Boardwalk Pipeline Partners, LP, through its subsidiaries, operates integrated pipeline and storage systems for natural gas, natural gas liquids (NGLs), olefins, and other hydrocarbons in the United States. The company operates in two segments: Natural Gas and NGL. It provides transportation and storage services for the natural gas and NGLs industry; ethane supply and transportation services for industrial customers in Louisiana and Texas. The company operates integrated natural gas pipeline and storage systems in the Gulf Coast region, Oklahoma, Arkansas, Tennessee, Kentucky, Illinois, Indiana, and Ohio; NGLs pipelines and storage facilities in Louisiana and Texas; and natural gas storage facilities in Louisiana and Mississippi. Its interconnected natural gas pipelines serve customers directly and indirectly throughout the northeastern and southeastern United States through various interconnections with unaffiliated pipelines. It also owns and operates NGL pipelines in Louisiana and Texas. In addition, it has underground storage caverns for natural gas and NGLs. It serves electric power generators, producers and marketers of natural gas, local distribution companies, industrial users, exporters of liquefied natural gas, and interstate and intrastate pipelines. The company was incorporated in 2005 and is headquartered in Houston, Texas. Boardwalk Pipeline Partners, LP operates as a subsidiary of Boardwalk Pipelines Holding Corp.