RE:Wisdom 5-1 WellShale oil......this a big con ...to understand how shale oil forms just like the Permian ....year after year for millions of years vegetation sink to the bottom of a sea or lake the is oxygen deprived.....the the silt covers it each year......think about all your leaves falling on the ground and not rotting away ....this is how shale oil is produced over millions of years ....condition must be just so..or you will get gas or coal......even heavy oil ...look at the geology of this area During the time of the dinosaurs ...any geologist that is not pumping up the stock will tell you that ....good luck