RE: production cost28 Dec 2018 12:48
East Texas is still potentially low cost, while Alaska is medium cost - some places have much higher break-evens. And don't forget the Alaska crude attracts a premium over West Texas Intermediate (WTI) benchmark so probably is profitable even around the recent lows.
But everywhere, there is always the argument that advances in drilling and fracking technology and techniques, could reduce costs over time. This may help to explain why US production has surged in 2018. Breakeven costs for US shale have been coming down over the years, they were reported to be 60 or more only a few years ago.