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.
Civil engineering is the discipline dealing with the design, construction, and maintenance, typically of public works such as roads, bridges, canals and buildings. Civil engineers can be involved in nearly every stage of a construction project – from site selection, writing specifications for materials, reviewing bids, and supervising construction. They aim to design and build structures that meet requirements for safety, reliability, cost, and energy efficiency.