They do work in the refinery biz. I've heard their name as "C-H-2-M-Hill."
Thanks! So, it's just spelled out like it is? Ha, I tried to think "Chuh-two-em Hill" or "CH-squared-M Hill" or something like that. If the 2 were an 8, it would make a word. Seems like it was several partners' last name initials and there were 2 H's, then a merger with the Hill company, so "C" "H2" "M" "Hill". Oh well, curiosity satisfied.