Our Subsidiaries

A connected network united in powering possibility

Boardwalk's integrated network serves the natural gas and natural gas liquids markets throughout the southeastern United States. While each subsidiary plays a unique role, we are united by a shared commitment to safety, reliability and operational excellence. Together, we provide the energy infrastructure that helps fuel communities, drive industries and power possibility across our nation.

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Texas Gas Transmission, LLC

An interstate natural gas pipeline system transporting gas from the Gulf Coast to the Midwest and Southeast. Texas Gas connects to major shale plays and serves utilities, power generators and industrial customers.

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Gulf South Pipeline Company, LLC

A key natural gas transmission system serving the Gulf Coast and Southeast regions. Gulf South provides transportation and storage services to a range of customers, including local distribution companies and power generators.

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Boardwalk Louisiana Midstream, LLC

Provides natural gas liquids (NGL) and industrial gas services to petrochemical and refining customers along the Gulf Coast, with strategically located infrastructure to support high-demand industries.

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Boardwalk Petrochemical Pipeline, LLC

Specializes in the transportation of petrochemical products, supporting Gulf Coast industrial supply chains and helping move critical materials to market.

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Boardwalk Storage Company, LLC

Owns and operates underground natural gas storage assets that enhance system flexibility, support seasonal demand and helps enable reliable delivery to end users.

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Boardwalk Texas Intrastate, LLC

Delivers natural gas within Texas, connecting production areas to regional markets and to pipeline interconnects across the state.

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Boardwalk Louisiana Gas Transmission, LLC

Provides intrastate natural gas transportation services within Louisiana, helping meet industrial and utility needs throughout the region.

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Bayou Ethane Pipeline Company, LLC

Owns and operates a long-haul ethane transportation system that connects one of the nation’s largest supply hubs in Mont Belvieu, Texas helping serve major petrochemical markets in Texas and Louisiana.