Lake Atoka Reservoir (also called Atoka Lake) is a reservoir in southeastern Oklahoma, 4 miles north of Atoka, Oklahoma, county seat of Atoka County, Oklahoma. It was built in 1959 to expand the water supply for Lake Stanley Draper in Oklahoma City and Atoka.

Description

The lake has a surface area of 5700 acres, an average depth of 26 meters, 70 miles of shoreline and a capacity of 105195 acre-feet. Its length is 15 miles.

Litigation over water rights

Atoka Lake is mentioned along with Sardis Lake, the Kiamichi Basin and the Clear Boggy Basin in a current court case (now known as Chickasaw v. Fallin), alleging that the state has violated the water rights of specific Native American tribes. The case was filed in 2011, and seeks to prevent of limit withdrawals of water from the named sources by the city of Oklahoma City and approved by the Oklahoma Water Resources Board.