Alameda County, trying to offload its share of the Oakland Coliseum and the Oakland Arena, offered to sell its portion of the debt to the city for nearly $78 million — as long as the city paid up front, documents obtained by The Chronicle show.

Oakland administrators apparently ignored the offer, which the county dangled in February and which has never been made public.

But the snub prompted Alameda County officials to turn to the Oakland A’s, who in April were given a higher price — $85 million — but told they could pay it over seven years. County officials say a final deal with the A’s would include a condition that the A’s would have to stay in Oakland.

Now some city officials say Oakland should be given the chance to buy out the county under at least the same terms as the ball team.

“The A’s were able to spread their terms out … whereas the county wanted us to pay it all up front,” said Councilman Loren Taylor, who serves on the Alameda County Coliseum Authority. “From my perspective, we still need to have a conversation about the same terms that the A’s were given. It was never presented to us.”

Alameda County Supervisor Nate Miley said Monday that the county is open to offering the same payment terms to the city as to the A’s — but he said the city’s lack of “consistent response” has halted negotiations.

The city and county are paying off a $220 million debt incurred during the stadium renovation of 1995 that brought the Raiders back from Los Angeles. County officials have said that they have been trying to get out of the sports business and had been in discussions with the city since 2015 to sell the county share — to no avail.

The $78 million offer to the city, obtained by The Chronicle, shows that on Feb. 25, county officials proposed that Oakland buy out its stadium debt for $42,272,625, and its debt for the former Oracle Arena for $35,509,219.

Once purchased, “the county’s ownership interest in the Coliseum Site shall transfer to and fully vest in the City upon payment,” says the offer.

The county submitted its February offer to city administrative staff, which in turn, gave the City Council only a summary and analysis of the offer.

Last month, Oakland City Council members asked the county for a copy of the entire offer, and on Sept. 24, Alameda County Board of Supervisors President Richard Valle sent one to the council, as well as the county’s offer to the A’s.

Three days later, the city sued the county — at the direction of the City Council — to block it from selling its ownership to the A’s.

On Oct. 1, a judge granted a temporary restraining order that prevents the sale of the county’s share but allows all parties to negotiate. The next court hearing on the lawsuit is scheduled for Nov. 14.

Alameda County officials have said the county is open to offers from the city — similar to offers they received from the A’s — but the city hasn’t come to the table with a proposal. On Monday, Miley said it’s unlikely the county will negotiate with the city until it drops its lawsuit.

“As long as the lawsuit is out there, the county is not going to want to have any formal conversations with the city,” Miley said.

The county’s offer to the A’s says the county would continue to pay down its debt and pay operating costs. The A’s would then reimburse the county for the costs. In addition, Miley said, final terms would mean the A’s had to stay in Oakland.

The City Council recently voted unanimously to direct city staff to resume negotiations with the county about the future of the Coliseum.

City Council President Rebecca Kaplan, who pushed for the lawsuit, said last week that if conversations with the county go well, litigation may no longer be necessary.

“I personally believe there are much better alternatives to litigation,” Kaplan told The Chronicle. “The county and the city should have a united strategy for next steps on our shared property — and then there would be no reason those issues would need to be resolved in court.”

But county officials have already canceled their first post-lawsuit meeting with the city.

Two separate closed session meetings are scheduled Tuesday — one for Oakland City Council and one for the Alameda County Board of Supervisors — to discuss the negotiations over the Coliseum.

Sarah Ravani is a San Francisco Chronicle staff writer. Email: sravani@sfchronicle.com Twitter: @SarRavani