Half of Oklahoma’s crude oil is produced in 10 counties, preliminary data from the state Corporation Commission show.
The three counties with the highest production — Carter, Ellis and Stephens counties — alone account for nearly a quarter of the 34.7 million barrels of crude oil and condensate produced in Oklahoma from January to June 2012.
Oil production, as you can see from the interactive map below, tends to increase as you move west. Oklahoma’s 11 easternmost counties haven’t produced any oil this year, and a diagonal band of relatively sparse production extends from Washington to Bryan County.
The state’s No. 1 producer, Carter County, has produced more than 3.7 million barrels — roughly 10.7 percent of all crude oil and condensate produced in Oklahoma this year.
Oklahoma Oil Production: 2012
Source: Oklahoma Corporation Commission | Download Data