How does the capital-intensive nature of the oil industry affect the economy of a petro-state?

What non-petroleum source did the Japanese pursue desperately for fuel toward the end of the war?

What did the Pennsylvania oil producers do in the late 1870’s that caught Standard Oil by surprise and interrupted the company’s control of the oil industry?

Why did the British want American involvement in Middle East oil after World War II?

In what did Churchill believe that safety and certainty in oil could be found?

Where was the first source of oil for Royal Dutch?

How much of America’s refining capacity was controlled by Standard Oil in 1879?

How did Shah Reza Pahlavi respond to the loss of royalties from Anglo-Persian due to the Depression?

In what way did the discovery of oil at Masjid-i-Suleiman in Persia mirror the discovery in Titusville half a century earlier?

Where did Columbus “Dad” Joiner insist (rightly) that there was oil, despite significant pushback?