The Pre-PSR Lease Fleet
Before implementing Precision Scheduled Railroading, the class 1 railroads didn't have enough locomotives to meet their schedules, so they turned to leasing companies to boost their rosters.

A FURX former Burlington Northern SD40-2 and a former NREX Southern Pacific SD40T-2 had a BNSF stack train rolling west on the C&amp;I at Waterman in 2005.

Once PSR took hold, there was no reason for the railroads to lease locomotives as they put hundreds upon hundreds of locomotives into storage gathering dust, rust and graffiti all over the nation.