How many millions of years did it take for the carbon matter that is converted to oil to submerge through sedimentation and subduction to depths with sufficient pressure to create oil?

How many times has the earth turned over and buried enough carbon in the 4 billions years?

Those things are finite and so is the supply. I worked forty plus years in the industry, and I've seen many reserviors depleted of profitable volumes of oil and gas. You can go back into those reservoirs decades later and still the pressure cap is gone, and the oil volumes low. Sometimes the price of oil and make marginal reservoirs profitable again, but by an large the new production in new reservoirs is the product of technoligical advances in horizontal drilling and fracking. Many of these 'new' reserviors have been known for years, but were not feasible to produce without the new technologies.

Do you understand why the cabal has attacked fracking in the US as an environmental hazard? They know the technology opens up those tight reservoirs and can for a time make America oil independent.

Make no mistake one day humanity will have to find an alternative to oil and gas, or go back into the stone age. I don't see anything on the horizon that will be that replacement and still feed, cloth, and house eight billion people.