RPT-Bountiful U.S. oil changes nature of game for producer Apache
December 19, 2013 at 07:00 AM EST
HOUSTON, Dec 19 (Reuters) - On a wall inside an old hunting lodge in west Texas that Apache Corp uses as a field office, a board lists the winners of $10,000 prizes given to workers with big ideas to cut costs - the new way to get ahead in North America's shale oil industry.