Barnes' agent, Kenneth Zuckerman, said Wednesday the sides had reached a deal worth up to $2 million to keep Barnes in Oakland for a fourth season. The deal comes the same day the Raiders lost starting center Samson Satele to Indianapolis in free agency.
After spending most of his first two years with the Raiders as a reserve, Barnes started all 16 games at right tackle last year.
Lee's agent, Todd France, says his client also has a deal to leave Green Bay and join the Raiders. Lee was mostly a reserve with the Packers after being drafted in the second round out of Auburn in 2008.