Production of oil from Canadas oil sands has been cut due to the drop in oil prices.
Oil shale is a different animal. There really isn't oil in oil shale.
Oil shale, an organic-rich fine-grained sedimentary rock, contains significant amounts of kerogen (a solid mixture of organic chemical compounds) from which technology can be used to extract liquid hydrocarbons. The name oil shale is a misnomer as geologists would not necessarily classify the rock as a shale, and its kerogen differs from crude oil