McMillan was the chairman and CEO of Permian Exploration Corporation, an oil exploration company, the chairman of the First Federal Savings Bank in Roswell, New Mexico, and the founder and CEO of McMillan Production Company.
McMillan was the chairman and CEO of Permian Exploration Corporation. McMillan was the chairman and CEO of an oil exploration company. McMillan was the chairman and CEO of the chairman of the First Federal Savings Bank in Roswell. McMillan was the chairman and CEO of the founder and CEO of McMillan Production Company. Roswell was New Mexico.