You might try ; C.C. Sutton-Coal Sales, over at Gunter Texas. 75058 ph. 214-505-0537. I was over ther and picked up some coal at his ware house. Big space just full of coal and coke.
Try a call, he usually answers right up Some of the guys in the NTBA use the coke and like it a lot. I myself have only burned it a couple of times but seemed to do good.
Roger