GM: Sandy Alderson (since 1983)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Mark McGwire | 23 | pre-arb | 151 | 5.1 | 0.1 | +1.4 |
| Dave Stewart | 30 | FA-elig | 37 | 4.8 | 0.6 | +0.8 |
| Carney Lansford | 30 | FA-elig | 151 | 4.7 | 1.3 | +0.1 |
| Dennis Eckersley | 32 | FA-elig | 54 | 3.4 | 0.8 | +0.2 |
| Terry Steinbach | 25 | pre-arb | 122 | 3.2 | 0.1 | +0.9 |
| Jose Canseco | 22 | pre-arb | 159 | 1.9 | 0.2 | +0.4 |
| Tony Phillips | 28 | arb | 111 | 1.8 | 0.4 | +0.1 |
| Gene Nelson | 26 | FA-elig | 54 | 1.8 | 0.4 | +0.2 |
| Steve Ontiveros | 26 | pre-arb | 35 | 1.7 | 0.1 | +0.3 |
| Curt Young | 27 | arb | 31 | 1.5 | 0.2 | +0.3 |
| Dwayne Murphy | 32 | FA-elig | 82 | 1.4 | 0.8 | -0.4 |
| Mike Davis | 28 | FA-elig | 139 | 1.3 | 0.8 | -0.4 |
| Alfredo Griffin | 29 | FA-elig | 144 | 1.1 | 0.6 | -0.3 |
| Luis Polonia | 23 | pre-arb | 125 | 1.1 | 0.1 | +0.2 |
| Eric Plunk | 23 | pre-arb | 32 | 1.1 | 0.1 | +0.2 |
| Jose Rijo | 22 | – | 21 | 0.8 | – | – |
| Storm Davis↔ SDP | 25 | arb | 5 | 0.7 | 0.1 | +0.1 |
| Walt Weiss | 23 | – | 16 | 0.6 | – | – |
| Dennis Lamp | 34 | – | 36 | 0.5 | – | – |
| Mike Gallego | 26 | – | 72 | 0.5 | – | – |
| Dave Leiper↔ SDP | 25 | arb | 45 | 0.3 | 0.1 | +0.0 |
| Gary Lavelle↔ TOR | 38 | FA-elig | 6 | 0.2 | 0.0 | +0.0 |
| Moose Haas | 31 | FA-elig | 9 | 0.1 | 0.6 | -0.5 |
| Tony Bernazard↔ CLE | 30 | FA-elig | 61 | 0.1 | 0.3 | -0.2 |
| Mickey Tettleton | 26 | arb | 82 | 0.1 | 0.1 | -0.1 |
| Rick Honeycutt↔ LAD | 33 | FA-elig | 7 | 0.1 | 0.2 | -0.1 |
| Ron Cey | 39 | FA-elig | 45 | 0.0 | 1.1 | -1.0 |
| Jay Howell | 31 | FA-elig | 36 | 0.0 | 0.5 | -0.5 |
| Dave Vonohlen | 28 | – | 4 | -0.0 | – | – |
| Dave Otto | 22 | – | 3 | -0.0 | – | – |
| Chris Codiroli | 29 | – | 3 | -0.0 | – | – |
| Jerry Willard | 27 | – | 7 | -0.0 | – | – |
| Rick Rodriguez | 26 | – | 15 | -0.0 | – | – |
| Steve Henderson | 34 | FA-elig | 46 | -0.1 | 0.1 | -0.1 |
| Matt Sinatro | 27 | – | 6 | -0.1 | – | – |
| Joaquin Andujar | 34 | FA-elig | 13 | -0.1 | 1.4 | -1.4 |
| Alejandro Sanchez | 28 | – | 2 | -0.1 | – | – |
| Bill Caudill | 30 | FA-elig | 6 | -0.1 | 1.6 | -1.7 |
| Bill Krueger↔ LAD | 29 | – | 9 | -0.1 | – | – |
| Brian Harper | 27 | FA-elig | 11 | -0.2 | 0.1 | -0.1 |
| Rob Nelson↔ SDP | 23 | – | 7 | -0.3 | – | – |
| Greg Cadaret | 25 | pre-arb | 29 | -0.3 | 0.1 | -0.2 |
| Johnnie LeMaster | 33 | – | 20 | -0.4 | – | – |
| Reggie Jackson | 41 | – | 115 | -0.6 | – | – |
| Stan Javier | 23 | arb | 81 | -0.7 | 0.1 | -0.3 |
45 players appeared (WAR is complete); salary & surplus are on record for 30 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 |