Tank District is a district in Dera Ismail Khan Division of Khyber Pakhtunkhwa province in Pakistan. The city of Tank is the capital of the district, which consists of Union Council City I and Union Council City II. There are sixteen Union councils of district Tank. Until 1992 Tank was a tehsil within Dera Ismail Khan District.:1 Tank is bounded by the districts of Lakki Marwat to the northeast, Dera Ismail Khan to the east and southeast, FR Tank to the north and the South Waziristan Agency to the west. The climate in Tank reaches 110–120 °F. However, in the cold, harsh winters in the mountains to the west, people come to Tank to enjoy a pleasant stay and then return during the summer.