In North America’s most active shales, infill drilling and hydraulic fracturing of new wells are placing wells at risk of suffering premature production declines. In some areas of the Permian, frac hits have caused child wells to deliver a 30% lower recovery rate than their parents. Some parent wells impacted by frac hits never fully recover and, in the worst cases, permanently stop producing. Understanding the environment that allows contact by a hydraulic fracture emanating from a new well “child” to an old well “parent” is important in determining how to prevent these interactions. In this presentation we will discuss the known causes of this issue as well as the tools and analysis that are currently available to help you detect and mitigate frac hits.