You are mistaken. You really, really need to know if you have a rock that was capable of forming and/or holding oil before you go spending a few hundred million dollars on randomly boring holes in the earth's crust. You really, really need a model of how and where that rock (those rocks, really: source, reservoir, and seal) was deposited and perhaps deformed before you set a platform 150 miles from land in mile-deep water.
And let me concede something that will shock you, Faith. A petroleum geologist does NOT need to know that the top of the Permian is 251,000,000 years old to find oil. But the ages of that magnitude are still there, largely as a byproduct of us oilys' doings. The Horseshoe Atoll down beneath my house is a humungous reef - grown in place - that grew there before the Permian ended. It's a reef, Faith: 600 feet thick, 120 miles long. It was deeply eroded in places before it was buried by 6500 feet of evaporites, limestones, and sands/clays. That did not happen in 4300 years. It didn't happen in 4.3 million years. It took a Long Time. And the only viable models that find oil RELY on millions of years for it to have arrived where it is now.
Spindletop and Drake's Folly were then. We are in now.
Radiometric dating appears to work for establishing the order of things whether the actual dates are of any validity or not.
Think on that a while with me. In your Flood model, much of the sediment on Earth was deposited in about a year at most - the early parts of the flood. That would mean that in order for radiometric dating to get "the order of thing" correct, its methods would have to be able to tell that Ordovician rocks are older than Cretaceous rocks, and to distinguish ages between those two. So 4301 years would have to be measurably older than 4300 years by one or more of those radiodating schemes.
The problem is that radiometric dating isn't that good. The Tunnel of Siloam (ol' Hezekiah's work from 2 Kings) has been dated with very close attention to detail, and returned dates of 2823 +/- 13 years at their best accuracy. The destruction of Pompeii, similarly, was dated to an accuracy of +/- 94 years.
So how would it be that a floodist age of 4300 years plus 360 days could return a old-earth radiometric date of 450,000,000 years, while 4300 years plus 300 days gives a Cretaceous date of 66,000,000 years? If radiodating can actually return the correct order of things, those things must be spread over more than one year of flooding.