast Guard Venice Center in the Gulf of Mexico region to view environmental damage caused by the sinking of BP's oil and gas Deepwater Horizontal drilling rig, while in Venice, Louisiana May 2, 2010. (REUTERS/Larry Downing)
World map with pointers locating the world's major marine oil spills. (REUTERS/REUTERS GRAPHICS)
Debris and oil from the Deepwater Horizon drilling platform float in the Gulf of Mexico after the rig sank, off Louisiana in this April 22, 2010 handout photo. The oil drilling rig that had burned for 36 hours in the Gulf of Mexico sank Thursday, April 22, 2010. (REUTERS/Ho New)