EOG Resources, Inc.(EOG) explores , develops, produces and markets crude oil and natural gas primarily in producing basins in the United States of America , Canada, The Republic of Trinidad and Tobago (Trinidad), the United Kingdom , The People's Republic of China (China), the Argentine Republic (Argentina) and, from time to time, select other international areas. As of December 31, 2012, EOG's total estimated net proved reserves were 1,811 million barrels of oil equivalent, of which 701 million barrels were crude oil and condensate reserves, 320 million barrels were natural gas liquids (NGLs) reserves and 4,740 billion cubic feet, or 790 million barrels of oil equivalent, were natural gas. EOG's operations are all crude oil and natural gas exploration and production related.