Line of succession is governed by the Oregon Constitution. (Note: Oregon does not have a Lieutenant Governor.)
You can also click on the “Bills Signed by Governor Kitzhaber (2013)” line for a full view of the data-set. (This link may change over time. If so, visit the Oregon Governor’s website to find new URL.)
You can read the Governor’s signing statements, too.
From the Washington County (Oregon) Law Librarian:
How does one request a pardon? I wish I could say, “let me count the ways.” But I can’t and highly recommend you talk to your lawyer, if you have one, or that you call the Oregon State Bar (OSB) to find a lawyer who can advise you (or read this How to Find a Lawyer in Oregon guide, which also links to the OSB).
And here’s what else I’ve learned about Oregon pardons (for crimes committed under Oregon state law). There may be more in future posts and you can also let me know if you have anything to add: