** S&P 500 Energy index .SPNY up 2.2%, tracking rising crude prices O/R

** Brent crude futures LCOc1 up 3% at $65.77/barrel, and U.S. West Texas Intermediate crude CLC1 gains 2.9% to $61.28/barrel

** Prices rise as heightened concerns surrounding major producer Iran and potential supply disruptions overshadowed the prospect of increased crude supply from Venezuela

** Oil majors Exxon XOM.N and Chevron CVX.N up 2% and 1.8%, respectively

** Exxon shares hit record high, surpass Oct 2024 peak

** EOG Resources EOG.N, Texas Pacific Land Corp TPL.N, Devon Energy DVN.N and APA Corp APA.O up between 3.6% and 4.6%; among biggest percentage gainers on the index

** Oilfield services firms Halliburton HAL.N and Baker Hughes BKR.O up 2.6% and 1.6%, respectively

** Refiners Valero Energy VLO.N up 2.7% and Marathon Petroleum MPC.N rise 1.3%

(Reporting by Katha Kalia in Bengaluru)

((katha.kalia@thomsonreuters.com))