GM: Sandy Alderson (since 1983)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Rickey Henderson↔ NYY | 30 | FA-elig | 85 | 5.2 | 1.2 | +0.7 |
| Carney Lansford | 32 | FA-elig | 148 | 4.4 | 1.4 | +0.2 |
| Mike Moore | 29 | FA-elig | 35 | 4.4 | 1.3 | +0.3 |
| Mark McGwire | 25 | arb | 143 | 4.3 | 0.5 | +1.0 |
| Dave Henderson | 30 | FA-elig | 152 | 4.2 | 0.8 | +0.6 |
| Dave Stewart | 32 | FA-elig | 36 | 3.2 | 1.2 | -0.0 |
| Bob Welch | 32 | FA-elig | 33 | 3.0 | 1.2 | -0.1 |
| Tony Phillips | 30 | FA-elig | 143 | 2.2 | 0.5 | +0.3 |
| Jose Canseco | 24 | arb | 65 | 2.1 | 1.6 | -0.8 |
| Mike Gallego | 28 | arb | 133 | 1.7 | 0.2 | +0.4 |
| Dennis Eckersley | 34 | FA-elig | 51 | 1.7 | 1.1 | -0.5 |
| Todd Burns | 25 | pre-arb | 50 | 1.3 | 0.1 | +0.4 |
| Dave Parker | 38 | FA-elig | 144 | 1.0 | 1.1 | -0.8 |
| Gene Nelson | 28 | FA-elig | 51 | 1.0 | 0.6 | -0.3 |
| Luis Polonia↔ NYY | 25 | pre-arb | 59 | 0.8 | 0.1 | +0.2 |
| Terry Steinbach | 27 | arb | 130 | 0.7 | 0.3 | -0.1 |
| Ron Hassey | 36 | FA-elig | 97 | 0.7 | 0.6 | -0.3 |
| Rick Honeycutt | 35 | FA-elig | 64 | 0.6 | 0.7 | -0.4 |
| Storm Davis | 27 | FA-elig | 31 | 0.5 | 0.6 | -0.4 |
| Stan Javier | 25 | arb | 112 | 0.5 | 0.2 | -0.0 |
| Curt Young | 29 | FA-elig | 25 | 0.4 | 0.6 | -0.4 |
| Eric Plunk↔ NYY | 25 | arb | 23 | 0.3 | 0.1 | +0.0 |
| Walt Weiss | 25 | pre-arb | 84 | 0.3 | 0.2 | -0.1 |
| Jim Corsi | 27 | – | 22 | 0.3 | – | – |
| Dave Otto | 24 | – | 1 | 0.2 | – | – |
| Glenn Hubbard | 31 | FA-elig | 53 | 0.1 | 0.4 | -0.3 |
| Lance Blankenship | 25 | pre-arb | 58 | 0.1 | 0.1 | -0.0 |
| Bill Dawley | 31 | FA-elig | 4 | 0.0 | 0.1 | -0.1 |
| Chris Bando | 33 | – | 1 | 0.0 | – | – |
| Ken Phelps↔ NYY | 34 | FA-elig | 11 | 0.0 | 0.1 | -0.1 |
| Jamie Quirk↔ BAL | 34 | FA-elig | 9 | 0.0 | 0.0 | -0.0 |
| Scott Hemond | 23 | – | 4 | 0.0 | – | – |
| Greg Cadaret↔ NYY | 27 | pre-arb | 26 | -0.0 | 0.1 | -0.1 |
| Dann Howitt | 25 | – | 3 | -0.1 | – | – |
| Doug Jennings | 24 | – | 4 | -0.1 | – | – |
| Matt Young | 30 | FA-elig | 26 | -0.1 | 0.4 | -0.5 |
| Dick Scott | 26 | – | 3 | -0.1 | – | – |
| Felix Jose | 24 | – | 20 | -0.1 | – | – |
| Larry Arndt | 26 | – | 2 | -0.2 | – | – |
| Brian Snyder | 31 | – | 2 | -0.3 | – | – |
| Billy Beane | 27 | arb | 37 | -0.4 | 0.1 | -0.2 |
41 players appeared (WAR is complete); salary & surplus are on record for 31 of them (76%). 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 |