Rail shipments of petroleum products within the United States are up about 33% since just two years ago. Going back even further (second chart below) one can see how much this segment of the rail shipping industry has grown.
This is proving to be a huge boom for America. So what happens if oil prices remain too low for domestic shale extraction to make economic sense? How much of the recent US economic strength is dependent on shale production and its secondary and tertiary benefits?