2023 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2022 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2021 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2019 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2018 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2016 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2015 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2014 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations

2010 West Virginia Code 22C-9-8 – Secondary recovery of oil; unit operations