Some states have monopolistic funds, which are the only market for workers compensation insurance in those states. Other states have competitive funds that compete with insurers in that state. (Note that several of these funds also write workers compensation in additional states.) The monopolistic fund states are North Dakota, Ohio, Washington, and Wyoming. Puerto Rico and the US Virgin Islands also have monopolistic funds. Currently, 19 other states offer the option of purchasing workers compensation insurance from a competitive state fund.