Mr. Piero Ruffinengo is Independent Director of Apco Oil and Gas International Inc., since April 2002. Mr. Ruffinengo has been engaged in the private practice of law in Salt Lake City, Utah since 1984. He served the Company as a consultant from 1984 through 1999. Mr. Ruffinengo served in a variety of positions for Northwest Energy Company (“Northwest Energy”) and its subsidiary, Northwest Pipeline Corporation (“Northwest Pipeline”), from 1975 to 1983, when Northwest Energy was acquired by Williams. Those positions included General Counsel of Northwest Pipeline and the Company, Vice President of Mergers and Acquisitions, and Vice President of International Operations. Over his career, Mr. Ruffinengo has practiced law in the areas of corporate governance and compliance, commercial transactions, oil and gas law, intellectual property, finance, and domestic and international litigation. He served as a director of Petrolera at various times in the past and most recently from 2002 to 2003.