Maximov Denis/Shutterstock US shale operators are seeking ways to prolong their drilling runways as inventory degradation becomes a top concern.Many are turning to M&A to bulk up inventory, but must balance growth with returns and shareholder payouts to calm nervous investors.Boosting recoveries through restimulation and exploration could offer promising upsides on existing acreage. But some larger players are starting to see diversification outside of shale as a longer-term play. Save for later Print Download Share LinkedIn Twitter The Issue