105 AGL Energy Limited Annual Report 2012 Ownership interest and voting power held Name of subsidiary Note Country of incorporation 2012 % 2011 % AGL HP2 Pty Limited (a) Australia 100  100  AGL Hydro Partnership Australia 20.0  20.0  AGL HP3 Pty Limited (a) Australia 100  100  AGL Hydro Partnership Australia 30.5  30.5  AGL Power Generation Pty Limited (a) Australia 100  100  AGL Power Generation (Wind) Pty Limited (a) Australia 100  100  Australia Plains Wind Farm Pty Ltd (a) Australia 100  100  Barn Hill Wind Farm Pty Ltd (a) Australia 100  100  Ben Lomond Wind Farm Pty Ltd (a) Australia 100  100  Box Hill Wind Farm Pty Limited (a) Australia 100  100  Crows Nest Wind Farm Pty Ltd (a) Australia 100  100  Highfields Wind Farm Pty Limited (a) Australia 100  100  Worlds End Wind Farm Pty Ltd (a) Australia 100  100  AGL PV Solar Holdings Pty Limited (c) Australia 100  –  AGL PV Solar Developments Pty Limited (c) Australia 100  –  AGL Retail Energy Limited (a) Australia 100  100  AGL Share Plan Pty Limited  Australia 100  100  AGL (SG) (Camden) Operations Pty Limited (a) Australia 100  100  AGL (SG) (Hunter) Operations Pty Limited (a) Australia 100  100  AGL (SG) Operations Pty Limited (a) Australia 100  100  AGL Upstream Gas (Mos) Pty Limited  (a) Australia 100  100  AGL Cooper Basin Pty Ltd (a) Australia 100  100  AGL Gas Storage Pty Ltd (a) Australia 100  100  Mosaic Oil NZ Limited New Zealand 100  100  AGL Upstream Infrastructure Investments Pty Limited  (a) Australia 100  100  AGL Upstream Investments Pty Limited  (a) Australia 100  100  AGL Wholesale Gas Limited  (a) Australia 100  100  AGL Wholesale Gas (SA) Pty Limited  (a) Australia 100  100  Coopers Gap Wind Farm Pty Ltd (a) Australia 100  100  Dual Fuel Systems Pty Limited  (a) Australia 100  100  Geogen Victoria Pty Ltd (a) Australia 100  100  Hallett 5 Pty Ltd (c)(d) Australia –  –  H C Extractions Pty Limited  (a) Australia 100  100  Macarthur Wind Farm Pty Ltd (a) Australia 100  100  Powerdirect Pty Ltd (a) Australia 100  100  Silverton Wind Farm Holdings Pty Limited (a)(b) Australia 100  –  Silverton Wind Farm Developments Pty Limited (a)(b) Australia 100  –  Silverton Wind Farm Transmission Pty Limited (a)(b) Australia 100  –  The Australian Gas Light Company (a) Australia 100  100 Names inset indicate that shares are held by the company immediately above the inset. (a) These wholly-owned subsidiaries are parties to a Deed of Cross Guarantee as detailed in Note 46.  (b) Acquired during the financial year. (c) Incorporated during the financial year. (d) Disposed during the financial year. (e) AGL Energy Limited holds 32.54% of the shareholding in Great Energy Alliance Corporation Pty Limited.