That's nice. Yes, it's certainly possible to have petrified wood and agate/chalcedony geode in combination with one another and the general appearance of what you have would fit that. To be sure you need to have a really good look with a decent loupe to check for residual cellular structure but from what I can see at this magnification it looks promising. Appearances can be deceptive though.
Red-Coat is right. While your initial images look promising, not all is as it seems. I have found, over the decades, several geodes that were petrified wood, and several others that looked like petrified wood until the loupe came out at the hands of an experienced geologist.
Yes it does, with more emphasis on the interest than the value. To a collector (who would ideally want to know the location it came from) we would only be talking tens of dollars.
But where in Oregon? Over 500 known geode beds. Over 500 sites with an abundance of petrified wood. Fewer with anything a serious collector or lapidary would call quality. Each location has its fans and detractors. One of my favorite wood areas is SE of Jordan Valley, on both sides of Idaho border.