MarketWatch | Brent crude eases, while lower Canadian supply boosts US futures Reuters Logistical constraints in the United States have even caused prices for regional grades to diverge. [CRU/C]. “Less crude oil is being transported from Canada to Cushing due to the restricted capacity of the Keystone pipeline. And for another, new ... US oil benchmark narrows gap with Brent crude Shale oil will contribute to future crude price instability US Oil's Costly Again as It's Stored Less and Shipped Abroad More |