8-K

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 22, 2007

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

Item 8.01 Other Events

On March 22, 2007, Southern Union Company announced that its Missouri Gas Energy natural gas distribution company received approval from the Missouri Public Service Commission for a base rate increase of approximately $27.2 million in additional annual revenues. The new rates will go into effect March 30, 2007.

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 March 22, 2007.  

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 23, 2007	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 March 22, 2007.      

EX-99.1

Exhibit 99.1

[Missing Graphic Reference]

07-08

For further information:

John P. Barnett, Director of External Affairs

713-989-7556

John F. Walsh, Director of Investor Relations

212-659-3208

SOUTHERN UNION COMPANY’S

MISSOURI GAS ENERGY RECEIVES APPROVAL FOR

$27.2 MILLION RATE INCREASE

HOUSTON, March 22, 2007— Southern Union Company (NYSE: SUG) today announced that its Missouri Gas Energy (MGE) natural gas distribution company received approval from the Missouri Public Service Commission for a base rate increase of approximately $27.2 million in additional annual revenues. The new rates will go into effect March 30.

“This decision by the Missouri Public Service Commission will improve MGE’s earnings which, in turn, will create additional value for our shareholders,” said Eric D. Herschmann, senior executive vice president of Southern Union.

The revenue increase will allow the company to earn a fair return on its investments and recover increased expenses associated with operating, maintaining and enhancing its 8,000 mile distribution system as well as the cost of substantial capital expenditures MGE has made for safety projects, public improvement relocations and new construction. The new rate structure approved by the commission produces an improved rate design that should stabilize MGE’s revenues and reduce the impact of weather-related fluctuations on bills for MGE’s customers.

“We applaud the foresight of the Missouri Public Service Commission in granting our rate adjustment request, which will benefit the customers in MGE’s service area through our ability to continue to maintain and enhance our system,” said George Lindemann, chairman, president and CEO of Southern Union.

Missouri Gas Energy, headquartered in Kansas City, Mo., is a natural gas operating division of Southern Union Company. Missouri Gas Energy serves approximately 510,000 residential, commercial and industrial end-user customers in 34 counties throughout the state of Missouri. Visit www.missourigasenergy.com.

About Southern Union Company

 Southern Union Company, headquartered in Houston, is one of the nation’s leading diversified natural gas companies, engaged primarily in the transportation, storage, gathering, processing and distribution of natural gas. The company owns and operates one of the nation’s largest natural gas pipeline systems with approximately 20,000 miles of gathering and transportation pipelines and North America’s largest liquefied natural gas import terminal.

 Through Panhandle Energy, Southern Union’s interstate pipeline interests operate approximately 15,000 miles of interstate pipelines that transport natural gas from the Anadarko and San Juan basins, the Rockies, the Gulf of Mexico, Mobile Bay and South Texas to major markets in the Southeast, Midwest and Great Lakes region.

 Southern Union Gas Services, with approximately 4,800 miles of pipelines, is engaged in the gathering, transmission, treating, processing and redelivery of natural gas and natural gas liquids in Texas and New Mexico.

 Through its local distribution companies, Missouri Gas Energy and New England Gas Company, Southern Union also serves more than half a million natural gas end-user customers in Missouri and Massachusetts.

 For further information, visit www.sug.com.

Forward-Looking Information

This news release 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.

# # #