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                                    FORM 8-K

                                 CURRENT REPORT


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

        DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED) OCTOBER 17, 2003

 COMMISSION          REGISTRANT; STATE OF INCORPORATION;         IRS EMPLOYER
FILE NUMBER             ADDRESS; AND TELEPHONE NUMBER         IDENTIFICATION NO.
- -----------             -----------------------------         ------------------

   1-9513                  CMS ENERGY CORPORATION               38-2726431
                          (A MICHIGAN CORPORATION)
                              ONE ENERGY PLAZA
                           JACKSON, MICHIGAN 49201
                               (517) 788-0550




ITEM 5.  OTHER EVENTS

SALE OF SOUTHERN UNION COMPANY STOCK

On October 17, 2003, CMS Gas Transmission Company, an indirect subsidiary of CMS
Energy Corporation, ("CMS Gas Transmission"), sold 3.15 million shares of
Southern Union Company common stock (the "stock") to a private investor. CMS Gas
Transmission acquired 3 million shares of the stock through the sale of
Panhandle Eastern Pipe Line Company ("Panhandle") to Southern Union Panhandle
Corp. in June 2003, and an additional 150,000 shares through a subsequent
Southern Union Company stock dividend. The Panhandle sale agreement allowed CMS
Gas Transmission to sell the stock anytime after 90 days subsequent to closing.
CMS Gas Transmission sold the stock for $17.77 per share, totaling $55,975,500.
Proceeds from the sale will be used to reduce debt.

This Form 8-K contains "forward-looking statements" within the meaning of the
safe harbor provisions of the federal securities laws. The "forward-looking
statements" are subject to risks and uncertainties. They should be read in
conjunction with "CMS ENERGY FORWARD-LOOKING STATEMENTS, CAUTIONARY FACTORS AND
UNCERTAINTIES" found in Item 1 of CMS Energy's Form 10-K/A for the Fiscal Year
Ended December 31, 2002 filed with the Securities and Exchange Commission on
July 1, 2003 (incorporated herein by reference), that discusses important
factors that could cause CMS Energy's results to differ materially from those
anticipated in such statements.




                                   SIGNATURE


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 hereunto duly authorized.



                                      CMS ENERGY CORPORATION

Dated:  October 17, 2003

                                      By:      /s/ Thomas J. Webb
                                               --------------------------------
                                               Thomas J. Webb
                                               Executive Vice President and
                                               Chief Financial Officer