Petrified wood or something else?

[Emyloucifer]

Hello, new here. I found this off the side of the highway 95 near the Nevada/Oregon state line. I’m thinking it’s petrified wood, but I don’t know enough to be certain. Your help and opinions would be greatly appreciated! 
It’s pretty heavy and hard, smooth on 5 sides and rougher on one.
A strange thing, could just be environmental, the “rough” side of the rock has a strange smell, kinda of like old cooking oil.
photos of “sides” attached. I’ll add photos of top bottom and a few others in comments.

 

 

Edited October 15, 2019 by Emyloucifer

[Emyloucifer]

[grandpa]

Hello, and WELCOME to TFF from Austin, Tx.  We're glad to have you become a part of our group. 

 

Yes, I believe you definitely have a nice chunk of petrified wood there.  I like the light tan to dark caramel coloring of that piece, very nice.

[Tidgy's Dad]

Yup, nice piece of petrified wood. 

And welcome to the forum from Morocco. 

[Emyloucifer]

Thank you both! I thought so, but then I second guessed myself.