East Texas Oil Field

The East Texas Oil Field is a large oil and gas field in east Texas. Covering 140,000 acres (570 km) and parts of five counties, and having 30,340 historic and active oil wells, it is the second-largest oil field in the United States outside of Alaska, and first in total volume of oil recovered since its discovery in 1930.^[1] Over 5.42 billion barrels of oil have been produced from it to-date.^[2] It is a component of the Mid-Continent Oil Province, the huge region of petroleum deposits extending from Kansas to New Mexico to the Gulf of Mexico.

• http://en.wikipedia.org/wiki/East Texas Oil Field