I love your optimism. I do not expect to see energy prices come down in my lifetime, even if the Ocean turned to fuel.
Oh It will drop a little for a short while every now and then to tease us, but the Government has it just about where they want it for right now.
The most recent example is the price of NG and how newly discovered abundant shale gas affected and gave us a three fold drop almost overnight.
My optimism is based on observing the history of the oil patch close up. Boom or Bust, rarely stable. When demand overcomes supply drilling booms, everyone that can beg, borrow or build a drilling rig jumps on and next is an over-abundance and bust.
I do expect that NG could finally bring some long-term stability because there is so much they can valve it on and off to better match demand. If shale gas plays out the next and much more plentiful source is yet to be developed hydrolized methane.