The Permian Basin isn't the only oil field facing pressure from pipeline bottlenecks. :
While global oil prices have climbed almost 20 percent this year, producers in Alberta and British Columbia’s shale formations are seeing just the opposite, stymied by a lack of sufficient infrastructure to bring their light oil to market. As Canada pushes for more pipelines to move its oil-sands output, two existing conduits that ship from shale are so full that space is being rationed.