Chron Energy Newslinks | 05.21.10 | Smaller spill saves BP cash and The Bard does commodities.

• BP concedes its oil spill estimate is wrong.

• Regulators tell BP to switch spill chemicals.

• Lower oil spill estimate could save BP money in court.

Key well cement tests never done on spilling well, says Schlumberger.

Industry panel makes recommendations for better drilling safety.

• BP has fallen short on transparency, say federal officials.

• Shareholder lawsuit filed against BP in Alaska.

Kerry and Pickens bury the hatchet, agree on climate issues.

• DOE taps French co. for nuclear enrichment plant.

• Patent office will do more expedited reviews of ‘green tech.”

Shakespeare ponders commodity markets.