Secret Agent (Dangerman)
I have to link to an early British TV reference regarding oil depletion from the wilderness.
Here is the transcribed dialog:
Agent 1: Do you realize, Mr. Drake, that within a few decades that all the known oil reserves in theworld will be completely exhausted. Every petrol engine in the world, every jet, every diesel will have come to a halt. Their tanks will have run dry. Mark my words, the country that controls the last productive oil fields will be able to dictate terms to all the others.
John Drake (Patrick McGoohan) : Which country will that be?
Agent 1: Well it won't be England, I can tell you that.
Audio and video available from the site.