(1) A "county mutual insurer" is a farm mutual insurer authorized to insure property and liability risks located in the county in which its principal office is located and in the counties in this state with boundaries contiguous with the principal office county.
(2) A "farm mutual insurer" is an insurer that meets the qualifications of 33-4-101 (1).
(3) A "state mutual insurer" is a farm mutual insurer authorized to insure property and liability risks throughout the state.
(4) "Surplus" is the extent to which the value of an insurer's assets exceeds its liabilities.