GM: Sandy Alderson (since 1983)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Jose Canseco | 26 | FA-elig | 154 | 5.3 | 3.5 | -0.4 |
| Dave Henderson | 32 | FA-elig | 150 | 4.9 | 2.5 | +0.4 |
| Rickey Henderson | 32 | FA-elig | 134 | 3.8 | 3.2 | -1.0 |
| Mike Gallego | 30 | FA-elig | 159 | 3.4 | 0.6 | +1.5 |
| Mike Moore | 31 | FA-elig | 33 | 3.4 | 1.6 | +0.4 |
| Harold Baines | 32 | FA-elig | 141 | 2.5 | 1.4 | +0.1 |
| Dennis Eckersley | 36 | FA-elig | 67 | 1.7 | 3.0 | -2.0 |
| Terry Steinbach | 29 | arb | 129 | 1.6 | 1.1 | -0.1 |
| Dave Stewart | 34 | FA-elig | 35 | 1.5 | 3.2 | -2.3 |
| Mark McGwire | 27 | arb | 154 | 1.4 | 2.9 | -2.0 |
| Lance Blankenship | 27 | arb | 90 | 1.2 | 0.1 | +0.6 |
| Willie Wilson | 35 | FA-elig | 113 | 0.9 | 1.0 | -0.5 |
| Ron Darling↔ NYM | 30 | FA-elig | 12 | 0.8 | 0.7 | -0.2 |
| Andy Hawkins↔ NYY | 31 | FA-elig | 15 | 0.7 | 1.2 | -0.8 |
| Bob Welch | 34 | FA-elig | 35 | 0.6 | 3.5 | -3.1 |
| Jamie Quirk | 36 | FA-elig | 76 | 0.4 | 0.5 | -0.2 |
| Ernest Riles | 30 | FA-elig | 108 | 0.4 | 0.8 | -0.6 |
| Joe Klink | 29 | arb | 62 | 0.3 | 0.1 | +0.0 |
| Walt Weiss | 27 | arb | 40 | 0.2 | 0.8 | -0.7 |
| Mike Bordick | 25 | – | 90 | 0.2 | – | – |
| Eric Show | 35 | FA-elig | 23 | 0.1 | 0.8 | -0.7 |
| Joe Slusarski | 24 | – | 20 | 0.1 | – | – |
| Dana Allison | 24 | – | 11 | 0.1 | – | – |
| Johnny Guzman | 20 | – | 5 | 0.1 | – | – |
| Todd Van Poppel | 19 | – | 1 | 0.0 | – | – |
| Vance Law | 34 | FA-elig | 74 | -0.0 | 0.5 | -0.5 |
| Reggie Harris | 22 | – | 2 | -0.0 | – | – |
| Scott Brosius | 24 | – | 36 | -0.0 | – | – |
| Rick Honeycutt | 37 | FA-elig | 43 | -0.0 | 1.4 | -1.4 |
| Fred Manrique | 29 | – | 9 | -0.0 | – | – |
| Scott Hemond | 25 | – | 23 | -0.1 | – | – |
| Dann Howitt | 27 | – | 21 | -0.1 | – | – |
| Troy Afenir | 27 | – | 5 | -0.2 | – | – |
| Kirk Dressendorfer | 22 | – | 7 | -0.2 | – | – |
| Bruce Walton | 28 | – | 12 | -0.2 | – | – |
| Doug Jennings | 26 | – | 8 | -0.2 | – | – |
| John Briscoe | 23 | – | 11 | -0.2 | – | – |
| Brad Komminsk | 30 | – | 24 | -0.2 | – | – |
| Todd Burns | 27 | arb | 9 | -0.3 | 0.3 | -0.5 |
| Carney Lansford | 34 | FA-elig | 5 | -0.3 | 1.3 | -1.5 |
| Ron Witmeyer | 24 | – | 11 | -0.4 | – | – |
| Kevin Campbell | 26 | – | 14 | -0.5 | – | – |
| Steve Chitren | 24 | pre-arb | 56 | -0.5 | 0.1 | -0.4 |
| Brook Jacoby↔ CLE | 31 | FA-elig | 56 | -0.5 | 0.5 | -0.8 |
| Curt Young | 31 | FA-elig | 41 | -0.7 | 0.8 | -1.2 |
| Gene Nelson | 30 | FA-elig | 44 | -1.6 | 1.1 | -2.0 |
46 players appeared (WAR is complete); salary & surplus are on record for 28 of them (61%). 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 |