United Fire Group is an insurance holding company. Through its consolidated subsidiaries and affiliates, Co. is engaged in the business of writing property and casualty insurance through a network of independent agencies. Co.'s property and casualty insurance business is reported as one business segment. Co.'s property and casualty insurance business is comprised of commercial lines insurance, including surety bonds, personal lines insurance and assumed reinsurance. All of Co.'s property and casualty insurance subsidiaries and its affiliate belong to an intercompany reinsurance pooling arrangement.