BNSF, which has come under scrutiny this year from the U.S. Surface Transportation Board over late grain deliveries, has told some oil shippers its network can’t accommodate more tank cars.

The Missouri Department of Transportation says private and for-hire motor carriers will be able to haul corn, soybeans and other grains at heavier than normal weights.

Wisconsin businesses that produce everything from cheese to gravel are concerned about delays in shipping as railroads divert cars to serve Canada’s grain farmers and North Dakota’s oil industry.

Canadian Pacific Railway Ltd.’s megamerger ambition may whet the industry’s appetite for deals.

Farmers adapt to life amid oil boom, big harvests

Adequate capacity during demand surges is key to export efficiencies