West Bank areas in the Oslo II Accord
The Oslo II Accord divided the Israeli-occupied West Bank into three administrative divisions: the Palestinian enclaves as "Areas A and B" and the remainder, including Israeli settlements, as "Area C".
The Palestinian enclaves were created by a process of subtraction by allocating to Area C everything that the Israeli government considered "important", thereby consigning the vast majority of Palestinians in the West Bank to the remaining non-contiguous areas.
Area C forms a contiguous territory on 61% of the West Bank, and is administered solely by Israel via the Judea and Samaria Area administration. As of 2015, it is home to 150,000 Palestinians in 532 residential areas, and roughly 400,000 Israelis in 135 settlements and more than 100 unrecognized outposts.
In contrast, Areas A and B are subdivided into 165 enclaves of land that have no territorial contiguity. Area A is exclusively administered by the Palestinian National Authority; Area B is administered by both the Palestinian Authority and Israel. Area A comprises approximately 18% of the total territory of the West Bank and Area B about 22% of the territory, together home to some 2.8 million Palestinians.