OAKLAND — The Raiders may be weighing possible moves, but it appears they’ll be stuck in Oakland for the immediate future, and it’s going to get a lot more expensive for the home team next season.

The team will pay $3.5 million to use O.co Coliseum and its publicly owned training facility in Alameda — more than three times what it paid this year — under the terms of a proposed one-year lease extension that keeps them in Oakland next season.

Last year, the team paid $925,000 in rent for the two facilities. While rent remains the same for the Alameda training facility at $525,000, rent for the stadium is going up from $400,000 last season to just under $3 million this coming season, according to the lease extension.

The authority that operates O.co Coliseum will vote on the agreement Friday at its 9 a.m. meeting, then it heads to the Alameda County Board of Supervisors and Oakland City Council for their approval.

“I am assuming that this will pass, and after it passes I will certainly talk to the media,” Scott McKibben, executive director of the Oakland-Alameda County Coliseum Authority, said Wednesday.

The agreement also includes options for the franchise to play the 2017 and 2018 seasons in Oakland under the same annual rent.

Authority officials and Raiders owner Mark Davis in announcing the lease extension in February did not release the terms of the agreement, but city and county officials who sit on the coliseum authority called it a fair deal for taxpayers and the team.

“I think it works for the city and the county,” Scott Haggerty, Board of Supervisors president and a member of the authority, said last month. “I don’t think this gives us a sense of relaxation. What we have before us is urgency to continue to move forward and get this done,” referring to a new stadium deal for the team in Oakland.

Reached Wednesday, Davis declined to discuss specifics about the new terms but said that “despite the increase in costs, we will not be passing that onto the fans this season,” meaning season ticket prices are not increasing.

Meanwhile, NFL Commissioner Roger Goodell on Wednesday did not rule out Las Vegas as a possible home for a team when asked about Davis’ interest in moving the Raiders there. Because of the NFL’s stance against gambling, the prospect of doing any sort of business in there had been taboo in the league for decades.

While Goodell denied there has been a philosophical shift on the subject, he didn’t completely reject the idea of the Raiders winding up in Nevada.

“I think their ultimate decision is a long ways off,” Goodell said. “There are several cities that have a tremendous interest in the Raiders. I’m hopeful, also, that Oakland will be one of those and that we can avoid any relocation to start with. … But until we’ve got a hard proposal that really puts that in front of us, we’d have to understand what the ramifications of that are.”

After losing out in January on a bid to move to Los Angeles, Davis has said that he’s committed to Oakland but that it makes good business sense to keep his options open. The Raiders have the option to join the Rams in Los Angeles but only if the Chargers decide to stay in San Diego.

Davis said he met with Nevada Gov. Brian Sandoval earlier this month about moving his franchise to Las Vegas. Davis called it a “great city with great potential.”

“We talked about making the Silver State the Silver and Black State,” Davis said.

The Associated Press contributed to this report. David DeBolt covers Oakland. Contact him at 510-208-6453. Follow him at Twitter.com/daviddebolt.