[Intro, Omar solo, up to 0:32]
E  :-----0*-------|-----------------------------------------------------|
B  :-----0*-------|-----------------------------------------------------|
G  :-----0*-------|-----------------------------------------------------|
D  :-----0*---0---|------------5-4------------5-4-----------------------|
A  :------------0-|-------5s7------------5s7----------------------------|
E  :-0------------|-------------------------------0---------------------|
Repeat this a few times, some times adding opens on the B & G strings. When the rest of the band comes in it's mostly the same thing, but add in some more bits.
*Play it way down low by the pickups to get the right sound.

[Chorus]
E  :--12--15---x3|
B  :--12--15-----|
G  :-------------|
D  :-------------|
A  :-------------|
E  :-------------|
This is kind of hard to tell if it's the guitar or the keyboard. I kind kind of hear some distortion, but I can't hear it on the live version, so I'm assuming this is the guitar. May be Em Gm.

[Verse, 2:02]
E  :-15-12-0-10-11-12---------------------|
B  :------------------0-10-11-12----------|
G  :-----------------------------0-12b----|
D  :--------------------------------------|
A  :--------------------------------------|
E  :--------------------------------------|

AT THE DRIVE-IN FOREVER