Energy prices-especially for coal and natural gas-have seen a broad-based decline since the release of the April 2019 World Economic Outlook (WEO). After a temporary rebound in April led by positive market momentum and supply cuts, oil prices have retrenched following record-high US production growth and weaker economic growth prospects, especially in emerging markets. In response to declining oil prices, Organization for the Petroleum Exporting Countries (OPEC) and non-OPEC oil exporters (including Russia) agreed to extend their production cuts until March 2020. While supply concerns caused iron ore and nickel prices to rally, most base metal prices declined following continued trade tensions and fears of a global economic slowdown. Agricultural prices decreased slightly as an increase in metal prices caused by disease outbreaks was more than offset by price declines of other foods. This special feature includes an in-depth analysis of precious metals.