** Australian energy index .AXEJ rise as much as 1.2%, marking its biggest intraday gain since July 25

** Sub-index at 9,287.1 points, its highest level since July 30 as oil rebounds from 5-week low on supply disruptions concerns after Trump's threats of tariffs on U.S. imports from India over its Russian crude purchasesO/R

** Brent crude futures LCOc1 is up 0.6% to $68.07 a barrel by 0330 GMT O/R

** Oil and gas major Woodside Energy WDS.AX gains 1.2%, smaller peer Santos STO.AX adds 0.5%

** YTD, AXEJ up 7.6% vs benchmark ASX200 .AXJO up 8.1%

(Reporting by Rajasik Mukherjee in Bengaluru)

((Rajasik.Mukherjee@thomsonreuters.com))