Barclays analyst J. David Anderson downgraded Rowan Companies (RDC) to Underweight and lowered his price target for the shares to $10 from $14. The analyst views the offshore drillers as "highly overvalued" following the recent share rallies. He cut his near-term floater forecast to $150,000 per day from $235,000 per day and now sees 35% average downside to offshore drillers. Anderson this morning also downgraded Diamond Offshore (DO) to Underweight and cut his price target on Ensco (ESV) to $4 from $6, on Noble Corp. (NE) to $4 from $5 and on Transocean (RIG) to $7 from $9.