W. Va. Code § 33-16D-13

Any employer subscribing to a health care benefit plan for or on behalf of its employees pursuant to this chapter shall not discriminate against any eligible employee on the basis of such employee's status with the employer by paying for all or part of the health care benefit plan premiums in a manner different from that provided any other eligible employee: Provided, That any participating small employer must pay at least twenty-five percent of each eligible employee's health care benefit plan premiums.