Piper Jaffray analyst Bill Herbert has updated his supply/demand framework for the oil sector in Q4 with the assumption of oil prices trading near the low end of the $50-$60 per barrel range in the first half of 2019. The analyst says he is also lowering his drilling rig forecast to reflect the numerous field level activity and reducing his price target on Oil Service names to reflect the findings. Herbert lowers the price target on Basic Energy Services (BAS) to $10 from $11, Baker Hughes (BHGE) to $33.50 from $38, C&J Energy (CJ) to $23.50 from $29, FTS International (FTSI) to $12.50 from $17.25, Gardner Denver (GDI) to $29 from $32, Liberty Oilfield Services (LBRT) to $21 from $27, National Oilwell (NOV) to $32 from $42, Oil States (OIS) to $17 from $25.50, Quintana Energy Services (QES) to $8 from $11.50, RPC Inc (RES) to $11.75 from $15.25, Tenaris (TS) to $34 from $42.50, Mammoth Energy Services (TUSK) to $28 from $36.50, Select Energy Services (WTTR) to $15.15 from $16.50, and Cactus (WHD) to $32 from $44.