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RISK MANAGEMENT ACTIVITIES (Tables)
 3 Months Ended
Mar. 31, 2013
RISK MANAGEMENT ACTIVITIES  
Schedule of assets and liabilities from risk management activities
 
 
 
 
March 31, 2013
(Millions)
 
Balance Sheet Presentation *
 
Assets
 
Liabilities
Natural gas contracts
 
Other Current
 
$
0.9

 
$
—

FTRs
 
Other Current
 
0.7

 
0.1

Petroleum product contracts
 
Other Current
 
0.1

 
—

Coal contract
 
Other Current
 
0.1

 
2.8

Coal contract
 
Other Long-term
 
—

 
2.0

 
 
Other Current
 
1.8

 
2.9

 
 
Other Long-term
 
—

 
2.0

Total
 
 
 
$
1.8

 
$
4.9


*   We classify assets and liabilities from risk management activities as current or long-term based upon the maturities of the underlying contracts.

 
 

 
December 31, 2012
(Millions)
 
Balance Sheet Presentation *
 
Assets
 
Liabilities
Natural gas contracts
 
Other Current
 
$
0.1

 
$
0.6

FTRs
 
Other Current
 
1.2

 
0.1

Petroleum product contracts
 
Other Current
 
0.1

 
—

Coal contracts
 
Other Current
 
0.3

 
4.7

Coal contracts
 
Other Long-term
 
2.2

 
4.3

 
 
Other Current
 
1.7

 
5.4

 
 
Other Long-term
 
2.2

 
4.3

Total
 
 
 
$
3.9

 
$
9.7


*   We classify assets and liabilities from risk management activities as current or long-term based upon the maturities of the underlying contracts.
Schedule of potential effect of netting arrangements on financial position for recognized derivative assets and liabilities
 
 
March 31, 2013
(Millions)
 
Gross Amount
 
Gross Amount Not Offset in the Balance Sheet including Cash Collateral
 
Net Amount
Assets
 
 
 
 

 
 

Derivative assets subject to master netting or similar arrangements
 
$
1.7

 
$
0.1

 
$
1.6

Derivative assets not subject to master netting or similar arrangements
 
0.1

 
 
 
0.1

Total risk management assets
 
$
1.8

 


 
$
1.7

 
 
 
 
 
 
 
Liabilities
 
 
 
 

 
 

Derivative liabilities subject to master netting or similar arrangements
 
$
0.1

 
$
0.1

 
$
—

Derivative liabilities not subject to master netting or similar arrangements
 
4.8

 
 
 
4.8

Total risk management liabilities
 
$
4.9

 


 
$
4.8


 
 
December 31, 2012
(Millions)
 
Gross Amount
 
Gross Amount Not Offset in the Balance Sheet including Cash Collateral
 
Net Amount
Assets
 
 
 
 

 
 

Derivative assets subject to master netting or similar arrangements
 
$
1.4

 
$
0.2

 
$
1.2

Derivative assets not subject to master netting or similar arrangements
 
2.5

 
 
 
2.5

Total risk management assets
 
$
3.9

 


 
$
3.7

 
 
 
 
 
 
 
Liabilities
 
 
 
 

 
 

Derivative liabilities subject to master netting or similar arrangements
 
$
0.7

 
$
0.7

 
$
—

Derivative liabilities not subject to master netting or similar arrangements
 
9.0

 
 
 
9.0

Total risk management liabilities
 
$
9.7

 


 
$
9.0

Schedule of cash collateral positions
(Millions)
 
March 31, 2013
 
December 31, 2012
Cash collateral provided to others related to contracts under master netting or similar arrangements *
 
$
4.0

 
$
4.3


*   Reflected in other current assets on the balance sheets.
Schedule of unrealized gains (losses) recorded related to derivatives
 
 
 
 
Three Months Ended  March 31
(Millions)
 
Financial Statement Presentation
 
2013
 
2012
Natural gas contracts
 
Balance Sheet — Regulatory assets (current)
 
$
1.0

 
$
1.7

Natural gas contracts
 
Balance Sheet — Regulatory liabilities (current)
 
0.8

 
—

Natural gas contracts
 
Income Statement — Cost of fuel, natural gas, and purchased power
 
—

 
0.1

FTRs
 
Balance Sheet — Regulatory assets (current)
 
0.2

 
0.2

FTRs
 
Balance Sheet — Regulatory liabilities (current)
 
(0.4
)
 
(0.4
)
Petroleum product contracts
 
Balance Sheet — Regulatory assets (current)
 
—

 
0.1

Petroleum product contracts
 
Balance Sheet — Regulatory liabilities (current)
 
—

 
0.1

Coal contract
 
Balance Sheet — Regulatory assets (current)
 
1.9

 
(3.1
)
Coal contract
 
Balance Sheet — Regulatory assets (long-term)
 
2.3

 
(3.5
)
Coal contract
 
Balance Sheet — Regulatory liabilities (current)
 
(0.2
)
 
—

Coal contract
 
Balance Sheet — Regulatory liabilities (long-term)
 
(2.2
)
 
—

Schedule of notional volumes of outstanding derivative contracts
 
 
March 31, 2013
 
December 31, 2012
Commodity
 
Purchases
 
Sales
 
Other  Transactions
 
Purchases
 
Other Transactions
Natural gas (millions of therms)
 
21.1

 
—

 
N/A

 
86.1

 
N/A

FTRs (millions of kilowatt-hours)
 
N/A

 
N/A

 
1,496.0

 
N/A

 
3,838.2

Petroleum products (barrels)
 
28,249.0

 
N/A

 
N/A

 
33,002.0

 
N/A

Coal contract (millions of tons)
 
4.7

 
0.2

 
N/A

 
5.1

 
N/A