Complicated facts but easily understood legal standards were presented in Breaux v. Halliburton Energy Serv., Inc., No. 04-1636, 2009 U.S. Dist. LEXIS 112374 (E.D. La. Dec. 2, 2009).
Era Aviation, Inc., a subsidiary of Rowan Companies, Inc., transported oil field workers by helicopter to an offshore drilling vessel in the Gulf owned by Unocal.