William Cordes

ONEOK Partners LP engages in gathering, processing, storage, and transportation of natural gas. The company was founded in 1993 and is headquartered in Tulsa, OK.

Part of ONEOK, Inc., Northern Plains Natural Gas Co. is a private company that drills for gas. The company is based in Joliet, IL. The CEO of the company is David L. Kyle. Northern Plains Natural Gas was acquired by ONEOK, Inc. on November 17, 2004 for $175 million.

Northern Border Pipeline Co. engages in the provision of natural gas transportation system. It links the Midwestern United States with reserves in the Western Canadian Sedimentary Basin. The company was founded in 1978 and is headquartered in Houston, TX.

Boardwalk Pipeline Partners LP provides transportation, storage, gathering and processing services for natural gas and natural gas liquids. It gathers, processes, and transports natural gas and natural gas liquids. The company was founded in November 2005 and is headquartered in Houston, TX.

Kayne Anderson Energy Infrastructure Fund, Inc. operates as a closed end management investment trust, which invests principally in equity securities of energy-related master limited partnerships. Its investment objective is to obtain high after-tax total returns for its shareholders. The company was founded on June 4, 2004 and is headquartered in Houston, TX.

Part of Loews Corp., Boardwalk GP LLC is a private company that provides gas transportation and storage services. The company is based in Houston, TX. Stanley C. Horton has been the CEO of the company since 2011.

Kayne Anderson NextGen Energy & Infrastructure, Inc. is a closed-end management investment company. The firm focuses in securities of companies in the midstream and energy sector, consisting of Midstream Master Limited Partnerships (MLPs), Midstream Companies, Other MLPs, and Other Energy Companies. It intends to provide a high level of total return with an emphasis on making quarterly cash distributions to its stockholders. The company was founded on November 24, 2010 and is headquartered in Houston, TX.

Northern Natural Gas Co. operates an interstate natural gas pipeline. It provides natural gas transportation and storage services to utilities and end-use customers. It also offers cross-haul and grid transportation between other interstate and intrastate pipelines. The company was founded in 1930 and is headquartered in Omaha, NE.