W. Va. Code § 3-10-5 — WV Code / Chapter 3 / Article 10 / Section 5
§3-10-5. Vacancies in state Legislature.
Status: in_force

(a) Any vacancy in the office of state senator or member of the House of Delegates shall be filled by appointment by the Governor, from a list of three legally qualified persons submitted by the party senatorial district executive committee or party delegate district executive committee, or, in the case of a single-county senatorial or delegate district, the county executive party, as applicable, of the same political party with which the person holding the office immediately preceding the vacancy was affiliated at the time of the previous election for that office. The list of qualified persons to fill the vacancy shall be submitted to the Governor within 15 days after the vacancy occurs and the Governor shall duly make his or her appointment to fill the vacancy from the list of legally qualified persons within five days after the list is received. If the list is not submitted to the Governor within the 15-day period, the Governor shall appoint within five days thereafter a legally qualified person of the same political party with which the person holding the office immediately preceding the vacancy was affiliated at the time of the previous election for that office: Provided , That any such person appointed by the Governor must have been affiliated with that political party for at least one year prior to the occurrence of the vacancy.

(b) In the case of a member of the House of Delegates, if the member was elected to a multi-county delegate district, the list shall be submitted by the party executive committee of the delegate district in which the vacating member resided at the time of his or her election or appointment. If the member was elected to a delegate district situated entirely within a single county, the list shall be submitted by the county executive committee in which the vacating member resided at the time of his or her election or appointment. The appointment to fill a vacancy in the House of Delegates is for the unexpired term.

(c) In the case of a state senator, if the member was elected to a multi-county senatorial district, the list shall be submitted by the party executive committee of the state senatorial district in which the vacating senator resided at the time of his or her election or appointment. If the member was elected to a senatorial district situated entirely within a single county, the list shall be submitted by the county executive committee in which the vacating member resided at the time of his or her election or appointment. The appointment to fill a vacancy in the state Senate is for the unexpired term, unless §3-10-1 of this code requires a subsequent election to fill the remainder of the term, which shall follow the procedure set forth in said section.

(d) No person may be appointed to fill a vacancy in the office of state senator or as a member of the House of Delegates who has not for one year preceding the appointment been a resident within the district he or she will represent. Notwithstanding any provision of this code to the contrary, the process to compose and submit the list, which is required to be submitted by the political party under which the person holding the office immediately preceding the vacancy was elected, shall be governed by the rules of the state executive committee of that political party.