Replacing Russian energy is not an easy task, Eni Chief Executive Claudio Descalzi said on Monday at an industry event in the United Arab Emirates.

Gas supply is a big issue in Europe and Russia is asking Eni to pay for gas in roubles, which is not in the contracts, Descalzi added.
Source: Reuters (Reporting by Riham Alkoussa; Writing by Nadine Awadalla; Editing by Louise Heavens)