As Canada looks to untangle itself economically from the US, the country's landlocked oil patch is eyeing new customers in Asia through a pipeline to the Pacific. Not everyone is on board. The oil-rich province of Alberta has had one demand for Prime Minister Mark Carney: Help us build an oil pipeline — and fast. It's no small task — in fact, some argue it has become near-impossible to build a pipeline in Canada because of laws designed to bolster environmental protections. Three oil pipelines