2024 26 USC 179C – Election to expense certain refineries

2023 26 USC 179C – Election to expense certain refineries

2022 26 USC 179C – Election to expense certain refineries

2021 26 USC 179C – Election to expense certain refineries

2020 26 USC 179C – Election to expense certain refineries

2018 26 USC 179C – Election to expense certain refineries

2017 26 USC 179C – Election to expense certain refineries

2015 26 USC 179C – Election to expense certain refineries

2014 26 USC 179C – Election to expense certain refineries