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.
Subsea Engineering deals with the design and analysis of underwater structures for oil and gas fields in which the production wellhead is on the seabed. Subsea engineers specialize in systems made up of risers, umbilicals, and flowlines for these fields located offshore. Designing tools and equipment to be used on the ocean floor requires a working knowledge of underwater procedures, reliability of materials in the presence of corrosion due to sea water, and more.