Mount Apo owner contract arrangement. Located in Barangay Ilomavis, Kidapawan City, North Cotabato is the "Mindanao Geothermal Production Field" with a power output of 108.48 MW, currently the only power plant of its kind in Mindanao. The Philippine National Oil Company geothermal plant supplies electricity to Kidapawan and its neighboring provinces, its completion boosted the city's economy. The Tudaya Hydropower Plants, located near the foot of Mount Apo on the Davao side (Sta. Cruz, Davao del Sur), is composed of two run-of-river type plants that will contribute to the energy needs of Mindanao by early 2014. The Sibulan Hydroelectric Power Plants have
Apo Reef and is about in depth. Likewise, reef limestone and coralline sand on the east and southeastern sides dominantly underlie the area. The main geographical feature of Apo Reef is submerged, but three islands mark it on the surface: the Apo Island, Apo Menor (locally known as "Binangaan") and Cayos del Bajo ("Keys of the bank", locally known as "Tinangkapan"). The islands are uninhabited. Since the declaration of “no-take-zone” policy at Apo Reef Natural Park in 2007, only protected area personnel and members of the Task Force MARLEN (Marine and Apo Reef Law Enforcement for Nature), who are task to implement