"We are pleased to renew our relationship with the Ports through the 2016 season," said A's general manager Billy Beane in a statement. "We are so appreciative the way the Stockton community has embraced our Single-A team. We look forward to continuing this relationship for many years to come."
It's been seven years since the A's began their affiliation with the Ports, the same year Stockton christened its new Banner Island Ballpark -- which seats 5,200 -- in the downtown area.
The Ports set attendance records in three of their first five seasons and averaged more than 200,000 fans per year, while qualifying for the playoffs in five of the first seven years.
Stockton is currently the home of 2012 first-round Draft pick Addison Russell, who is batting .276 with 15 home runs and 55 RBIs in 96 games for the Ports.
Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.