“Since the beginning of the shale revolution a decade ago, the world has discovered 110 billion barrels of oil. Meanwhile, consumption has totaled 360 billion barrels. This 250 billion barrel deficit between discoveries and consumption seems sure to grow in the years ahead, given recent oil discovery trends.
“It is understandable why people would be complacent about this scenario. After all, didn’t the world face similar risks a decade ago, only to have shale oil save the day? But it isn’t clear that there is another ‘shale oil miracle’ that is ready to save the day. There are indeed more high-cost oil resources out there that can be developed, but these projects take a long time to complete. That’s why we can look out two to three years and see an impending supply crunch. The longer investments in the industry remain depressed, the more unavoidable this scenario becomes.”
Robert Rapier, a chemical engineer and industry commentator (3/23/18, in Forbes magazine)