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v2.3.0.11

Operations and Significant Accounting Policies (Details) (USD $) In Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010 | Dec. 31, 2010
Inventories |  |  |  |  |
Fuel | $ 23.5 |  | $ 23.5 |  | $ 22.9
Materials and Supplies | 37.8 |  | 37.8 |  | 37.1
Total Inventories | 61.3 |  | 61.3 |  | 60.0
Prepayments and Other Current Assets |  |  |  |  |
Deferred Fuel Adjustment Clause | 15.0 |  | 15.0 |  | 20.6
Other | 5.6 |  | 5.6 |  | 8.0
Total Prepayments and Other Current Assets | 20.6 |  | 20.6 |  | 28.6
Other Non-Current Liabilities |  |  |  |  |
Asset Retirement Obligation | 52.0 |  | 52.0 |  | 50.3
Other | 48.9 |  | 48.9 |  | 43.1
Total Other Non-Current Liabilities | 100.9 |  | 100.9 |  | 93.4
Cash Paid During the Period for |  |  |  |  |
Interest - Net of Amounts Capitalized |  |  | 21.9 | 16.3 |
Income Taxes |  |  | 0.4 | 1.5 |
Noncash Investing and Financing Activities |  |  |  |  |
Increase (Decrease) in Accounts Payable for Capital Additions to Property, Plant and Equipment | (13.2) | 4.4 | (13.2) | 4.4 |
AFUDC - Equity | $ 0.5 | $ 0.9 | $ 1.1 | $ 2.1 |

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