EXHIBIT 99.B

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

         In connection with the Quarterly Report on Form 10-Q for the period
ending June 30, 2002, of Tennessee Gas Pipeline Company (the "Company") as filed
with the Securities and Exchange Commission on the date hereof (the "Report"),
I, Greg G. Gruber, Chief Financial Officer, certify (i) that the Report fully
complies with the requirements of Section 13(a) or 15(d) of the Securities
Exchange Act of 1934, as amended, and (ii) that the information contained in the
Report fairly presents, in all material respects, the financial condition and
results of operations of the Company.



                                              /s/ Greg G. Gruber
                                              ----------------------------------
                                              Greg G. Gruber
                                              Chief Financial Officer

                                              August 13, 2002