Only naturally fractured basement rock with oil production also in the sedimentary layer directly on top of the cracked granite.
Which could well be true.
True in every case.
Do you understand oil is often found in layers, of different qualities, in the same area with capstone that doesn't allow it to migrate up? Each layer with its own capstone?
Do you understand that using “do you understand” before each of your opinions makes you a manipulative jerk who resorts to mockery to support his supposedly scientific arguments? Do you understand that that inherently undermines the legitimacy of your arguments? Do you also understand that your use of this crude verbal technique to argue by mere implication is not hidden?