South Korea tests U.S. super light oil as Iran waiver uncertainty grows -sources
By Devika Krishna Kumar and Florence TanNEW YORK/SINGAPORE, April 4 (Reuters) - South Korea has begun testing super-light U.S. oil sold by energy firm...
By Devika Krishna Kumar and Florence TanNEW YORK/SINGAPORE, April 4 (Reuters) - South Korea has begun testing super-light U.S. oil sold by energy firm...