Shell held talks last year with the biggest UK North Sea producer Harbour Energy to sell its oil and gas fields offshore Norway and some mature assets offshore the UK, but a deal ultimately couldn’t be reached due to price volatility, company sources told Reuters on Tuesday. Shell, as well as other majors, have worked in recent years on streamlining asset portfolios to focus on the most profitable projects. Back in 2021, Shell said that its oil production peaked in 2019 and is set for a continual decline over the next three decades…