GM: Sandy Alderson (since 1983)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Rickey Henderson | 35 | FA-elig | 87 | 2.8 | 4.8 | -1.5 |
| Terry Steinbach | 32 | FA-elig | 103 | 2.7 | 2.8 | +0.3 |
| Geronimo Berroa | 29 | arb | 96 | 2.3 | 0.1 | +2.6 |
| Ron Darling | 33 | FA-elig | 27 | 2.3 | 2.2 | +0.4 |
| Steve Ontiveros | 33 | FA-elig | 27 | 2.3 | 0.2 | +2.4 |
| Stan Javier | 30 | FA-elig | 109 | 2.2 | 0.7 | +1.9 |
| Troy Neel | 28 | pre-arb | 83 | 1.2 | 0.2 | +1.2 |
| Mark McGwire | 30 | FA-elig | 47 | 1.2 | 3.0 | -1.6 |
| Dennis Eckersley | 39 | FA-elig | 45 | 0.9 | 3.8 | -2.7 |
| Bobby Witt | 30 | FA-elig | 25 | 0.9 | 3.2 | -2.3 |
| Mike Bordick | 28 | arb | 114 | 0.8 | 1.1 | -0.1 |
| Steve Karsay | 22 | pre-arb | 4 | 0.7 | 0.1 | +0.7 |
| Scott Brosius | 27 | arb | 96 | 0.7 | 0.2 | +0.7 |
| Billy Taylor | 32 | pre-arb | 41 | 0.7 | 0.1 | +0.7 |
| Dave Leiper | 32 | FA-elig | 26 | 0.5 | 0.1 | +0.4 |
| Carlos Reyes | 25 | pre-arb | 27 | 0.4 | 0.1 | +0.3 |
| Brent Gates | 24 | pre-arb | 64 | 0.3 | 0.2 | +0.2 |
| Vince Horsman | 27 | – | 33 | 0.3 | – | – |
| Eric Fox | 30 | – | 26 | 0.1 | – | – |
| Ed Vosberg | 32 | FA-elig | 16 | 0.1 | 0.1 | -0.0 |
| Steve Phoenix | 26 | – | 2 | 0.1 | – | – |
| Ed Nunez | 31 | FA-elig | 15 | 0.0 | 0.4 | -0.4 |
| Mike Aldrete | 33 | FA-elig | 76 | -0.0 | 0.4 | -0.4 |
| Roger Smithberg | 28 | – | 2 | -0.0 | – | – |
| Mike Mohler | 25 | pre-arb | 1 | -0.0 | 0.1 | -0.2 |
| Scott Hemond | 28 | arb | 91 | -0.1 | 0.2 | -0.3 |
| Eric Helfand | 25 | pre-arb | 7 | -0.1 | 0.1 | -0.2 |
| Steve Sax | 34 | FA-elig | 7 | -0.1 | 0.1 | -0.2 |
| Ernie Young | 24 | – | 11 | -0.1 | – | – |
| Jim Bowie | 29 | – | 6 | -0.1 | – | – |
| Bob Welch | 37 | FA-elig | 26 | -0.2 | 3.5 | -3.6 |
| Mark Acre | 25 | pre-arb | 34 | -0.2 | 0.1 | -0.4 |
| Jeff Schaefer | 34 | – | 6 | -0.2 | – | – |
| Junior Noboa↔ PIT | 29 | FA-elig | 17 | -0.2 | 0.1 | -0.4 |
| Craig Paquette | 25 | pre-arb | 14 | -0.3 | 0.1 | -0.5 |
| Francisco Matos | 24 | – | 14 | -0.3 | – | – |
| Dave Righetti↔ TOR | 35 | FA-elig | 7 | -0.4 | 0.0 | -0.5 |
| John Briscoe | 26 | arb | 37 | -0.4 | 0.1 | -0.6 |
| Mike Brumley | 31 | – | 11 | -0.4 | – | – |
| Todd Van Poppel | 22 | arb | 23 | -0.4 | 0.4 | -0.9 |
| Fausto Cruz | 22 | – | 17 | -0.5 | – | – |
| Ruben Sierra | 28 | FA-elig | 110 | -0.5 | 4.7 | -5.3 |
| Miguel Jimenez | 24 | – | 8 | -0.6 | – | – |
43 players appeared (WAR is complete); salary & surplus are on record for 32 of them (74%). 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 |