0720 GMT [Dow Jones] Tullow Oil's (TLW.LN) Owo-2 well currently drilling offshore Ghana will be the next big catalyst for the company, says NCB Stockbrokers analyst Peter Hutton. "Potential from the Owo-1 prospect west of Tweneboa will make or break [Tullow's] upside guidance of 1.4 billion barrels of oil equivalent," he says. The result could be announced within two weeks, he adds. Gives accumulate rating, 1260p target. Shares +3% at 1072p. ([email protected]) Contact us in London. +44-20-7842-9464 [email protected] (END) Dow Jones Newswires July 06, 2010 03:20 ET (07:20 GMT)