This page provides access to IRS Form 990 filings associated with WILLISTON BASIN CHAPTER OF THE AMERICAN PETROLEUM INSTITUTE. Form 990 is an annual information return filed with the IRS and includes details on finances, governance, and charitable activities. Browse filings by year and download IRS tax return PDFs.
| Year | Status | Form Type | PDF |
|---|
2026 | Unavailable N/A | No file | No file |
2025 | Unavailable N/A | No file | No file |
2024 | | 990 | |
2023 | | 990 | |
2022 | | 990 | |
2021 | | 990 | |
2020 | | 990 | |
2019 | | 990 | |
2018 | | 990 | |
2017 | Unavailable N/A | No file | No file |
2016 | Unavailable N/A | No file | No file |
2015 | Unavailable N/A | No file | No file |
2014 | Unavailable N/A | No file | No file |
2013 | Unavailable N/A | No file | No file |