The main picture most people have of the oil industry is that of offshore installations and the personnel working in a distinctive environment. While exploration and production are certainly at the industry's cutting edge, they could not continue without the support of many other traditional business activities. The infrastructure of all commercial enterprises is made up of a wide variety of specialised and general support services, such as accounting, legal departments, IT systems and the whole range of administrative functions. The oil industry needs a lot of people with wide variety of skills.