Union Pacific's 'Chevron Job' pulls 14 tank cars along the former D&RGW Ogden mainline in Salt Lake City. The UPY 1453 is an MP15AC, built the SP 2725 by EMD in Sept. 1975. The HLCX 1064 (now a GP38-2) was built a GP40 by EMD as the MKT 223 in Nov. 1969.