Halliburton fell $2.34, or 4.7 percent, to $47.94 at 2:55 p.m. in trading on the New York Stock Exchange. Halliburton in 2004 agreed to pay $7.5 million to resolve a Securities and Exchange Commission investigation of the company's financial statements.
The case is Erica P. John Fund v. Halliburton, 09-1403.