Some 47 drilling rigs were idled last week according to data provided by Enverus Drillinginfo. That’s the biggest single-week drop since the final week of December 2015–more than four years ago. The rig count stands at 766. Of the rigs idled last week, 40 of the 47 were oil drilling rigs. Of the 40 oil rigs idled, half (20) were idled in the Permian Basin. The good news is that the Marcellus Shale and the Utica Shale remain unchanged at 38 and 10 rigs, respectively. Rig counts in each basin have held steady for four weeks running.