So, they pillage the state by not paying the leasing fees. On the other hand they also rob the land from the Palestinians. Therefore there is a dual ownership of land: the state (of Israel) and the Palestininans (presumably as a whole; The Palestinians simply own the land regardless of if they can produce a single proof to that effect).
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)
from the article: Settlers pillaging the state