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.
Well servicing and testing refers to activities done to already existing wells. Well interventions, well integrity activities, or general well work are usually classified under well servicing. Well testing is a planned acquisition of data from the reservoir of a well. The data gathered is then used to determine a well’s capacity for producing oil or gas.