The word that we are "running out"
Article | Oil, Oil, Everywhere . . .
"The cost of oil comes down to the cost of finding, and then lifting or extracting. First, you have to decide where to dig. Exploration costs currently run under $3 per barrel in much of the Mideast, and below $7 for oil hidden deep under the ocean. But these costs have been falling, not rising, because imaging technology that lets geologists peer through miles of water and rock improves faster than supplies recede. Many lower-grade deposits require no new looking at all."