Marathon Sues BP Claiming Poor Maintenance at Refinery

Bloomberg reported that a Marathon Petroleum (NYSE:MPC) unit sued BP subsidiaries over claims they left parts of a Texas City refinery in poor condition.
As quoted in the article:

Marathon in seeking unspecified damages to cover the multimillion-dollar cost of completing plant-wide safety inspections, repairs and upgrades BP allegedly promised to finish before the sale.
BP agreed to sell its Texas City refinery in 2012 for less than it had originally sought. In 2005, 15 workers were killed and hundreds injured at the refinery when a unit used to boost octane in gasoline overflowed as it was being restarted, igniting a blast that shattered windows five miles away.