<PAGE>
 

                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                          ZAPATA CORPORATION



February 13, 1995                  By:  /s/ Joseph L. von Rosenberg III
                                      ------------------------------------
                                            Joseph L. von Rosenberg III
                                          Vice President, General Counsel
                                              and Corporate Secretary



February 13, 1995                  By:         /s/ Lamar C. McIntyre
                                      ------------------------------------- 
                                                   Lamar C. McIntyre
                                       Vice President, Chief Financial Officer,
                                           Treasurer and Assistant Secretary

                                       14