What happened to diesel fuel prices in the last two weeks? Gas prices are falling like a rock and diesel prices are climbing like a rocket!

Gas is down to $2.76 in the Conifer/Bailey area. Diesel prices fell to around $3.42 the first part of Nov and literally overnight went to $3.89 gallon.

I know demand for diesel doesn't fall in the winter like gasoline demand does and I know the refining capability for diesel isn't near what it is for gasoline in the US. I'm just curious if there's a reason I haven't heard about.