GM: Billy Beane (since 1998)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Daric Barton | 24 | arb | 159 | 5.0 | 0.4 | +11.1 |
| Cliff Pennington | 26 | pre-arb | 156 | 3.6 | 0.4 | +7.8 |
| Dallas Braden | 26 | arb | 30 | 3.4 | 0.4 | +7.5 |
| Coco Crisp | 30 | FA-elig | 75 | 3.1 | 5.0 | +2.2 |
| Gio Gonzalez | 24 | pre-arb | 33 | 3.1 | 0.4 | +6.8 |
| Mark Ellis | 33 | FA-elig | 124 | 3.1 | 5.5 | +1.7 |
| Brett Anderson | 22 | pre-arb | 19 | 2.5 | 0.4 | +5.4 |
| Kevin Kouzmanoff | 28 | arb | 143 | 2.5 | 3.1 | +2.7 |
| Jack Cust | 31 | FA-elig | 112 | 2.2 | 2.6 | +2.5 |
| Trevor Cahill | 22 | pre-arb | 30 | 1.9 | 0.4 | +4.0 |
| Adam Rosales | 27 | pre-arb | 80 | 1.6 | 0.4 | +3.4 |
| Kurt Suzuki | 26 | arb | 131 | 1.2 | 0.4 | +2.3 |
| Rajai Davis | 29 | arb | 143 | 1.1 | 1.4 | +1.2 |
| Andrew Bailey | 26 | pre-arb | 47 | 1.0 | 0.4 | +2.0 |
| Ryan Sweeney | 25 | arb | 82 | 0.8 | 0.4 | +1.5 |
| Ben Sheets | 31 | FA-elig | 20 | 0.8 | 10.0 | -8.2 |
| Craig Breslow | 29 | arb | 75 | 0.5 | 0.4 | +0.7 |
| Conor Jackson↔ ARI | 28 | arb | 18 | 0.5 | 0.9 | +0.1 |
| Henry Alberto Rodriguez | 23 | – | 29 | 0.3 | – | – |
| Boof Bonser↔ BOS | 28 | arb | 13 | 0.2 | 0.6 | -0.1 |
| Justin Duchscherer | 32 | FA-elig | 5 | 0.2 | 1.8 | -1.4 |
| Steve Tolleson | 26 | – | 25 | 0.1 | – | – |
| Clayton Mortensen | 25 | – | 1 | 0.1 | – | – |
| Brad Ziegler | 30 | pre-arb | 64 | 0.1 | 0.4 | -0.2 |
| Jerry Blevins | 26 | arb | 63 | 0.1 | 0.4 | -0.2 |
| Brad Kilby | 27 | – | 5 | 0.0 | – | – |
| Eric Sogard | 24 | – | 4 | 0.0 | – | – |
| Tyson Ross | 23 | pre-arb | 26 | 0.0 | 0.4 | -0.3 |
| Justin James | 28 | – | 5 | -0.0 | – | – |
| Jeremy Hermida↔ BOS | 26 | arb | 21 | -0.0 | 1.0 | -1.0 |
| Ross Wolf | 27 | – | 11 | -0.0 | – | – |
| Vin Mazzaro | 23 | – | 24 | -0.0 | – | – |
| Edwar Ramirez | 29 | arb | 7 | -0.1 | 0.4 | -0.6 |
| Michael Wuertz | 31 | FA-elig | 48 | -0.1 | 2.2 | -2.4 |
| Matt Watson | 31 | – | 12 | -0.1 | – | – |
| Bobby Cramer | 30 | – | 4 | -0.1 | – | – |
| Eric Patterson↔ BOS | 27 | arb | 45 | -0.1 | 0.2 | -0.4 |
| Landon Powell | 28 | – | 41 | -0.1 | – | – |
| Cedrick Bowers | 32 | – | 14 | -0.2 | – | – |
| Matt Carson | 28 | – | 36 | -0.2 | – | – |
| Chad Gaudin↔ NYY | 27 | FA-elig | 12 | -0.3 | 0.2 | -0.9 |
| Josh Donaldson | 24 | – | 14 | -0.3 | – | – |
| Jeff Larish↔ DET | 27 | – | 24 | -0.4 | – | – |
| Travis Buck | 26 | arb | 14 | -0.4 | 0.4 | -1.4 |
| Gabe Gross | 30 | FA-elig | 105 | -0.5 | 0.8 | -2.0 |
| Akinori Iwamura↔ PIT | 31 | arb | 10 | -0.5 | 0.8 | -2.0 |
| Jake Fox↔ BAL | 27 | arb | 39 | -0.5 | 0.2 | -1.4 |
| Eric Chavez | 32 | FA-elig | 33 | -0.7 | 12.5 | -14.1 |
| Chris Carter | 23 | – | 24 | -0.8 | – | – |
49 players appeared (WAR is complete); salary & surplus are on record for 33 of them (67%). 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 |