Googling my ass off to find out the fuel suppliers for each team in formula 1, but it's way harder to find than I expected
Here's what I have so far.. can anyone help me fill in the blanks please?

Red Bull F1 - Total
McLaren - Mobil
Ferrari - Shell V-Power
Mercedes GP - Petronas
Lotus Renault GP - Total
Williams - ??
Force India - ??
Sauber - Ferrari engine, so Shell too??
Scuderia Toro Rosso - Ferrari engine, so Shell too??
Lotus - Renault engine, so Total??
HRT F1 Team - ??
Virgin - ??

Thanks!

Force India is using Mobil 1 too.
Source

i'd expect teams using the same engine sto use the same fuel, otherwise they're looking at major remapping and no guarentee the engine will last given how the fuels are made for specific engines

This should answer the rest:

Force India - Mobil 1
http://en.wikipedia.org/wiki/Force_India_VJM04
Williams - BP
http://en.wikipedia.org/wiki/Williams_FW33
Sauber - Shell(V power Im assuming but it doesn't say)
http://en.wikipedia.org/wiki/Sauber_C30
STR - Shell V power
http://en.wikipedia.org/wiki/Toro_Rosso_STR6
Team Lotus - Total
http://en.wikipedia.org/wiki/Lotus_T128
HRT F1 Team - BP
http://en.wikipedia.org/wiki/Hispania_F111
Virgin Racing - BP
http://en.wikipedia.org/wiki/Virgin_MVR-02

Wow, that's great! Wikipedia never came up on my search queries, nor did I think of it myself, d'oh! Thanks a lot guys!