NEW ORLEANS (AP) – A man who worked for BP’s cement contractor on the drilling rig that exploded in the Gulf of Mexico in 2010 testified Tuesday that he didn’t believe the oil giant’s employees were risking workers’ safety when they didn’t follow his recommendations.

Halliburton employee Jesse Gagliano, a witness for his employer at a trial over the Deepwater Horizon disaster that killed 11 people, said his relationship with employees for London-based BP PLC deteriorated amid disagreements about how to perform the cement job that ultimately failed to seal the BP-owned well.