BP's chief accused of 'stonewalling'
hayward_100617c.gi.top.jpgBP's CEO, Tony Hayward, underwent
several hours of questioning from a House subcommittee looking
into the Gulf oil spill. By Steve Hargreaves, senior writer  NEW
YORK (CNNMoney.com) -- Lawmakers ripped into BP chief Tony
Hayward on Thursday, accusing him of being ill-prepared for
congressional testimony and not cooperating with an
investigation into the Gulf of Mexico oil spill.         Rep.
John Dingell, D-Mich., wanted to know how much it would have
cost BP to perform additional tests on the cement in the well.
"I cannot say," said Hayward.  Dingell also wanted to know how
much it would have cost to circulate a heavier drilling mud
through the pipes, which may have prevented the explosion.  "I
cannot say," replied Hayward, again.  "We thought we'd have more
candid responses to our questions," said Rep. Bart Stupak,
D-Mich. " You're the CEO, you headed exploration, you know
what's going on."  Criticizing Hayward for his lack of answers
became a