10. Natural gas sales and purchases (continued)
For the Six Months Ended September 30 2018 2017 Gas Gas
Commodity Marketing Total
(millions)
Commodity Marketing Total
Natural gas sales Natural gas sales to commodity customers
$
59
$
-
$
59
$
38
$
-
$
38
Realized on natural gas derivative instruments
-
116
116
-
103
103
Change in fair value of natural gas derivative instruments
-
(6)
(6)
-
6
6
59
110
169
38
109
147
Natural gas purchases Realized on natural gas derivative instruments
(47)
(115)
(162)
(36)
(90)
(126)
Change in fair value of natural gas derivative instruments Change in revaluation of natural gas in storage to net realizable value
25
(18)
7
2
(2)
-
-
16
16
-
(7)
(7)
(22)
(117)
(139)
(34)
(99)
(133)
$
37
$
(7)
$
30
$
4
$
10
$
14
11. Delivery revenue
For the Three Months Ended September 30
For the Six Months Ended September 30
2018
2017
2018
2017
(millions)
Basic monthly charge
$
29 13
$
28 10
$
59 33
$
57 26
Delivery revenue
Other
1
1
3
2
$
43
$
39
$
95
$
85
12. Transportation and storage revenue
For the Three Months Ended September 30
For the Six Months Ended September 30
2018
2017
2018
2017
(millions)
Transportation Firm
$
31
$
29
$
62
$
58
Interruptible
2 1
2 1
4 2
3 2
Other
34
32
68
63
Storage
2
2
5
5
$
36
$
34
$
73
$
68
26
2018-19 SECOND QUARTER REPORT
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