The Alberta oil industry was never "sold out" to foreigners. The Alberta oil industry was *built* by foreigners, principally American. Alberta entrepreneurs tried raising money in Canada for many years and couldn't get Bay Street to invest a cent.
geezaz! Before NEP, 14 foreign owned/controlled companies accounted for 82% of Canada's total oil output... working with an ultimate goal/impact to squeeze independents/Canadian companies out of the market. Even at that: it was Canadian investment that fueled actual exploration/drilling/production. It was American multi-national corporation investment that bought/leased land, refined product and built pipelines - all positioned to suck maximum profits into corporate U.S. coffers... while leaving mice-nuts royalties for subservient Canadians in their wake!