** Shares of oil and gas companies climb, tracking higher
crude prices; S&P 500 Energy sector .SPNY rises 0.8%
** Brent crude LCoc1 up ~3.5% at $76.46/bbl and U.S. West
Texas Intermediate crude CLc1 up ~3.6% at $72.21/bbl on
investor concerns that a widening Middle East conflict can
disrupt crude oil flows from the region
** Both Brent and WTI up more than 6% each so far this week
** Industry giant Exxon Mobil XOM.N gains 0.5%
** Overall, energy companies gain between 1% and 3.5%
** Top gainers include Strathcona SCR.TO up 3.5%, Valero
VLO.N up 3.2%, SM Energy SM.N up 2.5%, Patterson-UTI
PTEN.N up 1.3% and Halliburton HAL.N up 1.5%
(Reporting by Seher Dareen in Bengaluru)
((Seher.Dareen@thomsonreuters.com;))