On Sunday, the Stanford head coach had the favor returned, when Oser told Shaw he wanted to play for Stanford.
"We were at breakfast and I told Coach Shaw I was committing to Stanford," said Oser. "Coach Shaw was very excited and he was the one who offered me back in June and he was the one who told me I was admitted, so I told him I was committing. I was really excited about it and he was too."
But the opportunity to play at Stanford while getting a degree from there, was too good to pass up.
"I wanted to make sure it was the right place and I wanted to take some visits before I committed," said Oser. "When I got the admission, it became more of a reality in my mind and once I got up there, I spent some time with the team and really learned more about what Stanford is about and got to hang out with a bunch of recruits in my class, I knew that's where I wanted to be."
Oser was one of two commits for Stanford over the weekend, Concord (Calif.) De La Salle tight end/defensive end Austin Hooper also pledging to the Cardinal.
And the two were teammates in the Semper Fidelis All-American Bowl and first started discussing the possibility of playing together in college.
"Austin and I talked a lot at the Semper Fi game," said Oser. "That was the first time we'd met and when I found out he was looking at Stanford, we just started talking more about it and then we saw each other again this weekend and both committed."
Oser said his visit to The Farm was one of the best experiences he's had.
"The visit was awesome and everything about Stanford is great," said Oser. "Graham Shuler was my host and he's a really cool guy and we were hanging with Dave Bright and his host Kyle Murphy and just a bunch of the offensive linemen. They brought in a bunch of linemen last year and they're all a bunch of really good guys."
Oser got to spend time with the offensive line co-coaches Ron Crook and Mike Bloomgren.
"Coach Crook is good friends with my head coach and Coach Bloomgren is the coach I'll be working with the most," said Oser. "Coach Bloomgren made it a point to say that they want me to snap for them and I think I have a chance to go in and compete for a spot early."
Oser said watching what the Cardinal did this year, winning the Pac-12 and the Rose Bowl, showed him the program is built for the long-haul.
"People said they would fall apart when Jim Harbaugh left, and that didn't happen, and then they said that it would when Andrew Luck left, and that didn't happen," said Oser. "It's a program that is continuously rising and improving and that is something to commend. In the next couple of years, it's only going to get better and it's not going to end any time soon. Just talking with a bunch of the other guys, this is just the start and I'm excited to be a part of that. And hopefully I'll be winning my own Rose Bowl."
Oser comes from a Harvard-Westlake program that produced former Stanford All-American tackle Jonathan Martin, who's now in the NFL, a player that was a key part of their rise the last few years.
"Jonathan is someone I definitely look up to and I see him at school working out, and I just want to have the same success he had but carve out my own career," said Oser.
Oser said he won't be taking his previously scheduled visit to Vanderbilt, calling the coaches this weekend to let them know of his decision.
Now, Oser said, he can focus on finishing up his senior year.
"I'm very relieved because it's been a very stressful process," said Oser. "It's the biggest decision I've made in my life so far and I'm excited. Now I can focus more on working out and keeping my grades up and I don't have to worry about the questions anymore."
And Oser is thrilled to be going to school in-state.
"It's a perfect distance from home," said Oser. "It's about a 4-5 hour drive and I think it's a great spot. My family can come out and it's an easy time too. It's close enough home but far enough."