Kok Kung Reservoir is located at Moo 1, Nong Haen Sub-district, with a water surface area of approximately 100 rai; it is approximately 30 kilometers from Kut Chum District, between Phu Thang Kwian and Phu Phae. The fisheries are released in the near future, hoping to produce more lobster products. Since on September 16, 2002, the Yasothon senator, Mr. Somboon Thongburan, together with Kut Chum District Chief and Nong Naen Subdistrict Administrative Organization have jointly released 200,000 lobsters because it is the largest water source of Tambon Nong Haen, along with the surrounding mountains and forests are also very rich, Ang Kok Kung is like a diamond hidden in the middle of the forest.