UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 8-K


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


       Date of Report (Date of earliest event reported): SEPTEMBER 1, 2004


                                TC PIPELINES, LP
             (Exact name of registrant as specified in its charter)


           DELAWARE                      000-26091               52-2135448
(State or other jurisdiction of         (Commission            (IRS Employer
         incorporation)                  File Number)        Identification No.)


         110 TURNPIKE ROAD, SUITE 203
          WESTBOROUGH, MASSACHUSETTS                                01581
  (Address of principal executive offices)                        (Zip Code)


       Registrant's telephone number, including area code: (508) 871-7046


                                 NOT APPLICABLE
         (Former name or former address, if changed since last report.)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
    Exchange Act (17 CFR 240.13e-4(c))




ITEM 8.01     OTHER EVENTS.

TC PipeLines, LP owns a 30% general partner interest in Northern Border Pipeline
Company ("Northern Border Pipeline"). The remaining 70% is owned by Northern
Border Partners, L.P. ("Northern Border Partners"), a publicly traded limited
partnership controlled by affiliates of Enron Corp. ("Enron"). Two of Northern
Border Partners' general partners, Northern Plains Natural Gas Company and Pan
Border Gas Company, are owned by CrossCountry Energy, LLC, a wholly-owned
subsidiary of Enron.

In June 2004, Enron Corp. ("Enron") announced that it had reached an agreement
with CCE Holdings, LLC ("CCE Holdings"), a joint venture of Southern Union
Company and GE Commercial Finance Energy Financial Services, for the sale of
CrossCountry Energy, LLC ("CrossCountry"). The bid of CCE Holdings was the
"stalking horse" for an auction of CrossCountry scheduled to be held on
September 1, 2004.

On September 1, 2004, Enron announced that it reached an agreement with
CCE Holdings for the sale of CrossCountry for $2.45 billion in cash,
including the assumption of debt. According to Enron, CCE Holdings has
obtained all material state regulatory approvals and federal antitrust
clearance.

In its September 1, 2004 press release, Enron notes that the sale remains
subject to approval of the Bankruptcy Court for the Southern District of
New York and that a hearing before the Bankruptcy Court is scheduled for
September 9, 2004. Subject to this approval and certain other conditions
precedent, Enron expects the sale to close by mid-December.




                                   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 hereunto duly authorized.


                                        TC PipeLines, LP
                                        By: TC PipeLines GP, Inc.,
                                        its general partner


Date: September 2, 2004                 By: /s/ Ronald J. Turner
                                           -------------------------------
                                           Ronald J. Turner
                                           President and Chief Executive Officer