Swiss investment company Energy Infrastructure Partners (EIP) has agreed to acquire a stake of up to 9% in Plenitude, the renewables arm of Italian oil and gas major Eni SpA <a href="https://www.borsaitaliana.it/borsa/azioni/scheda/IT0003132476.html?lang=en" target="_blank">(BIT:ENI)</a>, in a deal that values the business at over EUR 10 billion (USD 10.94bn) in enterprise terms.