Deals of the day-Mergers and acquisitions

March 18 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 0930 GMT on Wednesday:

Australia's 3D Energi said it received a buyout notice from the Australian unit of ConocoPhillips to acquire its participating interest in the VIC/P79 exploration permit, offshore Otway Basin, for fair market value.

nL4N40603F

Elliott Investment Management has taken a "significant" stake in Mitsui OSK Lines 9104.T and is pushing the shipping company to improve shareholder returns and capital efficiency, according to two sources familiar with the matter.

nL1N40601J

Activist investor Altai Capital Management called on OraSure Technologies to explore a sale, saying the medical device maker could fetch double its current share price.

nL1N40517C

Sodalis Capital, Colin Thompson's intermediary-focused investment vehicle, has acquired BP Marsh-backed speciality MGA Amiga Specialty in a deal which reunites the former Kentro founder Thompson with long-serving lieutenant Adam Kembrooke.

nL6N405154