Squire runs predominantly single driver tractors hauling 53-foot trailers. For years, Squire has relied on reltively inexpensive diesel fuel and nonunion drivers to keep its operating costs low. The location of its major customers requires either bobtaling tractors (re positioning without pulling trailers) or dead-heading equipment (running tractor-trailers empty) to pick up loads for delivery. These practices worked well when diesel prices were at the $1-per-gallon level.