Transaction Details

Footnotes

The reporting transaction was effected pursuant to a written election under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives made on or about June 1, 2021. At the time made, the election was intended to satisfy the then-current Rule 10b5-1. The election has not been entered into, modified or terminated since the original election date. | Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.