Berkshire, DTE Energy, Lilly, Pfizer: U.S. Equity Preview

The following is a list of companies whose shares may have unusual price changes in U.S. exchanges tomorrow. This preview includes news that broke after exchanges closed. Stock symbols are in parentheses after company names.

Abbott Laboratories (ABT US): The drugmaker's experimental combination pill Simcor worked as well as the two drugs it seeks to replace in lowering the harmful form of cholesterol and increasing the beneficial type, a study showed. Abbott stock fell 7 cents to $54.05 on Nov. 2.

American International Group Inc. (AIG US): The company's former chief executive, Maurice ``Hank'' Greenberg, began a campaign to shake up the insurer's management and may seek the sale of some units, he said Nov. 2 in a filing. The shares of New York-based AIG, the world's largest insurer, rose $2.43, or 4.1 percent, in extended trading to $61.55.

Berkshire Hathaway Inc. (BRK/A US): The investment company controlled by billionaire investor Warren Buffett said third- quarter profit surged 64 percent after gains from its investment in PetroChina Co. The stock rose $1,250 to $132,500 in regular trading.

Citigroup Inc. (C US): The crisis of leadership at the largest U.S. bank may hit a climax this weekend amid speculation that Chief Executive Officer Charles O. ``Chuck'' Prince III will resign. The company has had widening losses from bad mortgage debts. The stock gained $1.31, or 3.5 percent, to $39.04 in extended trading.

Delta Petroleum Corp. (DPTR US): The U.S. oil and gas producer may fall at least 20 percent this year and possibly into the next without a gas discovery soon, Barron's said, without citing anyone. Delta Petroleum shares fell 61 cents, or 3.5 percent, to $16.94 on Nov. 2.
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