The 15 November election of Donald Trump as US president threatens to overturn many of the key assumptions on which the IEA’s latest long-term outlook is based.

The IEA, the energy arm of the Paris-based OECD group of rich countries, this week released its flagship annual World Energy Outlook.

The 682-page report contains the usual detailed forecasts and analysis on global supply and demand for oil, gas, coal and other forms of energy out to 2040 under a range of...