10-30-2010 01:47 AM

'The Texas-based Halliburton Company has confessed to pouring a cement mix down BP's Gulf of Mexico oil well without testing the stability of its exact composition.

The company, which was BP's cementing contractor, came under increased scrutiny when investigators from the US president's oil spill commission revealed on Thursday that tests performed by the company before the deadly blowout showed the cement to be unstable. Halliburton's confession comes as it has also admitted to having sufficient evidence that not all mixes were stabilizing well.

The cement mix's failure to prevent oil and gas from entering the well has been identified by BP and others as one of the causes of the largest offshore oil spill in US history.'

Read more: Halliburton Admits Cement Test Failure on Deepwater Horizon