** Shares of Australia's Monadelphous Group MND.AX rise as
much as 1.6% to A$14.97, their highest level since Nov. 16
** Engineering co secures an extension to its long-term
maintenance and shutdown services agreement with Woodside Energy
WDS.AX
** Co's existing agreement with Woodside has been extended
for a three-year period, with an additional option for a further
two years
** Adds the value of extension is estimated at about A$180
mln ($121.70 mln) per annum
** Stock has risen 10.3% this year, as of last close
($1 = 1.4791 Australian dollars)
(Reporting by Megha Rani in Bengaluru)
((Megha.Rani2@thomsonreuters.com;))