You can pump your own in parts of Oregon now

In order to pump your own gas in "rural" Oregon the gas pumps have to accept credit/debit card payments(many have never been updated) and the station has to be willing to participate in self service. Don't expect that all Oregon "rural" fuel facilities will allow you to pump your own gas, as most currently do not.

With respect to diesel, some stations are only "self service", while others won't allow it(station owner decision).