W. Va. Code § 60-2-7: Oath and bond.

Before entering upon the duties of the office, the commissioner shall take and subscribe to the oath prescribed by section 5, article IV, of the Constitution of this state, and shall give bond in the penalty of $25,000, to be approved by the Governor and conditioned upon the faithful performance of the duties of the office and the accounting for and payment into the treasury of all moneys coming into the commissioner's custody by virtue of the office. The bond and oath shall be filed with the Secretary of State.