** Shares of Blue Star Helium BNL.AX rise as much as 42.9%
to A$0.030 - set for best day since May 2020, if gains hold
** Helium explorer says it executed master services
agreement with U.S.-based IACX Energy
** Co says agreement for provision of helium recovery
services through delivery and operation at its maiden helium
development, Voyager project
** BNL stock at its highest level since May 17
** Stock down 47.5% YTD, as of last close
(Reporting by Ayushman Ojha in Bengaluru)
((Ayushman.ojha@thomsonreuters.com;))