Ms. Keeth, 67, was Executive Vice President of Royal Dutch Shell plc, an energy company, from 2005 to 2006. In this role, Ms. Keeth was accountable for Shell’s global chemicals businesses, which produced $36.3 billion in third party revenue in 2006 and operated in 35 countries. From 2001 to 2006, she was also President and Chief Executive Officer of Shell Chemicals LP, Shell’s U.S. operating company through which it conducted all of its operations in the United States. During her 37-year career, Ms. Keeth held multiple positions of increasing responsibility at Shell, including serving as Executive Vice President, Finance and Business Systems, and Executive Vice President, Customer Fulfillment and Product Business Units. In addition, from 1996 to 1997, Ms. Keeth was controller and principal accounting officer of Mobil Corporation.

Ms. Keeth’s extensive senior leadership experience at Shell, a complex global business organization, positions her well to advise the Board and senior management on a wide range of strategic and financial matters. Ms. Keeth brings to the Board, among other skills and qualifications, valuable business, leadership and operations management experience in a global, capital-intensive business. As a result of this experience, she is able to provide insights into many aspects of our business, including business systems, public accounting and finance. Ms. Keeth also has extensive expertise in international operations and strategic partnerships, which assists the Company in implementing our growth strategies.

Ms. Keeth has served as a Director of Verizon since 2006. She is Lead Director, Chairperson of the Corporate Governance and Policy Committee and a member of the Audit Committee and the Finance Committee. She is also a director of Arrow Electronics, Inc. (since 2004) and, in the past five years, she has served as a director of Peabody Energy Corporation.