A couple of papers may get you started:
Nazina et al. (2000) Mikrobiologia 69, 113-119.
which has phylogenic diversity studies using the 16S rRNA gene (primer sequences included).
Nazina et al. (2001) IJSEM 51, 433-446
Which deals directly with the taxonomy of Geobacilli (- they are aerobes).
Try searching AEM, too.
> Hi there.
> Does somebody deal with microbiology of oil fields? I am interesting in
> aerobic bacteria. So I hope you could consult me. Especially I'd like to
> find recent reports on nature and diversity of aerobic bacteria which have
> been isolated from, or have been detected in oil field samples by molecular
> Alex Grigorian.