Bloomberg reports, citing Macquarie Capital USA as the source, that despite record rail tank-car orders in 2014, tank-car manufacturers may be facing a decline in new bookings by as much as 70% in 2015 putting earnings at risk when scheduled deliveries drop in 2016.

Bloomberg said oil prices down 49% since June have crimped investment in U.S. fields including the Bakken range, where horizontal drilling and hydraulic fracturing is more expensive than conventional oil drilling.

Bloomberg notes that tank-car maker stocks have suffered amid the oil price decline, with shares of Trinity Industries, American Railcar and Greenbrier dropping 40%, 30% and 27%, respectively in the fourth quarter.

To view the full Bloomberg report, click here.