Common use of Timoxxx X. Xxxx Clause in Contracts

Timoxxx X. Xxxx. Xx. Xxxx, x graduate of Massachusetts Institute of Technology with a Bachelor of Science degree in Mechanical Engineering and the University of Chicago with an M.B.A., became Executive Vice President -- Business Development of Pioneer in August 1997. Mr. Xxxx xxxned Parkxx & Xarsxxx Xxxroleum Company in May 1994 as Vice President -- International and was promoted to Senior Vice President -- Business Development in October 1996, in which position he served until August 1997. Before joining Parkxx & Xarsley Petroleum Company, Mr. Xxxx xxx employed with Diamond Shamrock Corp., and its successor, Maxus Energy Corp., in various capacities in international exploration and production, marketing, refining, and planning and development.