EMD 9010, BN 5525, BN 5536, and EMD 9084 are about to be ousted as kings of coal as the AC's are just beginning to arrive in force when this photo was taken.
Oakway 9075 leads the empty Clay Boswell coal drag south (RR east) on the Hillsboro Sub. Note that you can still see the "GM" on the lead unit's nose...
After switching crews in the yard, Oakway 9075 and TFM 1621 (about as far away from Mexico as she can get) head west (RR east) on the Hillsboro sub. I-29 is the overpass in the background.