**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): March 14, 2006
 
 
 **SOUTHERN
        UNION COMPANY**
 (Exact
        name of registrant as specified in its charter)
 
 
 
 Delaware
              1-6407
              75-0571592(State
                  or other jurisdiction of incorporation)
              (Commission
                  File Number)
              (I.R.S.
                  Employer
                Identification
                  No.)
 
 
 
 5444
                  Westheimer Road
                Houston,
                  Texas
                (Address
                  of principal executive offices)
              77056-5306
                (Zip
                  Code)
 
 
 Registrant's
        telephone number, including area code: (713) 989-2000
 
 
 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))
 
 
 
 
 Southern
        Union Company ( *Southern
        Union* or the *Company* )
        issued
        a press release on March 14, 2006, reporting its fiscal year 2005 results.
        The
        Company is furnishing the press release attached as Exhibit 99.1, pursuant
        to
        Item 2.02 and Item 7.01 of Form 8-K. The Company is also furnishing pursuant
        to
        Item 7.01 earnings guidance regarding expected financial performance for
        the
        fiscal year ending December 31, 2006. The information presented herein under
        Item 7.01 shall not be deemed “filed” for purposes of Section 18 of the
        Securities Act of 1934, as amended, nor shall it be deemed incorporated by
        reference in any filing under the Securities Act of 1933, as amended, except
        as
        expressly set forth by specific reference in such a filing.
  In
        the
        attached earnings release, Southern Union uses earnings before interest and
        taxes ( *EBIT* ),
        a
        non-GAAP financial measure, as the primary performance measure to evaluate
        segment performance. As defined in Regulation G, "Conditions for Use of
        Non-GAAP Financial Measures," a non-GAAP financial measure is a numerical
        measure of a company's historical or future performance, financial position
        or
        cash flow that excludes (includes) amounts, or is subject to adjustments
        that
        have the effect of excluding (including) amounts, that are included (excluded)
        in the most directly comparable measure calculated and presented in accordance
        with generally accepted accounting principles ( *GAAP* ).
  Since
        the
        Company’s November 2004 investment in CCE Holdings, the operating results of CCE
        Holdings have been included in Southern Union’s earnings from unconsolidated
        investments. Southern Union evaluates segment performance based on several
        factors, of which EBIT is the primary financial measure. EBIT allows management
        and investors to more effectively evaluate the performance of all of the
        Company’s consolidated subsidiaries and unconsolidated investments. Evaluating
        segment performance based on EBIT is a change from utilizing operating income
        in
        prior periods. The Company defines EBIT as net earnings (loss) available
        for
        common shareholders, adjusted for: (i) items that do not impact earnings
        (loss)
        from continuing operations, such as extraordinary items, discontinued operations
        and the impact of accounting changes; (ii) income taxes; (iii) interest;
        and
        (iv) dividends on preferred stock. EBIT may not be comparable to measures
        used
        by other companies. Additionally, EBIT should be considered in conjunction
        with
        net earnings and other performance measures such as operating income or
        operating cash flow.
  **Item
        9.01. Financial Statements and Exhibits.**
 
 **(c)
        Exhibits.**
 
 **** **** **** **** **Exhibit
        No** **.**   **Exhibit**
  99.1
              Press
                  Release issued by Southern Union Company dated March 14, 2006.
 
 ****
 This
        8-K
        includes forward-looking statements. Although Southern Union believes that
        its
        expectations are based on reasonable assumptions, it can give no assurance
        that
        such assumptions will materialize. Important factors that could cause actual
        results to differ materially from those in the forward-looking statements
        herein
        are enumerated in Southern Union's Forms 10-K and 10-Q as filed with the
        Securities and Exchange Commission. The Company assumes no obligation to
        publicly update or revise any forward-looking statements made herein or any
        other forward-looking statements made by the Company, whether as a result
        of new
        information, future events, or otherwise.
 
  
 **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.
 
 **SOUTHERN
                  UNION COMPANY**(Registrant)Date:
                  March 15, 2006
              By:
              /s/
                  Robert M. Kerrigan, IIIRobert
                  M. Kerrigan, IIIVice
                  President - Assistant General Counsel and
                  Secretary
 
 
 
  **EXHIBIT
        INDEX**
 
 **Exhibit
        No.**  **Description**
  99.1
              Press
                  Release issued by Southern Union Company dated March 14,
                  2006.