That's exactly why this oil rig, Dallas cowboy thing seems more plausible to me after reading this;
Costello big in slots and coin operated gambling machines, Jerry Catena obviously cut in, right in the link, investments in oil fields and land in TEXAS and Oklahoma.....
But I would have to verify the Cowboys thing, I imagine that would be something kept hush, but then again he was the owner of a big legal company, maybe before the senate hearings?