Three Union Pacific cars derailed on the north end of the Cherokee Yard in west Tulsa.
From Osage SkyNews 6 HD we can see that the cars appear to be blocking the main entrance to the Holly Frontier Refinery.
Union Pacific said two locomotives and a tank car derailed and the rest of the train was moved.
BNSF will be working to re-rail the locomotives.
There were no injuries or spills.
It’s not clear what caused the train to jump the tracks.