Mr. Spiller is the President and CEO of Azimuth Energy Investments LLC, a company focused on technical and commercial valuation of domestic and international oil and gas properties. Previously he was the Chief Operating Officer for Allied Energy, and was formerly the Honorary Consul General of Sierra Leone. Prior to Allied Energy he was the co-founder and Chief Scientist for Frontera Resources Corporation.

Mr. Spiller did his public service with the US Government as the Deputy Assistant Secretary for Gas and Petroleum Technologies at the United States Department of Energy. Prior to joining the Department of Energy, Mr. Spiller was the International Exploration Manager for Maxus Energy Corp. In addition, he worked both domestically and internationally for Elf Aquitaine Petroleum.

He began his oil and gas career with Exxon USA in Houston Texas. His experience spans more than fifty countries where he has worked as a geoscientist and businessman. He is a former member of the Board of Natural Resources for the National Academy of Science.

He is a Past President of the National Association of Black Geologists and Geophysicists and he is actively involved in promoting the Earth and Engineering sciences to a variety of academic institutions.