California State University-Fresno to Oakland, CA buses and trains from $30

Here are some trips other travelers have found on Routefriend.
$30
4h 25m
3 stops
Amtrak BART
$33
3h 37m
0 stops
Amtrak
$35
4h 33m
1 stop
Amtrak BART
$42
5h 46m
2 stops
Amtrak BART
$46
6h 16m
2 stops
Amtrak BART