As reported on Oregonlive by Everton Baily, Jr:

“The agency announced Monday that it reached agreements with nearly two dozen companies, including Chevron, Exxon and Shell Oil, between December and last Wednesday to restore eight portions of the Portland Harbor Superfund site.”

Read the full article at: https://www.oregonlive.com/portland/2020/03/24-million-reimbursement-fund-bolsters-number-of-firms-agreeing-to-clean-contaminated-portland-harbor.html