Rockwood. 100% Missouri hardwood lump.
I contacted customer service to complain about a rock I found in the bag (previous 20 or so bags never had a thing). The rep explained the whole process to me, how that sometimes it's just inevitable even though they have extensive procedures in place, and because of that, they always add a pound of charcoal over what is advertised on the bag, so that nobody gets ripped off. After all that he even offered to refund my money. No need, just wanted to confirm that there were no changes in quality. I ended up talking to the guy about cars, family in the area, all sorts of stuff...turns out, I was talking to the owner the whole time. Couldn't have been nicer. Said the business was his livelihood and he takes all inquiries seriously. I haven't bought another brand in 3 years.