Actually we still have lots of oil, it's just mostly processed elsewhere now. The Sturdie Motor Oil company was based in Lethbridge Alberta and the last time I was in Alberta, possibly 1995, this brand of oil was for sale at a gas station I stopped at. Since that time they seem to have disappeared. I can find very little online.
"The most recent list of Alberta incorporated companies that our researcher
has (1997) shows Sturdie Oils Ltd. was incorporated in Alberta in 1947 and as of
1997 was still operating."