** Shares of oil and gas explorer Melbana Energy Ltd
MAY.AX surge as much as 15% to A$0.115, marking their biggest
intraday gain since July 21
** MAY says now estimating significantly higher net pay from
a well at an oil field in Cuba
** MAY holds a 30% stake and is operator of Block 9 PSC
onshore, an onshore area on the north coast of Cuba within a
hydrocarbon system
** Stock among top gainers on the ASX All Ordinaries index
.AORD
** MAY up 58.7% YTD as of last close
(Reporting by Shivangi Lahiri in Bengaluru)
((Shivangi.Lahiri@thomsonreuters.com;))