Interfuel Competition Act

Interfuel Competition Act - Amends the Clayton Act to make it unlawful for any corporation simultaneously engaged in the production and refining of petroleum and in the marketing of petroleum products from: (1) acquiring any coal, oil shale, tar sands, uranium, geothermal steam, or solar energy asset after the enactment of this section; or (2) owning or controlling any such asset after the expiration of three years following the enactment of this Act.

Requires companies subject to the provisions of this Act to file reports with the Attorney General and the Federal Trade Commission. Directs the Attorney General and the Commission to take appropriate enforcement action in the United States courts.

Imposes criminal penalties of up to $100,000 in fines and/or imprisonment of up to ten years for knowing violations of this Act.