Actually, what I referred to was related to Sabine Royalty Trust and the benefits of havine such a Trust.
Keith referred to Sabine as 'the top of the food chain' in the O&G industry.
It is simply owning the royalty rights to leases with producing wells on them.
I guess it's kinda like JG Wentworth, who buys people's annuities and whatnot, usually at a considerable discount and due to impatience or a desire/need for quick cash. It can be considered somewhat predatorial, but that's how money is often made.