** Shares of oil and gas explorer Winchester Energy Ltd
WEL.AX rise as much as 21.4% to A$0.017, marking their biggest
intraday pct gain since July 23
** Co says drilling at its lease in the East Permian Basin
in Texas revealed significant presence of oil and gas
urn:newsml:reuters.com:*:nASXBkCLx
** Stock hits highest since Aug. 3
** Almost 9 mln shares change hands, vs 30-day average
volume of ~2 mln
** Stock down 36.4% YTD, as of last close
(Reporting by Arundhati Dutta in Bengaluru)
((Arundhati.Dutta@thomsonreuters.com;))