A part of Petroleum Industry related to exploration and production of hydrocarbons (also called Exploration & Production or E&P).
The engineering part of Upstream operations is called Petroleum Engineering which is essentially based on the knowledge areas of:
The primary subject of E&P is exploration of a new or acquisition of existing Petroleum Asset and maintaining a profitable production from it.
The Upstream industry is split into two major operational areas: Petroleum Exploration and Petroleum Production.
See also
Petroleum Industry (Oil & Gas Industry)
[ Well ] [ Well Drilling ]