Energy stocks gain as Kurdistan oil exports remain stalled

** S&P 500 Energy index .SPNY up 2%, tracking higher crude prices O/R

** Brent crude LCOc1 up 1.2% at $67.34/barrel; U.S. West Texas Intermediate crude futures CLc1 rise 1.4% to $63.16/barrel

** Crude prices rise after a deal to resume oil exports from Iraq's Kurdistan stalled, easing investor fears of oversupply

** Energy majors Chevron CVX.N and Exxon Mobil XOM.N gain 2.1% and 1.8%, respectively

** Halliburton HAL.N, APA APA.O, Devon Energy DVN.N and ConocoPhillips COP.N rise between 3.5% and 7.6%; among the top percentage gainers on the energy index

** Oilfield services companies Baker Hughes BKR.O gain 2.5% and SLB SLB.N up ~3%

** Refiners Phillips 66 PSX.N and Marathon Petroleum MPC.N rise 3.1% and 2.4%, respectively