Clayton Woodrum

Chatsworth Data Solutions, Inc. engages in the provision of optical mark readers. The company was founded in December 2003 and is headquartered in Tulsa, OK.

Arena Resources, Inc. (NYSE: ARD) is an Oklahoma-based oil and gas exploration, development and production company with current operations in Texas, Oklahoma, Kansas and New Mexico. Founded in 2000, the experienced management team has aggressively sought to acquire select properties in their 'back yard' which provides immediate positive cash flow and development opportunities for future years. Arena's management understands what is required to build a resource company from the ground up, having successfully done so on more than one occasion. With over 100 years of combined experience in the oil and gas industry, coupled with new technological advancements, careful geological evaluation and reservoir engineering, Arena has the components in place to build a profitable and successful program.

BOKF, NA, do-business-as BOK Financial, is an asset management firm headquartered in Tulsa, Oklahoma. The firm is a subsidiary of BOK Financial Corp. (NASDAQ: BOKF). BOKF offers trust and investment management services through their banks and subsidiary.