Some shale producers said all they need is $30 oil to consider bringing back curtailed crude output. (Bloomberg) — A pair of prominent shale producers said all they need is oil around $30 a barrel to consider bringing back curtailed crude output and fracking new wells. Diamondback Energy Inc. is curbing production this month by 10% to 15% and sending home most of its fracking crews for the whole quarter. The Midland, Texas-based company expects to end this year with more than 150 wells that were drilled but never fracked as U.S. producers avoid pumping oil into a vastly oversupplied market. Parsley Energy Inc., meanwhile, has curtailed a quarter of its output and temporarily abandoned its five-rig, two-frack crew program. The historic rout in crude prices amid the Covid-19 pandemic has spurred an unprecedented retreat from shale exploration. Producers from Chevron Corp. and Exxon Mobil Corp. to mom-and-pop drillers […]