-
Bidboland 2 gas refining co.
-
Zanjan gas co.
-
Tehran province gas co.
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SGPC
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Hamedan gas co
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Sarkhoon & qeshm gas treating co. (SQGC)
-
Esfahan gas co.
-
Parsian gas refining co. (PGRC)
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Gilan gas co.
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South pars gas complex (SPGC)
