Pierce Norton

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.

Interstate Natural Gas Association of America operates as a not-for-profit organization. It specializes in the natural gas pipeline industry. The firm regulates the safety, environment, construction, economics, security, and operations of the industry. The company is headquartered in Washington, DC.

Western Energy Alliance is a nonprofit trade association based in Denver, CO, representing 300 companies engaged in environmentally responsible exploration and production of oil and natural gas in the west. The company believes in the principle of multiple use of non-park, non-wilderness public lands and has consistently stressed the importance of public lands advocacy over many years. The company is an advocacy organization promoting the best practices in the industry.

North Dakota Petroleum Council, Inc. operates as a non-profit organization. It provides governmental relations support to the companies it represents who are involved in all aspects of the oil and gas industry. The company was founded in 1952 and is headquartered in Bismark, ND.

Guardian Pipeline LLC provides natural gas distribution and transportation services. The company was founded in 2002 and is headquartered in Omaha, NE.

The American Gas Association represents over 200 energy companies that provide natural gas service to 180 million Americans. The private company is based in Washington. The American company's natural gas utilities are committed to reducing greenhouse gas emissions through new and modernized infrastructure and advanced technologies that maintain reliable, resilient, and affordable energy service choices for consumers. The company advocates on behalf of its member natural gas distribution utilities before Federal agencies in the area of energy market regulation.