Mike Riley has agreed to a three-year contract extension with Oregon State, which would seemingly end his rumored candidacy to replace Pete Carroll at USC.

The extension runs through the 2019 season. Terms, a school spokesman said, will be disclosed later.

At the American Football Coaches Association convention in Orlando, Fla., Riley told The Associated Press on Monday he was never contacted by USC and had no intentions of leaving Corvallis.

"I'm very pleased to say I'm going to be at Oregon State for a long time," he said. "That's about as long as I'm going to coach probably. I wanted to get it out there that I was going to stay, regardless of whatever happened [at USC]. I know that there were a ton of rumors out there and I thought that it was best to just get it all behind me."

Shortly after ESPN's Chris Mortensen reported Friday that Carroll was expected to become the next coach of the Seattle Seahawks, Riley immediately jumped to the top of the list of potential candidates. USC athletic director Mike Garrett tried to hire Riley in 2000 before settling on Carroll. At the time, Riley was the head coach of the San Diego Chargers.

Riley, 56, a former USC assistant coach, has been lauded for the transformation he led for the formerly woebegone Beavers. The 2008 Pac-10 Coach of the Year, he owns a 64-47 record in nine years in Corvallis, and the Beavers have won five of six bowl games during his tenure.

"Coach Riley has done an outstanding job in leading this program to unparalleled success," athletic director Bob De Carolis said in a statement. "This new extension ensures his leadership will be felt for the long term and adds tremendous stability to our program."

Ted Miller covers Pac-10 football for ESPN.com. Information from The Associated Press was used in this report.