Harvesting an abundance of oil and natural gas resources, the Middle East supplies nearly half of all exports to the global oil market. Middle Eastern countries Iran, Iraq, Kuwait, Qatar, Saudi Arabia and the United Arab Emirates are all members of the Organization of the Petroleum Exporting Countries (OPEC), which pumps roughly 40% of the world's oil, with Saudi Arabia leading the pack for the greatest amount of output. OPEC's crude oil production was 28.7 million barrels per day in the first half of 2009.
In general, process control refers to maintaining the output of a specific process within a desired range. Process control also enables automation, which allows a smaller staff to control a large operation. In the oilfield, many operations are run by process controls including valves, mud pumps, vessels and instruments. Testing and monitoring of systems can also be automated. Jobs in this field vary from engineers responsible for designing and programming equipment, to technicians responsible for maintenance and monitoring of control systems.