Iroquois Gas

Natural gas imports into the Northeast US from Canada have fallen to around 1 Bcf/d from 3 Bcf/d in 2008. Infrastructure projects are underway or planned to replace Canadian supplies with gas from rapidly expanding Marcellus and Utica production. US gas is already flowing into Ontario at Niagara and will flow into Dawn if one or more Utica gas export projects are built. . Meantime the proposed Constitution pipeline from the Eastern Marcellus to New York would replace Canadian supplies into New York on the Iroquois pipeline. Today we review the next pieces of the reversal puzzle.

Northeast regional interstate pipeline companies are coming to terms with significant supply growth expected between now and 2017. Companies that traditionally delivered natural gas to the Northeast from outside the region are busy reconfiguring their assets.

In two previous postings in this series we examined the major infrastructure projects being developed by interstate natural gas pipelines in response to the growth of Northeast natural gas production in the Marcellus shale.  We reviewed projects developed by Tennessee Gas Pipeline (TGP), and then Spectra Energy (see TGP and Spectra). This time we look at the projects being pursued by Williams Companies through it Transcontinental Gas Pipeline Company (Transco) and its Master Limited Partnership (MLP) Williams Partners.