<strong>PREMIER OIL</strong><br />Goldman Sachs updated its estimates for Premier Oil following the firm&rsquo;s recent successes in Vietnam and its prospects in Norway.&nbsp; As a result of the estimate changes, the broker has increased its 12-month price target to 1,507p from 1,423p, and continues to believe that Premier represents good value in its sector.<br /><strong>WELLSTREAM<br /></strong>Ahead of Wellstream&rsquo;s interim results on Thursday, Royal Bank of Scotland changed its recommendation on the stock to &ldquo;hold&rdquo;, from &ldquo;reduce&rdquo;. The broker expects a significant fall in profits, both year-on-year and sequentially, due to lower utilisation and reduced backlog fuelling some plant inefficiency. It increased its target price from 375p to 530p.<br /><strong><br />SAGE</strong><br />Panmure Gordon said that it expects Intuit to report strong results on Thursday, which will bode positively Sage &ndash; as both execute well in a global marketplace and most of Intuit&rsquo;s operational initiative are mirrored by Sage. The broker said that good products and sales execution are key and upgraded the firm from &ldquo;hold&rdquo; to &ldquo;buy&rdquo;, with an increased target price of 218p.