A committee of lawyers representing businesses and individuals claiming damages from the 2010 Gulf of Mexico oil spill announced a $211 million settlement Wednesday with Transocean Ltd., owner of the ill-fated Deepwater Horizon drilling rig. In a separate development, oil giant BP - which leased the rig from Transocean - reached settlements resolving years of complicated spill-related litigation with Transocean, and with contractor Halliburton, which did cement work on the rig before it exploded in April 2010.