Though most famously run by former Vice President Dick Cheney, Halliburton Energy Services was run by Thomas H. Cruikshank during the 80s and early 90s.  What was their primary area of operation?
Halliburton The Halliburton Company, an American multinational corporation. One of the world's largest oil field service companies, it has operations in more than 70 countries. It owns hundreds of subsidiaries, affiliates, branches, brands, and divisions worldwide and employs approximately 50,000 people.
Kosmos Energy Kosmos Energy is an American international oil company founded and based in Dallas, Texas. It is incorporated in Bermuda and has offices in Ghana, Mauritania, Senegal and Suriname. The company holds production and development operations offshore Ghana, in addition to discoveries and further exploration operations offshore Mauritania and Senegal, and exploration licenses offshore Sao Tome and Principe, Morocco and Western Sahara. It has been involved in the discovery and development of the Jubilee oil field off the coast of Ghana. Kosmos was a focus of a documentary "Big Men" that followed the company as it worked to establish the Jubilee oil field in Ghana.