9. Mesa Vista Ranch – $250 Million
The Mesa Vista Ranch belongs to T. Boon Pickens, Chairman of BP Capital Management. This ranch features 101 square miles of rivers, hills, mesas, and artificial lakes. It also has a two-story pub, a nine-hole golf course, a dog kennel, a chapel, an art gallery, a private airport, and a 33,000 square foot main house that has a library, a movie theatre, and a wine cellar.