R11 was Dispatched at 01:56 hours to Americold Logistics for a reported Fuel Spill in the parking lot. Rescue Company arrived to find a trailer that fell off a jockey truck and ruptured a saddle tank. Approximately 50 Gallons of Diesel Fuel was spilled from the tank. The Company applied 350 Lbs. of Oil Dry to Contain the spilled contents. The R11 was placed back in service at 03:15 Hours.