All the oil service stocks took the same rollercoaster as BHI did on Friday. Everyone of those stocks shot up as the oil future went up dramatically, and everyone of them came down as the future dipped a bit. Not very propotional but very consistent. My take is the US oil reserve's figure and the rig count were the reason for them to dip back to a marginal green.
For the Monday market, the oil future seems to be ready to continue its upward trend. If there is no other bad news for the oil price, BHI and other oil service stocks will climb futher next week. If there is tiny bit of bad news to the stability of oil supply in that region, BHI and its counterpart will shoot up to another high in one or two days.