Oklahoma Oil and Gas Royalty Owners,

The Anadarko Basin is a a geologic depositional and structural basin centered in the western part of Oklahoma and the Texas panhandle. The Basin underlies nearly 50,000 square miles and contains some of the most prolific natural gas fields in the country such as the Union City (Tigers) Field and the Elk City (Elks, obviously) Field.

Attached is an excellent presentation from the Oklahoma Geologic Society that explains the details. 

More to follow.

BR