** Australian energy stocks sub-index .AXEJ falls as much as 2.6% to 8310.8, marking the biggest one-day pct drop since November 26, 2024
** Oil prices fell 2% to a 12-week low amid reports that OPEC+ will proceed with an April output increase and worries on U.S. tariffs may hurt global growth and demand O/R
** Shares of Woodside Energy WDS.AX down 2%, Santos STO.AX sheds 1.8%
** Sub-index has fallen 2.2% this year, as of 2334 GMT
(Reporting by Roshan Thomas in Bengaluru)
((Roshan.Thomas@thomsonreuters.com))