CNBC | Futures File: Crude oil catches fire Casper Star-Tribune Online Oil prices exploded to a six-month high this week as global production outages threatened to crimp supply. Wildfires in Canada cut off production in some of Alberta's major oil fields, while fighting factions in Nigeria have led to production cutbacks ... US oil closes 1.1 pct lower, but gains more than 3 pct for week Oil glut 'may be easing' as non-Opec producers cut back Supply disruptions push oil prices higher |