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Go West, Young Molecule – Natural Gas Flows on REX’s Zone 3 East-to-West Expansion

Tallgrass Energy’s Rockies Express Pipeline (REX) last week received final approval to begin construction on its Zone 3 Capacity Enhancement expansion project (Z3CE), which would expand east-to-west capacity out of the Marcellus/Utica shale production area to a record 2.6 Bcf/d. This project comes on the heels of REX’s East-to-West expansion (E2W), which came online last August and in one fell swoop gave Northeast producers their first substantial westbound firm forward-haul transportation capacity, totaling a full 1.8 Bcf/d. The upcoming Z3CE capacity (0.8 Bcf/d) will mark yet another milestone in the Great Pipeline Reversal that’s expected to ease supply congestion in the Northeast and support beleaguered Marcellus/Utica pricing points. That new capacity is not due in-service until late 2016. But now with nearly a full winter’s worth of pipeline flow data for the first E2W expansion, we can get a preview of potential impacts of the additional capacity on flows and pricing. Today we look at winter-to-date gas flows on REX and what they tell us about the Marcellus/Utica market.

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