Exhibit 21 | |||||
Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2009 | |||||
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 12.77% ownership)+ | |||||
American Transmission Company LLC (approximately 34.07% ownership)+ | |||||
ATC Management Inc. (32.11% ownership of Class A Shares, 20% ownership of Class B Shares)+ | |||||
WPS Investments, LLC (approximately 84.51% ownership)+ | |||||
American Transmission Company LLC (approximately 34.07% 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.+ | |||||
Integrys Energy Services – Natural Gas, LLC++ | |||||
Integrys Energy Services – Electric, LLC++ | |||||
Quest Energy, LLC+++ | |||||
Integrys Energy Services of Canada Corp. (formed under Canadian law) | |||||
Integrys Energy Services of New York, Inc.++++++ | |||||
Integrys Energy Services of Texas, LP+++++ (99% ownership) | |||||
Integrys Energy Services of Texas, LP+++++ (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++ | |||||
Sunbury Holdings, LLC++ | |||||
WPS Westwood Generation, LLC++ | |||||
WPS Empire State, Inc.++++++ | |||||
WPS Beaver Falls Generation, LLC++ | |||||
WPS Syracuse Generation, LLC++ | |||||
Combined Locks Energy Center, LLC+ | |||||
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++ | |||||
Crimson Solar, LLC++ | |||||
Solar Star New Jersey, II, LLC++ | |||||
Solar Star TM2, LLC++ | |||||
LGS Renewables, I, LC+++++ (50% ownership) | |||||
Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2009 | |||||
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 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 2.72 ownership)+ | |||||
American Transmission Company LLC (approximately 34.07% ownership)+ | |||||
ATC Management Inc. (1.96% ownership)+ | |||||
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;PDI Stoneman, Inc.; 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. | ||||
+++++ | Formed under Texas law. | ||||
++++++ | Formed under New York law. |