Tierra Oil Company, LLC, Chris Barnhill (Individual Member) Share: GeologistA Full Membership Category Tierra Oil Company, LLC, Chris Barnhill (Individual Member) P.O. Box 700968 San Antonio, TX 78270-0968 (505) 986-0540 Rep Info Map Whom to Contact Chris Barnhill Phone: (505) 986-0540 What's Nearby? Distance: 5 10 15 20 25 50 mi.