The loss of its biggest market and harsher economic sanctions will cost Russia $1 trillion in hydrocarbon export revenues by 2030, the International Energy Agency said on Thursday.“There's no way back for the EU-Russia gas relationship, and that relationship was built up over 50 years on the basis of trust,” Tim Gould, the IEA’s chief economist, said.Russia's share of global oil exports will drop once the EU ban kicks in and natural gas exports will halve by 2030 from current levels, the IEA said in its report.Oil markets are closely watching how a price cap on Russian oil will be enacted by the Group of Seven nations.China will most likely continue with its zero-Covid policy, which has the backing of President Xi Jinping."