The moves were announced Monday night.
Kottaras, acquired from Kansas City last week, is due $1,075,000. Murphy will earn $825,000.
Besides Samardzija and Wood, the Cubs also offered contracts to five other arbitration-eligible players: pitchers Pedro Strop and James Russell, infielders Darwin Barney and Luis Valbuena and outfielder Nate Schierholtz.
Pitchers Chang-Yong Lim and Daniel Bard and infielder Mat Gamel were not offered contracts. Lim was not eligible for arbitration.
Chicago's 40-man roster now stands at 37 players.
- Sports & Recreation
- Jeff Samardzija
- Chicago Cubs
- Travis Wood
- George Kottaras