XML 46 R33.htm IDEA: XBRL DOCUMENT v3.8.0.1
DERIVATIVE INSTRUMENTS (Tables)
 9 Months Ended
Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative assets and derivative liabilities
The following table shows our derivative assets and derivative liabilities:
 
 
September 30, 2017
 
December 31, 2016
(in millions)
 
Derivative Assets
 
Derivative Liabilities
 
Derivative Assets
 
Derivative Liabilities
Other current
 
 
 
 
 
 
 
 
Natural gas contracts
 
$
5.4

 
$
4.0

 
$
31.4

 
$
0.4

Petroleum products contracts
 
1.0

 
—

 
0.2

 
0.1

FTRs
 
7.3

 
—

 
5.1

 
—

Coal contracts
 
0.6

 
1.4

 
1.5

 
1.4

   Total other current *
 
$
14.3

 
$
5.4


$
38.2


$
1.9

 
 
 
 
 
 
 
 
 
Other long-term
 
 
 
 
 
 
 
 
Natural gas contracts
 
$
1.1

 
$
—

 
$
2.9

 
$
—

Coal contracts
 
0.3

 
0.7

 
0.5

 
0.5

   Total other long-term *
 
$
1.4

 
$
0.7


$
3.4


$
0.5

Total
 
$
15.7

 
$
6.1

 
$
41.6

 
$
2.4



*
On our balance sheets, we classify derivative assets and liabilities as other current or other long-term based on the maturities of the underlying contracts.
Estimated notional volumes and realized gain (losses)
Our estimated notional sales volumes and realized gains (losses) were as follows:
 
 
Three Months Ended September 30, 2017

Three Months Ended September 30, 2016
(in millions)
 
Volumes
 
Gains (Losses)
 
Volumes
 
Gains (Losses)
Natural gas contracts
 
24.9 Dth
 
$
(2.1
)
 
30.5 Dth
 
$
(3.4
)
Petroleum products contracts
 
4.4 gallons
 
(0.5
)
 
4.3 gallons
 
(0.4
)
FTRs
 
9.4 MWh
 
4.2

 
9.9 MWh
 
7.1

Total
 
 
 
$
1.6

 
 
 
$
3.3


 
 
Nine Months Ended September 30, 2017
 
Nine Months Ended September 30, 2016
(in millions)
 
Volumes
 
Gains (Losses)
 
Volumes
 
Gains (Losses)
Natural gas contracts
 
84.2 Dth
 
$
(1.1
)
 
113.3 Dth
 
$
(56.9
)
Petroleum products contracts
 
14.2 gallons
 
(1.4
)
 
10.9 gallons
 
(2.5
)
FTRs
 
28.0 MWh
 
9.4

 
24.9 MWh
 
11.7

Total
 
 
 
$
6.9

 
 
 
$
(47.7
)
Offsetting assets and liabilities
The following table shows derivative assets and derivative liabilities if derivative instruments by counterparty were presented net on our balance sheets:
 
 
September 30, 2017
 
December 31, 2016
(in millions)
 
Derivative Assets
 
Derivative Liabilities
 
Derivative Assets
 
Derivative Liabilities
Gross amount recognized on the balance sheet
 
$
15.7

 
$
6.1

 
$
41.6

 
$
2.4

Gross amount not offset on the balance sheet
 
(3.0
)
 
(3.1
)
(1) 
(4.9
)
(2) 
(0.5
)
Net amount
 
$
12.7

 
$
3.0

 
$
36.7

 
$
1.9


(1)  
Includes cash collateral posted of $0.1 million.

(2) 
Includes cash collateral received of $4.4 million.