When Fairchild got out of the computing business (84/85 ish) it was the huge oilfield services company Schlumberger that bought the AI lab run by Marty Tenenbaum. IIRC S had some Crays and a Connection Machine. Schlumberger Palo Alto was across the street (other side of Foothill Expwy) from PARC. IIRC they had a lot of interesting visualization work; I turned them down (despite their excellent research staff) for PARC because I wanted to work on theory of computation.