Charles W. Porter

Energen Corp. is an independent oil and natural gas company, which engages in the acquisition, development, exploration, and exploitation of onshore oil and natural gas reserves. Its portfolio includes the Permian Basin in West Texas. The company was founded on October 26, 1978 and is headquartered in Montgomery, AL.

Spire Alabama, Inc. engages in the purchase, retail distribution, and sale of natural gas principally in central and northern Alabama. It offers services to commercial and industrial customers. The company was founded in 1948 and is headquartered in Birmingham, AL.

Energen Resources Corp. engages in the exploration of oil and natural gas. The company is headquartered in Birmingham, AL.

The American Institute of Certified Public Accountants provides vocational education in accounting. The company provides services to the accounting community, regulatory bodies, and other organizations. It also operates in Jersey City, Washington, and Lewisville. It was founded in 1887 and is headquartered in New York City, NY.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.