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SUMMARY OF AFFILIATES
(Notice to New Affiliates)
 

NAME
BUSINESS ACTIVITY
- Black Mountain Gas Company
Black Mountain Gas Company does not currently conduct business. [See footnote 1]
- Carson Water Company (Carson Water)
Carson Water does not currently conduct business.
- First Nevada, Ltd. and Nevada Laurel Corporation Wholly-owned subsidiary of SC. First Nevada and its wholly-owned subsidiary Nevada Laurel Corporation do not currently conduct business.
- IntelliChoice Energy LLC (IntelliChoice) Joint venture. Majority-owned subsidiary of NPL. Formed to market and commericialize natural gas-fired heat pump technology. [See footnote 1]
- IntelliChoice Energy of California LLC
(CAL ICE)
Wholly-owned subsidiary of IntelliChoice, formed to market/commercialize natural gas-fired pump heat technology in California. [See footnote 1]
- LNG Energy, Inc. (LNGE) LNGE does not currently conduct business. [See footnote 1]
- NPL Construction Co. (NPL) Full service pipeline distribution system contractor.
- Pataya Storage Company (Pataya Storage)
Pataya Storage does not currently conduct business.
- Paiute Pipeline Company (Paiute)
FERC jurisdictional interstate natural gas pipeline. Paiute's system extends from the Idaho-Nevada border to the Nevada-California border.
- The Southwest Companies (SC)
Holding company for temporary possession of certain real estate subsidiaries.
- Southwest Administrators, Inc. (SA) Wholly owned subsidiary of NPL. Formed to provide pipeline construction service in California. [See footnote 1]

- Southwest Gas Capital II, III, and IV (SWGC II, III, and IV)
Formed solely to issue preferred securities. Only SWGC II currently conducts business.
- Southwest Gas Transmission Company (SWGTC) FERC jurisdictional interstae natural gas pipeline. SWGTC's system extends from northern Arizona to southern Nevada.
- Specialty Services, Inc. (Specialty)
Wholly owned subsidiary of NPL. Specialty does not currently conduct business. [See footnote 1]
- Sundance Energy, Inc (Sundance) Wholly-owned subsidiary of LNG Energy, Inc. Sundance does not currently conduct business. [See footnote 1]
- Sunridge Heights, LLC (Sunridge) A Delaware LLC formed for the limited purpose of acquiring replacement property in southeast Las Vegas.
- Total Energy Construction (Total)
Wholly owned subsidiary of NPL. Total does not currently conduct business.
- Utility Financial Corp. (UFCO)
Minority limited partner in SWGTC.
- 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.

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