The Globe and Mail | Oil prices gain as US sanctions on Iran could tighten global supply MarketWatch Oil prices rose on Tuesday with revived U.S. sanctions against Iran seen possibly tightening global supplies, especially after Saudi Arabia's production had also recently contracted. On the New York Mercantile Exchange, West Texas Intermediate futures ... Oil rises as US sanctions on Iran stir supply worries Oil Prices Inch Higher As Sanctions On Iran Kick In Oil Rises as Trump Issues 'Biting' Sanctions on Iran |