The upstream sector is used to refer to the search for, followed by the recovery and production of, crude oil and natural gas. This sector is also widely known as the exploration and production (E&P) sector. Stages within the upstream petroleum-product industry include the search for underground or underwater oil and gas fields, the drilling of exploratory wells and, if the wells are deemed economically viable and recoverable, the operation of wells that bring crude oil and raw natural gas to the well's surface.

Ups Tream Projects of oil and gas industries are referred to the process of production and exploration. This involves the search of natural gas and crude oil by means of latest technology and machines. This sector is widely known as exploration and production sector.