On 11-Apr-2006, two brand new BNSF SD70ACes (BNSF 9371 and 9370) made their way south over the Joint Line with a TXUX coal train. The train symbol was C-RWMKBB, Coal from Rawhide, WY, to Kirvin, TX.
(Contrary to my first guess, these are not the first two new ACes to ply the Joint Line. That honor goes to BNSF 9376, which was apparently one of the trailing DPUs on a southbound TGNX train last Saturday. Thanks to Tyler Eaton for the correction.)