Oil services giant Halliburton Co. will shift its corporate headquarters from Houston to the Mideast financial powerhouse of Dubai, chief executive Dave Lesar recently announced. The announcement signals one of the highest-profile moves by a U.S. corporate leader to Dubai, an Arab boomtown where free-market capitalism has been paired with some of the world’s most liberal tax, investment and residency laws. “The eastern hemisphere is a market that is more heavily weighted toward oil exploration and production opportunities and growing our business here will bring more balance to Halliburton’s overall portfolio,” Lesar explains.