8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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) August 18, 2010

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 (see General Instruction A.2. below):

࿠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 August 18, 2010, members of Southern Union Company (the “Company”) management will participate in investor meetings at the Tuohy Brothers Natural Gas Infrastructure and Production Conference in New York. The presentation materials, which are attached hereto as Exhibit 99.1, have been made available on the Company’s website at www.sug.com.  The presentation materials will focus on an overview of the Company and its organic growth projects and growth opportunities.  

The presentation materials attached hereto under Item 7.01 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall the presentation materials 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.

ITEM 9.01 Financial Statements and Exhibits.

(d) Exhibits.

        Exhibit No.                   Exhibit

99.1  August 18, 2010 Tuohy Brothers Natural Gas Infrastructure and Production Conference Investor Presentation

This 8-K includes forward-looking statements and projections.  The Company has made every reasonable effort to ensure that the information and assumptions on which these statements and projections are based are current, reasonable, and complete. However, a variety of factors could cause actual results to differ materially from the projections, anticipated results or other expectations expressed in this release.  Important factors that could cause actual results to differ materially from the projections, anticipated results or other expectations herein are enumerated in the Company’s Securities and Exchange Commission filings.  While the Company makes these statements and projections in good faith, neither the Company nor its management can guarantee that anticipated future results will be achieved. Refere nce must be made to those filings for additional important factors that may affect actual results. 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: August 18, 2010	By:	/s/ Robert M. Kerrigan, III
		Robert M. Kerrigan, III
		Vice President - Assistant General Counsel and Secretary

EXHIBIT INDEX

              Exhibit No.                                     Description

              99.1 August 18, 2010 Tuohy Brothers Natural Gas Infrastructure and Production Conference Investor Presentation

EX-99.1

•   Tuohy Brothers

•   Natural Gas Infrastructure & Production

•   Investor Meetings

•   August 18, 2010

•   Forward-Looking Statements

•   Company Overview

•   Focus on natural gas infrastructure

–   Attractive industry outlook

–   Natural gas is key to America’s energy future

–   High-quality assets with diverse supply and strong markets

•   Principally regulated asset base

–   Provides earnings and cash flow stability through long-term contracts

–   Business model proven to weather economic cycles

•   Organic growth projects provide low-risk growth trajectory

•   Map of Operations

•   Company Facts

•   Transportation & Storage

•   Vast pipeline network with access to diverse supply sources and growing markets

•   Approximately 15,000 miles of interstate pipelines with transportation capacity of 7.8 Bcf/d

•   One of North America’s largest liquefied natural gas (LNG) import terminals with peak send out of 2.1 Bcf/d and storage of 9 Bcf

•   Owns/leases approximately 100 Bcf of storage

•   Transportation & Storage Assets

•   Trunkline LNG:

Infrastructure Enhancement Project

•   FGT Phase VIII Expansion

•   FGT Phase VIII Expansion Timeline

•   FGT Pascagoula Lateral

•   Gathering & Processing

•   Located in prolific, long-lived Permian Basin

•   Approximately 5,500 miles of gas and gas liquids pipelines covering 16 counties in West Texas/Southeast New Mexico

•   Two (North and South) fully-integrated midstream system interconnected via high-pressure transfer system

•   Four active cryogenic plants and six active treating plants

–   Restarted Mi Vida treating facility in February 2010

–   Expect to restart Halley processing plant in 4Q2010

•   Attractive downstream markets

•   Attractive contract mix:  60% POP; 40% Fee + Conditioning

•   Map of Operations

•   North System

•   Consists of the Jal and Keystone Systems

–   Low pressure integrated sour gas gathering systems

–   Average processed volumes over 200 MMcfd

–   22,000+ barrels per day (bpd) NGL production

–   225 MMcfd cryogenic processing capacity

–   325 MMcfd sour gas treating capacity

–   40 tons per day sulfur plant capacity

•   South System

•   Consists of the Mi Vida, Coyanosa and Tippett Systems

–   High pressure integrated sweet and sour gas gathering systems

–   Average wellhead volumes 270 MMcfd

–   Average processed volumes 170 MMcfd

–   11,000+ bpd  NGL production

–   190 MMcfd cryogenic processing capacity

–   250 MMcfd sour gas treating capacity

•   High Pressure Transfer System

•   2010/2011 Growth Opportunities

•   Bone Springs Growth Opportunities

•   Driven by Bone Springs shale development

•   Restarted Mi Vida treater during February 2010

–   Added 110MMcf/d of treating capacity

•   Halley processing plant restart

–   Phase I

•   Adds 60MMcf/d of cryo processing capacity late 4Q10

–   Phase II (if commercially necessary)

•   Adds 50MMcf/d of additional cryo processing capacity

•   6 month lead time

–   Expect capacity to be sold under percentage of proceeds contracts

•   Gathering & Processing Assumptions

•   Positive processing spread environment encourages optimal Natural Gas Liquid recoveries; Normalized fuel, flare and unaccounted-for volumes

•   2010 projected equity volumes

–   Natural Gas Liquids equivalent of 35,000 to 40,000 MMBtu/d

–   Natural Gas of 15,000 to 20,000 MMBtu/d

•   2010 hedge positions

–   40,000 MMBtu/d of NGL equivalent at $10.44

–   5,000 MMBtu/d of natural gas $5.33

•   2011 hedge positions

–   25,000 MMBtu/d of NGL equivalent at $11.63

•   Distribution

•   Missouri Gas Energy

–   Provides natural gas to over 500,000 customers

–   Nearly 13,000 miles of main and service lines

–   Received a $16.2MM annual base rate increase effective February 28, 2010

•   New rate design eliminates impact of weather or conservation on margin for residential and small general service customer classes

•   New England Gas Company

–   Provides natural gas to 50,000 customers

–   Nearly 2,000 miles of main and service lines

–   Received $3.7MM in increased annual base rates in February 2009

•   Corporate & Other

•   Corporate segment provides administrative and support functions to business segments and allocates expenses as appropriate

•   Other segment primarily consists of PEI Power Corporation which owns interests in and operates 75 MW of generating assets in the PJM ISO and Fall River Gas Appliance

•   Summary

•   Focus on natural gas related infrastructure

•   Organic growth projects with clear visibility towards earnings and cash flow growth

•   Actively managed hedging program helps mitigate volatility in NGL margins

•   Balance preservation of investment grade credit ratings and return of capital to shareholders