NEW YORK (Reuters) - As a test of wills between OPEC nations and U.S. shale drillers fuels a global oil market slump, a brewing battle between Canadian and Saudi Arabia heavy crudes for America's Gulf Coast refinery market threatens to drive prices even lower.

from Reuters: Most Read Articles http://ift.tt/14hRjHm http://www.reuters.com
from Reuters: Most Read Articles http://ift.tt/14hRjHm http://www.reuters.com