JOINT FILING AGREEMENT In accordance with Rule 13d-1(f) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other of the attached statement on Schedule 13D and to all amendments to such...

                      JOINT FILING AGREEMENT

         In accordance with Rule 13d-1(f) under the Securities
Exchange Act of 1934, as amended, the undersigned hereby agree to
the joint filing with each other of the attached statement on
Schedule 13D and to all amendments to such statement and that such
statement and all amendments to such statement is made on behalf of
each of them.

         IN WITNESS WHEREOF, the undersigned hereby execute this
agreement on March 7, 1997.

                          
                              XXXXXX X. XXXXXXXXX
                              Xxxxxx X. XxXxxxxxx, an individual

                              CHESAPEAKE INVESTMENTS, AN OKLAHOMA 
                              LIMITED PARTNERSHIP, an Oklahoma    
                              limited parntership

                              XXXXXX X. XXXXXXXXX
                              Xxxxxx X. XxXxxxxxx, General Partner

                              XXX X. XXXX
                              Xxx X. Xxxx, an individual

                              TLW INVESTMENTS, Inc., an Oklahoma  
                              corporation

                              XXX X. XXXX
                              Xxx X. Xxxx, Chief Executive Officer