Content

Selected Operating Highlights

Year ended December 31,

2007

2006

2005

Average Daily Throughput Volume




Alliance Canada (millions of cubic feet per day)

1,598.0

1,592.0

1,597.0

Saskatchewan System1 (thousands of barrels per day)




Westspur System

157.2

155.2

148.7

Saskatchewan Gathering System

109.6

103.8

103.2

Weyburn System

35.0

37.3

35.0

Virden System

24.2

20.7

21.5

Green Power2 (thousands of megawatt hours produced)

285.0

52.2

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  1. Totals are not presented as the same volumes can be transported through a combination of the pipelines comprising the Saskatchewan System.
  2. Wind assets were acquired on October 1, 2006. NRGreen's Kerrobert waste heat recovery facility began operations on December 29, 2006.

Alliance Canada transportation deliveries for the year, including Authorized Overrun Service (AOS) averaged 1,598 million cubic feet per day (mmcf/d) (20.6% in excess of firm capacity of 1,325 mmcf/d) compared with 1,592 mmcf/d (20.2% in excess of firm capacity) in 2006. This increase is reflective of Alliance Canada's continued focus on improving efficiencies on its system. An increase in AOS does not impact earnings, however, it does increase the competitiveness of Alliance Canada's tolls.

Throughputs for the Saskatchewan System have increased compared with the prior year due to increased volumes trucked to the pipelines as well as additional volumes from new customer connections. Higher throughputs do not directly impact earnings on the Saskatchewan Gathering and Westspur Systems since they are cost of service based. However, they may impact earnings for the Weyburn and Virden Systems.

Megawatt hours produced by Green Power were reflective of a full year of operations from the Wind Power projects and NRGreen.

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