** Shares of Australia's Ampol ALD.AX rise as much as 1.9% to A$32.67, their highest level since December 16, 2025
** If gains hold, stock set for its best week since late November 2019, with a climb of 13.7%
** The fuel retailer says Australia's competition regulator has updated its assessment on co's proposed takeover of EG Australia
** Regulator identifies 54 EG Australia sites subject to competition concerns, below 115 sites flagged earlier
** Oil prices rise around 5% on growing disruption to global oil supplies caused by the U.S.-Israeli war with Iran O/R
** Stock last up 0.3%, YTD
(Reporting by Sneha Kumar in Bengaluru)
((Sneha.kumar@thomsonreuters.com;))