Halliburton Co.

Retired Senior Vice President and Chief Financial Officer, Aetna, Inc. (a leading provider of health, dental, group life, disability and long-term care benefits); Senior Vice President and Chief Financial Officer, Aetna, Inc., 2001-2007; Vice President and Corporate Controller, 1998-2001; Vice President and Director of Internal Audit, 1997-1998; Chief Financial Officer, Aetna Business Resources, 1995-1997; joined Halliburton Company Board in 2006; Chairman of the Audit Committee and member of the Nominating and Corporate Governance Committee; Director of Bausch & Lomb.

DAVID J. LESAR, Chairman of the Board, President and Chief Executive Officer of the Company, since 2000; President of the Company, 1997-2000; Executive Vice President and Chief Financial Officer, 1995-1997; joined Halliburton Company Board in 2000; Director of Lyondell Chemical Company.

"Mark McCollum is Executive Vice President and Chief Financial Officer for Halliburton. He is a member of the Company’s Executive Committee. Previously, he was Senior Vice President and Chief Accounting Officer. Prior to joining Halliburton as CAO in 2003, Mr. McCollum served as senior vice president and chief financial officer for Tenneco Automotive. Before that, he was vice president of Corporate Development for Tenneco Inc. He initially joined Tenneco as vice president for Financial Analysis and Planning in 1995, adding the title and responsibilities of corporate controller that same year. Before joining Tenneco, Mr. McCollum spent 14 years with Arthur Andersen, and served as an audit and business advisory partner of the firm’s worldwide partnership from 1991 through 1994. Mr. McCollum serves on the board of directors for Exterran Partners, LP, a master limited partnership providing natural gas compression services to customers throughout the U.S. He also serves on the board of trustees for Houston’s Star of Hope Mission and the Foundation for the Retarded. Mr. McCollum has a bachelor’s degree in business administration from Baylor University. He is a certified public accountant in Texas, and a member of the American Institute of Certified Public Accountants, the Texas Society of Certified Public Accountants, the Institute of Management Accountants and Financial Executives International. "

"Tim Probert is President of Halliburton’s Drilling and Evaluation Division and Corporate Development, and Acting Vice President of Technology, where he leads the Company’s efforts to expand Halliburton’s strong business portfolio, and oversees the Company’s supply chain management, and mergers and acquisitions. He is also a member of Halliburton’s Executive Committee. Previously, Mr. Probert was Executive Vice President of Strategy and Corporate Development for Halliburton. Prior to that role, he led Halliburton’s Drilling and Evaluation Division as its Senior Vice President. In this role, Mr. Probert was responsible for the Sperry Drilling Services, Security DBS Drill Bits, Baroid Fluid Services, Wireline and Perforating Services and Landmark product lines. Mr. Probert has widespread industry experience. Before joining Halliburton in 2003, he served as President and Chief Executive Officer of Input/Output Inc. He was also President of Baker Hughes INTEQ. In addition, Mr. Probert was the President of Eastman Teleco. He served as President of Milpark Drilling Fluids, and he was Vice President of marketing for Baker Sand Control. Mr. Probert began his career in 1972 as a field geologist with Exploration Logging Inc. He received his bachelor of science degree in geology and geography from the University of London in 1972. "

Galen Cobb is vice president for industry relations for Halliburton. He has worked for Halliburton for over thirty years, serving in executive management positions in operations, marketing, sales, and business development.

Jonathan Lewis is Halliburton's Account Vice President for ExxonMobil. Dr Lewis joined Landmark Graphics Inc. in 1996 as Vice President, Geology and Reservoir Engineering. Over the last ten years, he has held various executive management positions at Landmark and Halliburton, covering technology development, marketing, corporate strategy, business development and sales operations. Dr Lewis also serves as the Chairman of the Board of POSC. He holds a Bachelor of Science degree in Geology from Kingston Polytechnic (1984) and a Doctorate in Reservoir Description from the University of Reading (1987).

With a 35-year career track record, Mr. Odell has had progressive sales, marketing, operations, and executive positions in software and energy-based companies. He has been on management teams that rapidly grew software companies through the IPO process, and has led several significant acquisitions and divestitures. Most recently, Mr. Odell was Vice President and General Manager, Energy Division, with MetaCarta, Inc., where he successfully developed the product line, positioning, and infrastructure needed to support the development of MetaCarta's energy business. Mr. Odell was instrumental in developing the operational expertise to build this sector into a revenue generating business. Prior to joining MetaCarta, Mike was President and CEO of Elumens Corporation, where he orchestrated a successful turnaround and increased the annual revenue by more than 800% in a four-year period. Hel was successful in re-capitalizing and re-branding the company, developing new generations of products, initiating and developing the sales channel including partnering with Fortune 500 companies, and raising three rounds of venture capital.

Christopher Usher is Senior Director, Technology, for Halliburton's Landmark product service line. Before joining Landmark, Mr. Usher was Senior Corporate Vice President, Services, at Paradigm. Mr. Usher has a 23-year track record in the upstream E&P industry. He has general management experience in geophysical services and associated technology development, characterized by building successful organizations, either incrementally or in turnaround situations, while staying in touch with technology and customers. Mr. Usher earned a geology and geophysics degree from Yale University. He spent 17 years with Western Geophysical, starting in field operations and rising to Vice President, Data Processing, and Vice President, Technology. In 2000, he moved to PGS as President of its global Data Processing division, overseeing operations and software development. He joined Paradigm in 2003 to develop its services business. At Landmark, Mr. Usher is enjoying the tremendous breadth of technology as well as the depth of talent and energy for success within the Technology organization.

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Ken R. LeSuer was elected Chairman of PDTI in December 2004 after serving as Vice Chairman of PDTI since June 2004. Mr. LeSuer retired in 1999 as Vice Chairman of Halliburton Company. Since his retirement from Halliburton in 1999, Mr. LeSuer has been a private investor. Prior to becoming the Vice Chairman of Halliburton in May 1997, Mr. LeSuer served as both the President and CEO of Halliburton Energy Services from March 1994 to September 1996 and as President and CEO of Halliburton Energy Group from September 1996 to May 1997. He also served as President and CEO of three Halliburton units during his tenure. Mr. LeSuer began his career with Halliburton as an engineer-in-training in 1959. From 1965 through 1982, he served in managerial positions in Asia Pacific and Europe/Africa and was serving as vice president of Europe/Africa before returning to Duncan, Oklahoma to assume the position of vice president of International Operations in 1982. Mr. LeSuer was a member of the Texas A&M University Petroleum Engineering Industry Board, as well as the TAMU Dwight Look College of Engineering External Advisory and Development Council. He has served as Vice President Services Division of the International Association of Drilling Contractors, and is or at one time was a member of numerous petroleum and geological engineering societies, including Society of Petroleum Engineers, the American Petroleum Institute, the National Ocean Industries Association, and the Petroleum Equipment Suppliers Association. Mr. LeSuer received his bachelor's degree in petroleum engineering from Texas A&M University in 1959. Mr. LeSuer is also a director of Horizon Offshore, Inc. (NNM: HOFF).

Experience: In his pre-legal career, Michael worked for ten years as an environmental/geological engineer for Halliburton as an EPA contractor cleaning up Superfund sites all over New England, and with Cortell & Associates on the Boston "Big Dig" project.

Mona is a native Houstonian and 8th generation Texan! She has held her real estate license since 1978 and has specialized in the relocation industry for the last 12 years. As a Certified Relocation Professional she maintains a strong emphasis on customer service and working as a team with the realtor community. Mona brings that expertise to Halliburton as their Lead Relocation Administrator.

Thomas W. Mariano has 23 years of experience as a service engineer for international oil companies, including 10 years of field mechanic responsibilities for Halliburton, Inc. With purchasing contacts in more than 60 countries around the world, Mariano works closely with engineers for research and development and oversees manufacturing and sourcing for MedivoxRx

Bob Crandall is the retired Chairman and Chief Executive Officer of American Airlines and chairman of The SABRE Group. As American's top marketing executive, and subsequently as the airline's president and chairman, Mr. Crandall participated in developing many of the innovations that stand to American's credit. These include American's SABRE automation system; the AAdvantage program for frequent travelers; a series of major hubs at Dallas/Fort Worth, Chicago, Miami and San Juan and the creation of a wide-ranging international route system. Today, Mr. Crandall serves on the Boards of MilePoint, American Express, and the Halliburton Corp.

Reed became president of SDG&E in July 2000. In January 2002, she also became president of SoCalGas and chief financial officer (CFO) of both SDG&E and SoCalGas, and became president and COO of both companies in May 2004. Before that, Reed served as president of Energy Distribution Services at SoCalGas, overseeing the company's operations for residential, small-commercial and industrial customers. From 1995 to 2000, she served as senior vice president of SoCalGas. From 1984 to 1994, Reed held leadership roles with SoCalGas, including vice president of Human Resources, vice president of Administrative Services, manager of Environmental Engineering and manager of Personnel Relations. In 1983, she served as area market-services manager after five years of working in marketing. Reed joined SoCalGas in February 1978 as an energy systems engineer and, in 1988, became the first female officer appointed at the company. Reed serves on the board of directors for Halliburton Co.; the University of Southern California College of Letters, Arts and Sciences; the San Diego Regional Economic Development Corp.; and Genentech. She is a member of The Trusteeship, an affiliate of the International Women's Forum. Reed also served on the board of Dominguez Services Corp. prior to its acquisition. In 2004, she was awarded "Woman of the Year" from the California Science Center and was named one of San Diego magazine's "50 People to Watch." Reed received the 23rd Annual Tribute to Women and Industry (TWIN) Award from the YWCA of San Diego County in 2002. She received the League of Women Voters Glass Ceiling Award in 2000. Reed was featured on the cover of the July 2002 issue of Gas Utility Manager magazine for an article on making mergers work. Reed graduated summa cum laude from the University of Southern California with a bachelor's degree in civil engineering.

Mr. Martin is a Trustee of Northwestern University and is involved with other Denver based charitable organizations. Mr. Martin holds a J.D. degree, cum laude, from Northwestern University School of Law and a B.S. in Business Administration from Northwestern University. He served two years in the U.S. Army. Mr. Martin was born in Grand Island, Nebraska, which is situated on the north bank of the Platte River. He and his wife, Sharon, have three children.

Derr retired as chairman of the board and chief executive officer of Chevron Corp. after a distinguished career of 40 years with the company. He was elected president of Chevron U.S.A. Inc. on Oct. 1, 1979. He was elected a director of the corporation in 1981 and was elected vice chairman in October 1985. He became chairman and chief executive officer on Jan. 1, 1989. Derr is a director of AT&T, Citigroup, Halliburton Company, Calpine Corporation and the American Productivity & Quality Center. He is a former chairman of the American Petroleum Institute and a Trustee Emeritus of Cornell University. He is a member of the Business Council, the Council on Foreign Relations and the Board of Overseers of the Hoover Institute and currently, co-chairman for the Committee to Encourage Corporate Philanthropy. He served as a member of President Bush's Commission on Environmental Quality, and also was a member of President Clinton's Council on Sustainable Development.

S. MALCOLM GILLIS, 65, University Professor, Rice University since 2004; President, Rice University, 1993-2004; Ervin Kenneth Zingler Professor of Economics, Rice University, 1996-2004; Professor of Economics, Rice University, 1993-2004; joined Halliburton Company Board in 2005; member of the Health, Safety and Environment, the Nominating and Corporate Governance and the Management Oversight Committees; Director of Service Corporation International, Introgen Therapeutics, Inc., AECOM Technology, Electronic Data Services Corporation and the Vietnam Education Foundation.