Environmental activists and concerned individuals ask for an immediate freeze of any new investment in coal, oil or gas companies. (dw.com)
New ways to improve aerodynamics of planes and vehicles of all kinds or controlling the flow of oil or gas in pipelines would open up, just to name a few. (sciencedaily.com)
By indirect consumption of petroleum I am thinking of such things as electricity from oil or gas fired power stations. (ramblingsdc.net)