Antero deductions reduce royalyies below the 12.5% minimum state law requirement

For the past 3 months, Antero has deductions on an 18% royalty lease on properties in Wetzel and Tyler Counties which reduces the royalty payment below the 12.5% minimum royalty required by West Virginia State Law (Code 22-6-8). This 12.5% minimum was affirmed by the West Virginia Supreme Court (Leggett vs EQT). Is this happening to other people and is there any legal recourse? Is there a way to create a class action lawsuit if Antero persists in this behavior?