In May, BP reached a $1 billion settlement with Japan's Mitsui, which held a 10 percent stake in the well. The following month, it struck a $75 million deal with Weatherford International, which provided drilling services at Macondo.
Last week, the Interior Department's Bureau of Safety and Environmental Enforcement began the process of assessing government penalties. It sent notices of alleged violations to BP; Transocean, owner of the BP-leased Deepwater Horizon rig; and Halliburton, whose cement work in the well has come under scrutiny. (Houston Chronicle, 10/17/2011)