Ahead on key detail on BP oil spill fund that tempers stock rise.

Reuters was alone with news on June 16 to report that the $20 billion BP had agreed to put aside for damage claims from the Gulf of Mexico oil spill would not cap the company’s total liabilities. It took the wind out of the stock, which had been sent soaring moments earlier on news that a fund would be established and appearing to put a limit on BP’s likely costs. Our White House reporting team got the news from a US administration official.