New Delhi: Energy companies are flooded with force majeure notices from customers as the lockdown has shuttered factories and commercial establishments, destroying fuel and electricity demand.From small tile makers in Gujarat to big fertiliser and power producers, refiners, and oil & gas producers have been jolted by the global spread of Covid-19, the measures taken to stem its spread and the economic fallout.Several small factories that have shut due to the lockdown have mailed force majeure notices to city gas distributors, who have in turn sent similar intimations to gas marketers such as GAIL, IndianOil and GSPC.