For the purposes of this article the following definitions shall apply:
Any insurer who is doing an insurer business, or has transacted insurance in this state, and against whom claims arising from that transaction may exist now or in the future;
This shall include, but not be limited to, any domestic insurer as defined in section six, article one of chapter thirty-three and any foreign insurer as defined in section seven, article one of said chapter thirty-three including any stock insurer, mutual insurer, reciprocal insurer, farmers' mutual fire insurance company, fraternal benefit society, hospital service corporation, medical service corporation, dental service corporation, health service corporation, health care corporation, health maintenance organization, captive insurance company or risk retention group.
W. Va. Code § 33-34-1