Michael Wuertz's stellar relief work last season didn't create much buzz, but it didn't go unnoticed by the A's brass.

The team rewarded the right-handed setup man Friday with a two-year, $5.25 million contract that includes a $3.5 million club option for 2012. Wuertz, 31, was the A's last unsigned arbitration-eligible player.

"I'm relieved to have a little bit of security here," Wuertz said in a phone interview.

"It's just a big thing for me and my family. We really enjoyed Oakland last year, and I'm ready to be part of something special, with some of the new guys we brought in."

Wuertz, acquired from the Chicago Cubs last February, was asking for $2.9 million in arbitration, while the club offered $1.9 million.

A source confirmed he'll get $2.2 million in 2010 and $2.8 million in 2011, with a $250,000 buyout if his option isn't exercised.

Wuertz went 6-1 with a 2.63 ERA last season in a team-high 74 appearances. His 102 strikeouts led AL relievers.

That was enough for the A's to extend a multiyear offer, though they typically stick to one-year deals for arbitration-eligible players.