The Kuparuk River Oil Field, or Kuparuk, located in North Slope Borough, Alaska, United States, is the second largest oil field in North America by area.

[2] Oil was found in the Kuparuk sandstone on the Colville structure.

Production actually began December 13, 1981, on five small gravel drilling pads.

For the first six months of 2017 production averaged 84,334 barrels per day (13,408.0 m3/d) with a water cut of 87.4 percent.

During the first half of 2019 the pool averaged 71,021 barrels per day (11,291.4 m3/d) with a water cut of 88.7 percent.