UPDATE 1-U.S. transparency reversal stings Canadian, European oil firms
February 03, 2017 at 09:07 AM EST
HOUSTON/CALGARY, Feb 3 (Reuters) - A reversal of U.S. transparency requirements for the natural resources industry could give American oil companies an edge over Canadian and European rivals who face some of the toughest rules in the world, according to company executives, legal experts and trade groups.