0902 GMT - Galp Energia is getting a cash boost from elevated refining margins, high oil and gas prices and strong power prices, Barclays analyst Naisheng Cui writes. The Portuguese oil and gas company says it could deliver close to 5 billion euros of Ebitda with Brent trading a $90 a barrel and refining margins sitting at $35 a barrel, Cui writes after hosting the company at the Barclays Energy-Power Conference. Shares trade flat at 21.40 euros.