BP is cheaper than its rivals. Now an activist investor has swooped in. - MarketWatch

1. Elliott Management acquired a significant stake in BP, boosting share prices. 2. BP shares surged 6.21%, outperforming declines over the past year. 3. Analysts point to BP's low valuation relative to peers like Exxon and Chevron. 4. Elliott's activism suggests potential restructuring or divestiture within BP. 5. BP's unique focus on declining oil production may drive shareholder concerns.