Lake Chad the Yobe River in Nigeria/Niger. Despite high levels of evaporation, the lake is fresh water. Over half of the lake's area is taken up by its many small islands (including the Bogomerom archipelago), reedbeds and mud banks, and a belt of swampland across the middle divides the northern and southern halves. The shorelines are largely composed of marshes. Because Lake Chad is very shallow—only at its deepest—its area is particularly sensitive to small changes in average depth, and consequently it also shows seasonal fluctuations in size. Lake Chad has no apparent outlet, but its waters percolate into the Soro and
Chad–Cameroon Petroleum Development and Pipeline Project which provided $46.6 million to finance Cameroon and Chad's equity in COTCO and TOTCO. Included in plans for the project was a revenue management law developed by the World Bank. This separated the oil revenues given to Chad into four required areas: a Future Generations Fund, health, education and other development projects, a fund to compensate the Doba region of Chad from where the oil was extracted and government reserves. The revenue management law also created the Petroleum Revenue Oversight Committee, which oversees how the oil revenues are spent, and includes members of both the Chadian government and civil society.