BUZZ-MEO Australia rises, shareholders reject Mosman offer
** Oil and gas explorer MEO Australia Ltd rises as much as 12.5 pct to highest since June 2
** Says Mosman Oil and Gas' offer to buy all MEO shares expired on June 12
** The offer, which was not recommended by MEO board, received acceptances from only 2 pct of MEO shares
** About 1.4 mln shares change hands, compared with 30-day average of 1.3 mln (Reuters Messaging: arpitamansukh.vadgama.thomsonreuters.com@reuters.net)