The assets are located in SNG’s supply area south of the Toca compressor station on its east leg.
The proposed sale includes about 621 miles of onshore and offshore pipeline ranging from four-inches to 26-inches in water depths of up to 1,000ft, including four platforms, about 68 active receipt points and 25 active delivery points.
It also includes certain related pig launching and receiving equipment, machinery, electronic flow measurement and communications equipment, rights of way, easements, permits and line pack.
The transaction, which is expected to close in 2012, is subject to FERC approval and certain other customary closing conditions.
ArcLight and HPE have also agreed to contribute certain other related pipeline assets to HPGT.
The companies plan to grow the business by partnering with local producers to develop and maintain the infrastructure and producer services needed to grow Gulf Coast oil and gas production and by completing targeted acquisitions and capital projects.
