As home to supermajors, as well as a plethora of smaller, independent energy players, the US boasts one of the largest concentrations of energy personnel in the world. With its insatiable appetite for energy resources, the United States is the world's single largest consumer of oil, using as much as 20.73 million barrels per day as of 2008. Recently, interest has peaked in the vast quantity of untapped natural gas resources in the US, the reserves of which were inventoried in 2008 at 238 Tcf, with producers specifically targeting the nation's promising shale formations for this energy commodity.
An Executive generally relates to a position at the highest level of organizational management, tasked with the day-to-day management of a company or department. Executives are usually positioned at the head of products, geographic units or specific functions such as the Chief Financial Officer. They are often referred to collectively as executive or higher management, and include titles such as Chief Executive Officer, Chief Information Officer and Chief Operation Officer.