Edward D. Doherty

SGI International develops and markets energy related technologies which include the liquids from coal process and the opti-crude enhancement technology process. The company through its subsidiary engages in the business of designing and manufacturing custom precision automated assembly equipment. It also attempting to develop the level sensor and asphaltenes processing technology and its sensor is characterized by a high degree of sensitivity and electrical stability. The company was founded in July 1980 and is headquartered in La Jolla, CA.

NuStar Pipeline Operating Partnership LP owns and operates refined petroleum products. It also operates ammonia pipeline and fertilizer pipeline business. The company is located in Richardson, TX.

NuStar Pipeline Partners LP provides petroleum transportation services. Its 2,090-mile east pipeline has product terminals and product tanks with a capacity of 3.5 million barrels. The company is headquartered in Richardson, TX.

Hiland Partners LP is a midstream energy partnership engaged in purchasing, gathering, compressing, dehydrating, treating, processing and marketing natural gas and the fractionating, or separating, and marketing natural gas liquids. Hiland Partners also provides air compression and water injection services to Continental Resources, Inc., a publicly traded exploration and production company controlled by affiliates of Hiland Partners' general partner for use in its oil and gas secondary recovery operations. The company's operations are primarily located in the Mid-Continent and Rocky Mountain regions of the United States. In the Partnership's midstream segment, it connects the wells of natural gas and crude oil producers in its operating areas to its gathering systems, treats natural gas to remove impurities, processes natural gas for the removal of NGLs, fractionates NGLs into NGL products and provides an aggregate supply of natural gas and NGL products to a variety of transmission pipelines and markets. The company is headquartered in Enid, OK.

Hiland Holdings GP LP was engaged in gathering, compressing, dehydrating, treating, processing, and marketing natural gas and fractionating natural gas liquids. It maintained natural gas gathering systems, processing plants, treating facilities, and NGL fractionation facilities. The company was founded in 1990 and was headquartered in Enid, OK.

Commonwealth Oil Refining Co., Inc. engages in the provision of oil refinery services. The company is headquartered in Fayetteville, GA.

NuStar Pipeline Co. LLC provides pipeline transportation services for refined petroleum products. The company is headquartered in San Antonio, TX.