** Shares of 3D Energi TDO.AX rise as much as 60.9% to A$0.185, their highest level since August 2018
** Stock last up 47.8%, heading for best day since November 2007, if current gains hold
** Energy co announces drilling results for its Essington-1 gas exploration well offshore Otway Basin, Victoria
** Says results show clear indications of gas-bearing sandstones in both the primary and secondary targets
** Stock up about 84% YTD, including the day's move
(Reporting by John Biju in Bengaluru)
((John.Biju@thomsonreuters.com;))