Murphy Oil Corp

Founded in 1882, Penn Virginia Corporation is engaged in the exploration, development and production of oil and natural gas, primarily in the eastern and Gulf Coast areas of the United States. Additionally, the company collects royalties on various oil and gas properties in which it owns a mineral fee interest. Penn Virginia employs more than 100 people, including nearly 35 employees who directly provide services through its general partner, Penn Virginia Resources. The company maintains its corporate offices in Radnor, Pa. Penn Virginia Corporation s common units are traded on the New York Stock Exchange under the symbol PVA.

Gaither Petroleum Corporation originally formed in 1985 as Petroleum Resources of Texas Inc., provided contract services for operators in the southwestern United States. Currently, it operates as an independent oil and gas company .Located in Houston, Texas, the firm specializes in the management and rejuvenation of existing fields and joint venture exploration for the development of new fields. It focuses on underdeveloped, smaller and marginal oil/gas properties. Gaither Petroleum Corporation has affiliations with various industries, such as Atlas Petroleum Exploration Worldwide (APEX), Quantum Investment Group and Innovative Energy Services Inc.

Petrobras America, also known as PAI is an indirect subsidiary of Petroleo Brasileiro, which is one of the leading oil companies worldwide and employs more than 60,000 employees. Incorporated in 1987, Petrobras America manages several refineries throughout the United States and has over 265 employees from nearly 30 nationalities and ethnic groups worldwide. It maintains a procurement management department that handles logistics and crude oil procurement and transportation services. The company works for the improvement of workplace safety, operational security and environment protection services. Petrobras America focuses on risk identification, control and monitoring services for the protection of human life and environment.