Oil politics: Unocol-Chevron employee Tariq Fatemi is Pakistan PM Nawaz Sharif’s Advisor on Foreign Affairs: Union Oil Company of California, Unocol, is known for the dubious role it played in Afghanistan before and after 9/11. On August 10, 2005, Unocal merged with Chevron Corporation, one of the world’s “supermajor” oil companies (also known as