No it doesnt its really the same as buying in BULK aka department stores have been doing the same thing forever. And to the OP I read that and found one major big time flaw. Stop buying from certian companies and gee the others will have to suck up the increased demand of oil that is not being bought from the "banned" companies. Gee then were back to square 1 high demand for limited product which is exactly what rockets up prices!!!