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Subcategories
This category has the following 63 subcategories, out of 63 total.
A
B
C
- Natural gas fields in Canada (12 P)
- Natural gas fields in China (10 P)
D
E
F
G
H
I
- Natural gas fields in Iran (18 P)
J
K
M
N
- Natural gas fields in Norway (21 P)