J. Nichols

American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Its more than 400 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. They are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry.

Smedvig AS performs investment portfolio services. The firm invests across a range of asset classes and has considerable experience in investing in the natural resources sector globally. It offers direct investments within property, private equity, episodic and thematic investments, and invests with private equity funds, long only funds, and hedge funds. The company was founded in 1989 and is headquartered in Stavanger, Norway.

America's Natural Gas Alliance operated as an independent natural gas exploration and production company. The company was founded in 2009 and was headquartered in Washington, DC.

United Way of Central Oklahoma, Inc. provides funding to programs at non-profit agencies. The firm provides services to local donors, local businesses, non-profit organizations, government agencies, labor unions, and faith groups to deliver solutions for individuals and families in central Oklahoma. The company was founded in 1924 and is headquartered in Oklahoma City, OK.

Oklahoma Medical Research Foundation provides investment advice. The company was founded in 1946 and is headquartered in Oklahoma City, OK.

The Natural Gas Supply Association produce and market natural gas. The firm encourages the use of natural gas within a balanced national energy policy, and promotes the benefits of competitive markets to ensure transportation and delivery of natural gas and to the supply of natural gas to US customers. The company was founded in 1965 and is headquartered in Washington, DC.

Oklahoma Independent Petroleum Association operates as an oil and natural gas association. The company was founded in 1955 and is headquartered in Oklahoma City, OK.

American Stock Exchange LLC operates as stock and securities exchange. It offers trading of equities, options, exchange traded funds (ETFs) and structured products. The exchange provides a floor-based auction market that focuses in stocks, bonds and exchange-traded funds (ETFs). AMEX lists primarily small and midsized companies and newer issues. It also has a growing business in listing structured products and closed-end funds. The company was founded in 1842 and is headquartered in New York, NY.