RE: WTRThose "other products" - the third that is not oil - contains some valuable stuff.
From https://www.quantexenergy.com/our-process/products
1) Pitch is used to produce carbon materials for the metals smelting industry.
In particular, the aluminum industry reduces aluminum ore in an electrochemical process utilizing carbon anodes. Binder pitch is used as a "glue" to combine anode grade coke. Binder pitch is a material used, along with anode coke, to make solid carbon anodes for the aluminum industry. Binder pitch is also used to produce electrodes for arc furnaces for the steel industry and also is used for materials composites and other miscellaneous purposes.
2) Anode cokes are used in the production of aluminum. Needle Coke is a premium grade, high value petroleum coke, used in the manufacturing of graphite electrodes for the arc furnaces in the metallurgy industry. It can withstand temperatures as high as 28000C.
RDG