<DOCUMENT>
<TYPE>EX-99.16
<SEQUENCE>4
<FILENAME>c27529_ex99-16.txt
<TEXT>
                                                                   Exhibit 99.16




                                  CERTIFICATION

     Pursuant to Section 906 of the  Sarbanes-Oxley Act of 2002 I hereby certify
that:

     I have reviewed the Annual Report on Form 10-K;

     to the best of my  knowledge,  this  Annual  Report  on Form 10-K (i) fully
complies  with the  requirements  of section 13 (a) or 15 (d) of the  Securities
Exchange  Act of 1934 (15  U.S.C.  78m(a) or  78o(d);  and (ii) the  information
contained  in  this  Report  fairly  presents,  in all  material  respects,  the
financial  condition  and  results  of  operation  of  Tengasco,  Inc.  and  its
subsidiaries during the period covered by this Report.

Dated: March 31, 2003


                                                     /s/ RICHARD T. WILLIAMS
                                                         ---------------------
                                                         Richard T. Williams,
                                                         Chief Executive Officer



<PAGE>


                                  CERTIFICATION

     Pursuant to Section 906 of the  Sarbanes-Oxley Act of 2002 I hereby certify
that:

     I have reviewed the Annual Report on Form 10-K;

     to the best of my  knowledge,  this  Annual  Report  on Form 10-K (i) fully
complies  with the  requirements  of section 13 (a) or 15 (d) of the  Securities
Exchange  Act of 1934 (15  U.S.C.  78m(a) or  78o(d);  and (ii) the  information
contained  in  this  Report  fairly  presents,  in all  material  respects,  the
financial  condition  and  results  of  operation  of  Tengasco,  Inc.  and  its
subsidiaries during the period covered by this Report.

Dated: March 31, 2003


                                     /s/MARK A. RUTH
                                     -------------------
                                     Mark A. Ruth,
                                     Principal Financial and Accounting Officer


</TEXT>
</DOCUMENT>
