$30 a barrel for the next 100 years - OpinionJournal

Huber and Mills: The cost of extracting oil from the earth has not gone up over the past century, it has held remarkably steady. Going forward, over the longer term, it may rise very gradually, but certainly not fast. The earth is far bigger than people think, the untapped deposits are huge, and the technologies for separating oil from planet keep getting better. U.S. oil policy should be to promote new capital investment in the United States, Canada, and other oil-producing countries that are politically stable, and promote stable government in those that aren't. (Messrs. Huber and Mills are co-authors of "The Bottomless Well: The Twilight of Fuel, the Virtue of Waste, and Why We Will Never Run Out of Energy," just out from Basic Books.)