Exhibit 21 | |||||
Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2008 | |||||
INTEGRYS ENERGY GROUP, INC.+ * | |||||
Wisconsin Public Service Corporation+ | |||||
WPS Leasing, Inc.+ | |||||
Wisconsin Valley Improvement Company (27.1% ownership) + | |||||
Wisconsin River Power Company (50% ownership)+ | |||||
WPS Investments, LLC (approximately 14.11% ownership)+ | |||||
American Transmission Company LLC (approximately 34.06% ownership)+ | |||||
ATC Management Inc. (32.11% ownership)+ | |||||
WPS Investments, LLC (approximately 82.89% ownership)+ | |||||
American Transmission Company LLC (approximately 34.06% ownership)+ | |||||
Michigan Gas Utilities Corporation++ | |||||
Minnesota Energy Resources Corporation++ | |||||
Integrys Business Support, LLC++ | |||||
WPS Visions, Inc.+ | |||||
Badger Energy Services, LLC (12.50% ownership)+ | |||||
Integrys Energy Services, Inc.+ | |||||
Quest Energy, LLC+++ | |||||
Integrys Energy Services of Canada Corp. (formed under Canadian law) | |||||
Integrys Energy Services of New York, Inc. (formed under New York law) | |||||
Integrys Energy Services of Texas, LP (formed under Texas law) (99% ownership) | |||||
Integrys Energy Services of Texas, LP (formed under Texas law) (1% ownership) | |||||
PERC Holdings, LLC++ | |||||
WPS Power Development, LLC+ | |||||
PDI Stoneman, Inc.+ | |||||
Winnebago Energy Center, LLC++ | |||||
WPS Canada Generation, Inc.+ | |||||
WPS New England Generation, Inc.+ | |||||
Wisconsin Woodgas LLC+ | |||||
Wisconsin Energy Operations LLC (49% ownership)+ | |||||
ECO Coal Pelletization #12 LLC (70% ownership)++ | |||||
Synfuel Solutions, LLC (33.33% ownership)++ | |||||
Synfuel Solutions Operating, LLC++ | |||||
Sunbury Holdings, LLC++ | |||||
WPS Westwood Generation, LLC++ | |||||
WPS Empire State, Inc. (formed under New York law) | |||||
WPS Beaver Falls Generation, LLC++ | |||||
WPS Syracuse Generation, LLC++ | |||||
Combined Locks Energy Center, LLC+ | |||||
PV Midstream Ventures, LLC (50% ownership)++ | |||||
Peoples Natural Gas Liquids, LLC++ | |||||
Solar Hold 2008-1, LLC++ | |||||
Soltage-MAZ 700 Tinton Falls, LLC++ (99% ownership) | |||||
Soltage-ADC 630 Jamesburg, LLC++ (99% ownership) | |||||
Soltage-PLG 500 Millford, LLC++ (99% ownership) | |||||
Solar Hold 2008-2, LLC++ | |||||
Solar Man, LLC++ | |||||
Sun Devil Solar LLC++ | |||||
Solar Star California II, LLC++ | |||||
Solar Star New Jersey, I, LLC++ | |||||
LGS Renewables, I, LC (formed under Texas law) (50% ownership) |
Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2008 | ||||||
INTEGRYS ENERGY GROUP, INC.+* | ||||||
Peoples Energy Corporation++++ | ||||||
The Peoples Gas Light and Coke Company++++ | ||||||
Peoples Gas Neighborhood Development Corporation++++ | ||||||
North Shore Gas Company++++ | ||||||
Peoples Energy Resources Company, LLC++ | ||||||
Peoples MW, LLC++ | ||||||
Peoples District Energy Corporation++++ | ||||||
Peoples Energy Ventures, LLC++ | ||||||
Peoples Energy Home Services, LLC++ | ||||||
Peoples Energy Neighborhood Development, LLC++ | ||||||
Peoples Technology, LLC++ | ||||||
Upper Peninsula Power Company+++ | ||||||
WPS Investments, LLC (approximately 3.0% ownership)+ | ||||||
American Transmission Company LLC (approximately 34.06% ownership)+ | ||||||
ATC Management Inc. (1.96% ownership)+ | ||||||
Upper Peninsula Building Development Company+++ | ||||||
Penvest, Inc.+++ | ||||||
* | Integrys Energy Group, Inc. is the parent holding company. All affiliated companies listed are 100% owned except as noted otherwise. All affiliates are currently active, with the exception of Wisconsin Woodgas, LLC; Wisconsin Energy Operations LLC; ECO Coal Pelletization #12, LLC; Synfuel Solutions, LLC; Synfuel Solutions Operating, LLC; PDI Stoneman, Inc.; PV Midstream Ventures, LLC; Peoples MW, LLC; Peoples Energy Ventures, LLC; and Peoples District Energy Corporation. | |||||
+ | Formed under Wisconsin law. | |||||
++ | Formed under Delaware law. | |||||
+++ | Formed under Michigan law. | |||||
++++ | Formed under Illinois law. | |||||