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NEW ORLEANSNEW ORLEANS — BP says the cement sealing the busted oil well in the Gulf of Mexico has hardened as crews prepare for the final phase of drilling a relief well. The oil giant said Sunday ...

One year after a deadly oil-rig explosion set off the worst offshore spill in U.S. history, the environmental minefield of abandoned wells in the Gulf of Mexico is worse than first thought, with no ...

NEW ORLEANS -- BP says the cement sealing the busted oil well in the Gulf of Mexico has hardened as crews prepare for the final phase of drilling a relief well. The oil giant said Sunday that pressure ...

The tricky process of sealing an offshore oil well with cement - suspected as a major contributor to the Gulf of Mexico oil spill disaster - has failed dozens of times in the past, according to an ...

A cement plug finally has permanently sealed BP’s leaking well nearly 2.5 miles below the sea floor in the Gulf of Mexico. The end came five months after an explosion sank a drilling rig and led to ...

Without those plugs, there is little to prevent powerful leaks from pushing to the surface, so these wells could be an even greater environmental threat than wells that have been sealed and classified ...