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): April 5, 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))

ITEM 7.01 Regulation FD Disclosure

On April 5, 2006, Panhandle Eastern Pipe Line Company LP, a wholly owned subsidiary of Southern Union Company, announced enhancement plans for its Trunkline LNG Company, LLC (“Trunkline”) liquefied natural gas import terminal, the placement in service of the terminal’s Phase I expansion and an extension of existing customer contracts. This infrastructure enhancement project, which is expected to cost approximately $250 million, will increase sendout flexibility and realize other operational efficiencies at Trunkline’s Lake Charles, La., terminal. The project is fully contracted to BG LNG Services under long-term agreements. In addition, Trunkline and BG LNG Services have agreed to extend existing terminal and pipeline services agreements through 2028, representing a five year extension. A copy of the press release is attached hereto as Exhibit 99.1.

ITEM 9.01. Financial Statements and Exhibits.

(c) Exhibits.

            Exhibit No.Exhibit

99.1 Press Release issued by Southern Union Company dated April 5, 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: April 5, 2006	By:	/s/ Robert M. Kerrigan, III
		Robert M. Kerrigan, III
		Vice President - Assistant General Counsel and Secretary

EXHIBIT INDEX

  Exhibit No.Description

99.1 Press Release issued by Southern Union Company dated April 5, 2006.