BUZZ — US energy stocks gain as Saudi attacks boost crude prices
* S&P 500 energy index up 1.4%, tracking higher oil prices O/R * Prices hover near two-week highs as attacks on Saudi Arabia overshadow prospects of higher supply from fresh Russian diesel exports and a Russia-Ukraine ceasefire on energy targets * Brent crude futures up 1.8% at $106.6 a barrel, after touching its highe