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 ...

WASHINGTON — Halliburton Co. acknowledged that it skipped a critical test on the final formulation of cement used to seal BP's oil well before it blew out catastrophically in the Gulf of Mexico. The ...

Halliburton Co. acknowledged late Thursday that it skipped doing a critical test on the final formulation of cement used to seal the BP oil well that blew out in the Gulf of Mexico. The company, which ...

WASHINGTON (AP) — Halliburton Co. acknowledged that it skipped a critical test on the final formulation of cement used to seal BP’s oil well before it blew out catastrophically in the Gulf of Mexico.

Crews working to seal BP’s blown-out well in the Gulf of Mexico once and for all need to finish one more test on a cement plug before declaring the well permanently dead, officials said Satuday. Once ...