All-puppet animation tells the story of how oil is formed through ages of geological change, how it is found, extracted and put to use by man.
| Actor | Role |
|---|---|
 Conrad NagelThe Voice of Oil (voice) | The Voice of Oil (voice) |
 H.B. WarnerThe Voice of History (voice) | The Voice of History (voice) |
 Gayne WhitmanThe Geologist (voice) | The Geologist (voice) |
 Will WrightThe Professor (voice) | The Professor (voice) |
| JJohn MatherThe Barker (voice) | The Barker (voice) |