J. Michael Cockrell

TEPPCO Partners LP is a publicly traded energy logistics partnership with operations that span much of the continental United States. TEPPCO owns and operates an extensive network of assets that facilitate the movement, marketing, gathering and storage of various commodities and energy-related products. The partnership's midstream portfolio of assets comprises pipelines that gather and transport refined petroleum products, crude oil, natural gas, liquefied petroleum gases (LPGs) and natural gas liquids (NGLs), and includes one of the largest common carrier pipelines for refined petroleum products and LPGs in the United States. TEPPCO also owns a marine business that operates primarily on the United States inland and Intracoastal Waterway systems, and in the Gulf of Mexico.

BlueKnight Energy Partners LP engages in the operation of independent asphalt facilities. It provides integrated terminalling services for companies engaged in the production, distribution, and handling of liquid asphalt. The company was founded on February 22, 2007 and is headquartered in Tulsa, OK.

Part of Vitol Holding II SA, SemGroup Energy Partners GP LLC operates crude oil assets. The private company is based in Tulsa, OK. SemGroup Energy Partners GP was acquired by Vitol, Inc. from SemGroup LP on November 24, 2009.

Part of Enbridge, Inc., Spectra Energy Transport & Trading Co. LLC is a private company that gathers, stores, transports, and markets crude oil. The company is based in Hallettsville, TX. Spectra Energy Transport & Trading Co. was acquired by Enterprise TE Partners LP, a subsidiary of Enterprise Products Partners LP from Duke Power Co. LLC on November 30, 1998.

Part of Blueknight GP Holding LLC, Blueknight Energy Partners GP LLC is a private company that provides transportation services. The company is based in Tulsa, OK.