BP Plc, Transocean Ltd and Halliburton Co are all back in the hot seat in Washington over their responsibility in what could be the worst oil spill in U.S. history.
After a day of hearings on Tuesday where company officials traded blame for the April 20 rig explosion and oil spill, a U.S. House of Representatives panel said it had uncovered significant problems with a safety control mechanism on BP’s oil well that could have contributed to the accident.