** Shares of oil and gas producer Kosmos Energy KOS.N rise
~10% to $3.00 premarket
** Company walks away from its plan to buy West
Africa-focused Tullow Oil TLW.L
** Kosmos does not intend to make a firm offer for Tullow at
this time, it says without specifying any reason
** The announcement comes less than a week after KOS
revealed it was in early talks for an all-share acquisition of
Tullow
** Shares in London-listed Tullow dropped as much as 7.7% to
21.5p as of 1000 GMT, when the announcement was made
** TLW down ~42% so far this year
** As of last close, KOS stock down ~60% YTD
(Reporting by Vallari Srivastava and Prerna Bedi in Bengaluru)
((Srivastava.Vallari@thomsonreuters.com))