Can you source your info that an energy company paid for the trip? From what I know, Scalia was a guest of Cheney. No big deal, from my perspective.
It was a private reserve owned and operated by a Louisiana oil exec. It is assumed that both were comped for the trip. The details are still murky. Scalia got a free ride on AF 2 and a free hunting trip at a retreat owned by an oil exec though. That much is not in dispute.
It wasn't a very bright idea.