Derrick & Briggs, LLP

Attorneys and Counselors at Law

Our mailing address is:

Derrick & Briggs, LLP

Chase Tower, 28^th Floor

100 N. Broadway Ave.

Oklahoma City, Oklahoma 73102-8819

Our telephone number is:                                         405-235-1900

Our fax number is:                                                     405-235-1995

Our e-mail addresses are:               For Gary W. Derrick             derrick@DerrickandBriggs.com

                                                            For M. Courtney Briggs        briggs@DerrickandBriggs.com