SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* LINDEMANN GEORGE L (Last) (First) (Middle) 767 FIFTH AVENUE (Street) NEW YORK NY 10153 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol SOUTHERN UNION CO [ SUG ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner X Officer (give title below) Other (specify below) Chairman & CEO
	3. Date of Earliest Transaction (Month/Day/Year) 09/13/2005
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/13/2005		P(1)(2)		476,002(2)	A(2)	(3)	476,002(4)	I(1)(2)	Activated Communications Limited Partnership(1)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Activated Communications Limited Partnership is an entity owned by the Lindemann family.

2. On September 13, 2005, Adam M. Lindemann transferred 476,002 shares of Common Stock to Activated Communications Limited Partnership as part of a privately negotiated transaction in which he acquired all of Activated?s ownership interest in Mega Communications Holdings, L.L.C. As a result of the transaction, the Reporting Person's indirect ownership through his interest in Activated may be deemed to have increased by 476,002 shares. However, the Reporting Person disclaims beneficial ownership in such shares except to the extent of his pecuniary interest therein.

3. On September 13, 2005 the Issuer's common stock traded (closed) at $25.21 per share on the New York Stock Exchange.

4. The Reporting Person also holds indirectly 72,544 shares of common stock through the Issuer's Supplemental Deferred Compensation Plan and 23,758 shares of common stock through the Issuer's 401(K) Plan and directly holds 3,337,814 shares of common stock and may be deemed to hold 3,289,220 shares owned by his wife, however, the Reporting Person disclaims beneficial ownership in such shares except to the extent of his pecuniary interest therein.

Remarks:

	Robert M. Kerrigan, III for George L. Lindemann	09/15/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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