Methods and an apparatus to facilitate the creation of casing exit openings in the casing of parent wellbores. Methods and systems for azimuthally and longitudinally aligning drilling assemblies through openings in a parent wellbore casing to allow for drilling multiple lateral wellbores extending outwardly from a parent wellbore. A method of stimulating one or more subterranean zones intersected by multiple lateral wellbores extending outwardly from one or more patent wellbores includes the steps of: simultaneously injecting a stimulation fluid into the lateral wellbores; and stimulating the zones intersected by the lateral wellbores in response to the stimulation fluid injecting step.