The STOXX 600 European oil and gas index (.SXEP) is at its highest since mid-February, having gained around 13.5% in the past two months.
In the same period, benchmark Brent crude has risen 18% and European natural gas prices have gained 50%.
He said higher oil prices could prompt upgrades to earnings estimates, and potentially dividends too.
"The whole energy sector should benefit, but the downstream sector is looking very cheap and offers a high dividend which is attractive given higher interest rates," said Cau.
Bank of America strategists have an underweight rating on European energy stocks.
Persons:
Heinz, Peter Bader, Brent, Mislav Matejka, Morgan Stanley, Emmanuel Cau, Andreas Bruckner, Lucy Raitano, Amanda Cooper, Miral
Organizations:
REUTERS, Brent, Reuters, JPMorgan, Barclays, Bank of America, Thomson
Locations:
Zistersdorf, Austria, Saudi Arabia, Russia, China