11. Natural gas sales and purchases
2019 2018 For the Three Months Ended September 30,
Asset
Asset
(millions)
Commodity Optimization Total
Commodity Optimization Total
Natural gas sales Natural gas sales to commodity customers
$
10
$
-
$
10
$
26
$
-
$
26
Realized on natural gas derivative instruments
-
31
31
-
61
61
Change in fair value of natural gas derivative instruments
-
(2)
(2)
-
(3)
(3)
10
29
39
26
58
84
Natural gas purchases Realized on natural gas derivative instruments
(9)
(28)
(37)
(21)
(59)
(80)
Change in fair value of natural gas derivative instruments Change in revaluation of natural gas in storage to net realizable value
1
(16)
(15)
10
-
10
-
2
2
-
4
4
(8)
(42)
(50)
(11)
(55)
(66)
$
2
$
(13)
$
(11)
$
15
$
3
$
18
2019 2018 For the Six Months Ended September 30,
Asset
Asset
(millions)
Commodity Optimization Total
Commodity Optimization Total
Natural gas sales Natural gas sales to commodity customers
$
30
$
-
$
30
$
59
$
-
$
59
Realized on natural gas derivative instruments
-
66
66
-
116
116
Change in fair value of natural gas derivative instruments
-
3
3
-
(6)
(6)
30
69
99
59
110
169
Natural gas purchases Realized on natural gas derivative instruments
(27)
(59)
(86)
(47)
(115)
(162)
Change in fair value of natural gas derivative instruments Change in revaluation of natural gas in storage to net realizable value
-
(30)
(30)
25
(18)
7
-
-
-
-
16
16
(27)
(89)
(116)
(22)
(117)
(139)
$
3
$
(20)
$
(17)
$
37
$
(7)
$
30
26
2019-20 SECOND QUARTER REPORT
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