The outlook for European corporate earnings has improved slightly, with energy companies expected to deliver a sharp increase in third-quarter profits amid market volatility triggered by the US-Iran war, Reuters reported, citing forecasts from LSEG.Companies listed on the benchmark STOXX 600 index are expected to report average earnings growth of 21.9% for the third quarter, marking the second-strongest growth rate in the past four years, according to LSEG data cited by Reuters.