Dan,
Wondering if you have anyone who is an expert on the structural aspects of the SPR. I could only find this article from 2016, and would be highly interested an updated status on the salt domes from structural and go-forward basis.
https://www.aapg.org/publications/news/spheresofinfluence/details/articleid/36728/the-good-the-bad-and-the-ugly-the-strategic-petroleum-reserve#:~:text=These%20multiple%20drawdowns%20have%20caused,shrinking%20due%20to%20tectonic%20stresses.
Thanks
Scott