Ahhh Grasshopper...you can't stabilize the price at $15 and expect it to last.Investment dries up, and then you get spikes like we saw from late '98 to earlier this year, where oil went from $9 to over $36 a barrel.
Come visit me in the mailroom and I'll explain business to you, and a wee lesson in economics, no charge..;-)
My dear Habs, if you truly understood economics, you wouldn't be in the mailroom. ;-)