Mr. A. J. Ferguson

One director who currently serves as a Class I director, A.J. Ferguson, has been nominated for election as a Class III director.Mr. Ferguson is approaching the Board's mandatory retirement age for directors, which is age 72.By serving as a Class III director rather than as a Class I director, Mr. Ferguson's term will coincide more closely with his upcoming retirement while maintaining the size of the Board's classes as nearly equal as possible, as required under the Company's Restated Articles of Association.
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A. J. Ferguson
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Mr. Ferguson is a self-employed certified petroleum geologist.He also is a director and Treasurer of Energy Drilling Co., an oil well drilling company, and the Secretary of Highland Corp., a land-lease company.
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Our Board has determined that each of A. J. Ferguson, Bethany L. Overton, Robert R. Punches, W. W. Allen, Jr., Craig A. Bradford, D.M.D., George R. Kurz, R. Andrew Patty II and Vinod K. Thukral, Ph.D. is an "independent director" as defined under Rule 4200(a)(15) of the Nasdaq Marketplace Rules.