Investors have added to energy-sector funds at the fastest rate in over a decade, driven by the Iran war, leading to a surge in oil prices. Global equity funds focused on the energy sector have received $2.1 billion this month, on track to surpass the 12-year high set in June 2014. As oil prices rise, investors are investing in energy stocks as a hedge against rising oil prices, particularly those of production companies and refiners. However, any signs of de-escalation could trigger a rapid reversal in flows.