Chad Basin depth of . Due to heavy pumping, since the start of the 1980s the water levels in both aquifers has been lowered, and some wells no longer function. There is a third, much lower, aquifer in Bima Sandstones that lies at a depth of . Both the current and historical areas of the basin and the mega-basin contain concentrations of fossils. Fossil-fuels deposits in the area are estimated to exceed a trillion barrels in reserves. The Lake Chad Basin Commission was set up in 1964 by Cameroon, Chad, Niger and Nigeria, the four countries that contain parts of Lake Chad.
Chad–Cameroon Petroleum Development and Pipeline Project Cameroon, and that the revenues be put towards improving social and economic conditions. Since 1990, President Idriss Deby has been the head of government in Chad, where presidential elections are held every five years. Chad's economy is dependent mainly on agriculture and livestock. It heavily relies on foreign assistance and foreign capital, as well as international investment projects. Because of Chad's landlocked borders, its economy struggles from a lack of resources and instability between rebel groups. The country also serves as a host to thousands of refugees from neighboring Sudan and Central African Republic, as well as many victims of