Reuters: BP Plc appeared to gain an edge in the battle over liability for the 2010 Gulf of Mexico spill on Friday, after Halliburton abandoned one of its arguments that tried to paint the British oil company as unconcerned about well safety.
Halliburton, which did the cementing work for BP's well, on Thursday pleaded guilty to destroying evidence of internal tests it conducted showing there was no difference between the effectiveness of putting six or 21 casing centralizers on the well.
Centralizers...