GM: Sandy Alderson (since 1983)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Mark McGwire | 28 | FA-elig | 139 | 6.3 | 2.7 | +2.3 |
| Rickey Henderson | 33 | FA-elig | 117 | 5.6 | 3.2 | +1.1 |
| Terry Steinbach | 30 | FA-elig | 128 | 4.0 | 2.0 | +1.1 |
| Mike Bordick | 26 | pre-arb | 154 | 3.8 | 0.2 | +2.7 |
| Lance Blankenship | 28 | arb | 123 | 3.3 | 0.2 | +2.4 |
| Dennis Eckersley | 37 | FA-elig | 69 | 3.1 | 3.1 | -0.8 |
| Ron Darling | 31 | FA-elig | 34 | 2.5 | 2.2 | -0.3 |
| Jerry Browne | 26 | – | 111 | 2.1 | – | – |
| Jose Canseco↔ TEX | 27 | FA-elig | 97 | 1.9 | 3.5 | -2.0 |
| Carney Lansford | 35 | FA-elig | 135 | 1.9 | 1.1 | +0.3 |
| Willie Wilson | 36 | FA-elig | 132 | 1.9 | 1.1 | +0.4 |
| Mike Moore | 32 | FA-elig | 36 | 1.4 | 3.5 | -2.4 |
| Dave Stewart | 35 | FA-elig | 31 | 1.2 | 3.2 | -2.3 |
| Jeff Parrett | 30 | FA-elig | 66 | 0.8 | 0.4 | +0.2 |
| Ruben Sierra↔ TEX | 26 | FA-elig | 27 | 0.8 | 0.9 | -0.3 |
| Rick Honeycutt | 38 | FA-elig | 54 | 0.8 | 1.4 | -0.8 |
| Bob Welch | 35 | FA-elig | 20 | 0.6 | 3.5 | -3.0 |
| Harold Baines | 33 | FA-elig | 140 | 0.5 | 1.6 | -1.2 |
| Kelly Downs↔ SFG | 31 | FA-elig | 18 | 0.4 | 0.5 | -0.1 |
| Bobby Witt↔ TEX | 28 | FA-elig | 6 | 0.4 | 0.5 | -0.1 |
| Jeff Russell↔ TEX | 30 | FA-elig | 8 | 0.2 | 0.4 | -0.2 |
| Henry Mercedes | 22 | – | 9 | 0.2 | – | – |
| Jim Corsi | 30 | arb | 32 | 0.2 | 0.1 | -0.0 |
| Randy Ready | 32 | FA-elig | 61 | 0.1 | 0.5 | -0.4 |
| Troy Neel | 26 | – | 24 | 0.1 | – | – |
| Eric Fox | 28 | – | 51 | 0.1 | – | – |
| Scott Brosius | 25 | pre-arb | 38 | 0.1 | 0.1 | -0.1 |
| Bruce Walton | 29 | pre-arb | 7 | 0.0 | 0.1 | -0.1 |
| Todd Revenig | 23 | – | 2 | 0.0 | – | – |
| Johnny Guzman | 21 | pre-arb | 2 | 0.0 | 0.1 | -0.1 |
| Mike Raczka | 29 | – | 8 | -0.0 | – | – |
| Jamie Quirk | 37 | FA-elig | 78 | -0.0 | 0.5 | -0.6 |
| John Briscoe | 24 | – | 2 | -0.0 | – | – |
| Dann Howitt↔ SEA | 28 | – | 22 | -0.1 | – | – |
| Shawn Hillegas↔ NYY | 27 | – | 5 | -0.1 | – | – |
| Scott Hemond↔ CHW | 26 | arb | 17 | -0.1 | 0.1 | -0.1 |
| Kevin Campbell | 27 | pre-arb | 32 | -0.1 | 0.1 | -0.2 |
| Gene Nelson | 31 | FA-elig | 29 | -0.1 | 1.2 | -1.3 |
| Vince Horsman | 25 | pre-arb | 58 | -0.1 | 0.1 | -0.2 |
| Rich Gossage | 40 | FA-elig | 30 | -0.3 | 0.3 | -0.5 |
| Mike Kingery | 31 | – | 12 | -0.4 | – | – |
| Joe Slusarski | 25 | pre-arb | 15 | -0.6 | 0.1 | -0.6 |
| Walt Weiss | 28 | arb | 103 | -0.8 | 0.8 | -1.4 |
| Dave Henderson | 33 | FA-elig | 20 | -0.8 | 2.6 | -3.2 |
44 players appeared (WAR is complete); salary & surplus are on record for 34 of them (77%). Players without a salary show "–" — no single historical salary source is fully complete (especially 2020–2022).
WAR = FanGraphs (fWAR). Green = produced more value than paid (bargain); red = paid more than produced. Service: pre-arb (<3 yr) / arb (3–6) / FA-eligible (6+). Click headers to sort.
| Player | Year | WAR for OAK |
|---|---|---|
| Rickey Henderson | 1989 | 26.8 |
| Mark Ellis | 2001 | 22.1 |
| Dennis Eckersley | 1987 | 19.3 |
| Carney Lansford | 1982 | 16.7 |
| Josh Donaldson | 2008 | 13.8 |
| Jed Lowrie | 2013 | 13.0 |
| Brett Anderson | 2007 | 11.5 |
| Sean Manaea | 2015 | 11.2 |
| Player | Year traded | WAR elsewhere |
|---|---|---|
| Rickey Henderson | 1984 | 26.6 |
| Carlos González | 2008 | 24.7 |
| Andre Ethier | 2005 | 24.4 |
| Gio Gonzalez | 2011 | 20.8 |
| Josh Donaldson | 2014 | 20.4 |
| Mark McGwire | 1997 | 19.7 |
| Aaron Harang | 2003 | 19.3 |
| Jeremy Bonderman | 2002 | 15.8 |