NEW ORLEANS — A federal judge is ordering tests to be performed as soon as possible on cement Halliburton Co. used to seal the BP well that later blew out catastrophically in the Gulf of Mexico. U.S.

Reporting from Atlanta and Washington — Weeks before the Deepwater Horizon explosion, oil company BP and subcontractor Halliburton were aware of test results showing that the cement mixture designed ...

WASHINGTON — Tests performed before the deadly blowout of BP's oil well in the Gulf of Mexico should have raised doubts about the cement used to seal the well, but the company and its cementing ...

The presidential commission studying the Deepwater Horizon oil spill released new details on Thursday. The findings indicate tests that Halliburton conducted before the BP spill show the cement that ...

WASHINGTON — Weeks before the Deepwater Horizon drilling rig exploded in the Gulf of Mexico, tests pinpointed problems with the stability of Halliburton's cement foam used to seal BP's doomed Macondo ...

WASHINGTON — Tests performed before the deadly blowout of BP’s oil well in the Gulf of Mexico should have raised doubts about the cement used to seal the well, but the company and its cementing ...

Tests performed before the deadly blowout of BP's oil well in the Gulf of Mexico should have raised doubts about the cement used to seal the well, but the company and its cementing contractor used it ...