** Shares of Australian oil and gas explorer Strike Energy
STX.AX rises as much as 9.8% to A$0.225, marking their biggest
intraday pct jump since April 29
** STX top gainer in the ASX 200 benchmark index .AXJO ;
touches its highest level since May 17
** Trading 7.3% higher at A$0.220 as at 0250 GMT
** Says Walyering gas field in Western Australia has reached
'payback' of its total development capital spend of ~A$30 mln
($20.00 mln) only 8 months after it came online
** Adds total gross income received to date from Walyering
project is ~A$47 mln
** STX down 57.3% this year as of last close
($1 = 1.4997 Australian dollars)
(Reporting by Sameer Manekar in Bengaluru)
((Sameer.Manekar@thomsonreuters.com; Twitter: https://twitter.com/sameer_manekar))