All oil and gas commercial production is in sedimentary basins. They are sourced to ancient ocean, lake and river bottoms where organics like algae and plankton were trapped in sediment away from a source of oxygen to complete decomposition. Heat becomes an issue and fields are describe in terms of "thermally mature". More heat and time takes the breakdown further creating more smaller hydrocarbon molecules like propane, ethane & methane. Less thermally mature fields have more heavies like bitumen.
Places in the world with essentially no sedimentary basin but with lots of mantle activity pushing up from underneath have little to no oil gas fields fields, like Hawaii.
That has to do with the fact that sedimentary rock is porous and it accumulates there from below. It isn’t that it is necessarily created there.
And of course, hydrocarbon oceans are found on other planets that had no records of Dinosaurs and forests.
Hydrogen and carbon are 2 of the top 4 elements found in the universe. They readily combine. And we are told to believe that on earth they cannot possibly come from down deep. Finding gas and oil in sedimentary formations, and saying it must form there naturally, is like seeing people getting off airliners and deciding that airliners create people.
The fact that a hot deep earth theory would still predict that we would find the oil and gas where we do, negates the Hawaii point.
Hawaii is a red herring. Hawaii is the tallest mountain on earth. It’s a 33,000 foot volcano of which about 13,000 stands above the water. It would be bizzare for oil and gas to have ever accumulated there from activites below the plates. Nobody would be surprised to not find oil and gas fields in the top 30% of Mount Everest.