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.
CAD/ CAM is a computer-aided design/computer-aided manufacturing system used to create, modify, analyze, and manufacture products. CAD is used in many fields to assist with engineering, finite element analysis, and creating 2D and 3D models that lower product development costs and shorten the design cycle. CAM software is actually able to control machinery used to manufacture products, or in some cases, may control all operations in a manufacturing plant.