Theoretically, book authors could “hire” everyone needed to turn a popular book into a movie. But in practice they sell the rights to develop the property to a studio in return for a cut of the profits.
Before the Renaissance, rock-oil/petroleum was used mostly for waterproofing as tar, with a few other medicinal and military uses.
The real point is not what the oil was used for, but that the oil fields were not particularly hard to find.
From Alexander the Great to Al Masudi, there are plenty of records of oil pools and puddles throughout Persia and Arabia
https://archive.aramcoworld.com/issue/199505/land.of.the.nap...
Those who had the tech, capital and expertise in the end just lined up in front of Saudis to be hired.
Bootstrapping via external investors experienced in the sector is way faster, but comes with costs, as shown in the deals here. But that's true in every market.