petroleum

StatoilHydro is the leading integrated energy company of Norway and the largest off shore oil and gas corporation in the world. It has operations in nearly 40 countries worldwide and was the result of a recent merger between Statoil and the oil and gas division of Norsk Hydro. StatoilHydro has been cited on a number of cases regarding environmental issues and corruption.

Occidental Petroleum Corporation's principal activity is sell crude oil and natural gas. The company's operations are carried out through many subsidiaries and affiliates. Two major subsidiaries are Occidental Chemical Corporation and Occidental Oil and Gas Corporation. The company also owns 76% of OxyVinyls, the primary maker of PVC in North America.