BHP BILLITON (BHP $77.46, rating OVERWEIGHT; Price Target lowered to $137 from $144) TOTAL PETROLEUM PRODUCTION REVISED; PETROHAWK ACQUISITION EXAMINED IN DEPTH 9/15/2011

BHP BILLITON (BHP $77.46, rating OVERWEIGHT; Price Target lowered to $137
from $144) TOTAL PETROLEUM PRODUCTION REVISED; PETROHAWK
ACQUISITION EXAMINED IN DEPTH  9/15/2011