Chevron exits Caltex Australia stake for $3.7 bln
March 27, 2015 at 22:35 PM EDT
PERTH, March 28 (Reuters) - U.S. energy giant Chevron sold its entire stake in refiner Caltex Australia Ltd for A$4.7 billion ($3.7 billion) in Asia's biggest block deal this year, as falling oil prices and high costs hurt margins.