There are some question marks on how sustainable the US oil boom is as the extraction methods are quite capital intensive. We are at historic low capital price and have a fairly high oil price and still the profitability picture is not pretty.
Oil and Gas producers are also facing severe price discounts due to a lack of pipeline capacity in the United States[1]. One could argue that as more pipelines come on line, shale producers will start to see significantly more profits.
To dig deeper see: https://wolfstreet.com/2018/08/15/shale-profits-remain-elusi...