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SUMMARY OF AFFILIATES
(Notice to New Affiliates)
 

NAME
BUSINESS ACTIVITY
- Carson Water Company (Carson Water)
Carson Water is not currently active.
- IntelliChoice Energy LLC (IntelliChoice) Majority-owned subsidiary of NPL. Formed to market and commericialize natural gas-fired heat pump technology. IntelliChoice does not provide service in California.
- LNG Energy, Inc. (LNGE) [See footnote 1] Marketing of liquefied natural gas. LNGE has disposed of all assets and is not currently active. LNGE has a wholly owned subsidiary Sundance Energy, which is also inactive.
- NPL Construction Co. (NPL) Full service pipeline distribution system contractor. NPL does not provide service in California.
- Pataya Storage Company (Pataya Storage)
Formed to own and operate natural gas storage in Arizona. Pataya Storage is not currently active.
- Paiute Pipeline Company (Paiute)
FERC jurisdictional interstate natural gas pipeline. Paiute's system extends from the Idaho-Nevada border to the Nevada-California border. Paiute does not provide service in California.
- The Southwest Companies (SC)
Holding company for temporary possession of certain real estate subsidiaries retained after the sale of former subsidiary PriMerit Bank. SC has a wholly owned subsidiary First Nevada Ltd. and its development subsidiaries.
- Southwest Administrators, Inc. (SA) [See footnote 1]
Wholly owned subsidiary of NPL. Formed to provide pipeline construction service in California.
- Southwest Gas Capital II, III, and IV (SWGC II, III, and IV)
Formed June 2003 solely to issue preferred securities. Only SWGC II is active at this time.
- Specialty Services, Inc. (Specialty) [See footnote 1]

Wholly owned subsidiary of NPL. Formed to provide perform welding on high-pressure natural gas pipelines.
- Total Energy Construction (Total)
Wholly owned subsidiary of NPL. Formed to provide construction of electric facilities in Arizona. Total is not currently active.
- Utility Financial Corp. (UFCO)
Minority limited partner in SWGT. UFCO does not perform any work in California.
- Unitary GH&C, LLC (Unitary)
Joint venture, Southwest has minority interest. Unitary was formed to research, develop, and market gas-fired heating and cooling products.Unitary does not provide service in California.

[1] Transactions between Southwest and these affiliates are subject to the California Affiliate Transaction Rules.