Walter Arnheim

Mobil Corp. operates primarily in the petroleum industry. The company is headquartered in The Woodlands, TX.

Spinnaker Exploration Co. was an independent energy company engaged in the exploration, development and production of natural gas and oil in the U.S. Gulf of Mexico. It was headquartered in Houston, TX.

H. Muehlstein & Co., Inc. provides marketing and distribution of plastic and rubber polymers. Its products include engineering resins, polyethylene, polypropylene and polystyrene, polybutadiene, styrene-butadiene rubber & specialty compounds. The company was founded by Herman Muehlstein in 1911 and is headquartered Orlando, FL.

Magellan Midstream Holdings LP owns and controls Magellan GP LLC, which is the general partner of Magellan Midstream Partners LP(MMP). It is engaged in the transportation, storage and distribution of refined petroleum products through its subsidiaries. MMP's assets consist of an approximately 8,700-mile petroleum products pipeline system, including 49 petroleum products terminals serving the mid-continent region of the United States, referred to as the petroleum products pipeline system, seven petroleum products terminal facilities located along the United States Gulf and East Coasts, referred to as marine terminal facilities, and 27 petroleum products terminals located principally in the southeastern United States, referred to as inland terminals and a 1,100-mile ammonia pipeline system serving the mid-continent region of the United States. The company was founded in 2003 and is headquartered in Tulsa, OK.

Part of Magellan Midstream Partners LP, Magellan GP LLC is a company based in Tulsa, OK. Aaron L. Milford has been the CEO of the company since 2004.

Washington National Opera operates as an opera company. The company was founded in 1956 and is headquartered in Washington, DC.

Opera Lafayette operates a hotel. The non-profit company is based in Washington.