Algeria's oil and gas export volumes fell 11 per cent in 2020 to 82.2 million tonnes of oil equivalent (toe), and revenues fell 40 per cent to $20 billion, the energy ministry said on Sunday.

Overall energy output fell 10 per cent to 142 million tonnes of oil equivalent, hit by restrictions linked to the coronavirus pandemic, it said in a report.

Output of refined oil products fell 1.6 per cent to 28 million tonnes, while production of liquefied natural gas fell 11 per cent to 24 million cubic metres due to maintenance work.

Oil and gas account for 60 per cent of Algeria's state budget and 94 per cent of its total exports.