Repsol has drilled oil wells in Libya Benjamin Lowy/Getty Images The world’s appetite for oil could peak within five years, according to one of Europe’s biggest oil and gas firms – much earlier than most rival oil companies expect. Luis Cabra at Repsol, which last month became the first major oil company to declare a target of reducing carbon emissions to net zero by 2050, said peak demand could arrive soon as countries begin to act on climate change. Global oil demand is expected to inch up by around one per cent this year, reaching just over 100 million …