* Chevron, Exxon advance as blizzard lifts oil prices
* General Motors rallies after analysts' comments
* U.S. home prices, consumer confidence show weakness
* Dow up 0.2 pct, S&P up 0.1 pct, Nasdaq off 0.2 pct (Updates to close)
By Ryan Vlastelica
NEW YORK, Dec 28 (Reuters) - The Dow and S&P 500 rose in light trading on Tuesday, extending December's rally, as cold weather in the Northeast lifted oil prices and energy shares.
A blizzard increased demand for heating oil, pushing U.S. crude prices above $91 a barrel and lifting the S&P energy sector by 0.4 percent. Commodities producers had fallen on Monday after an interest rate hike by China sparked concerns about decreased demand.
Chevron Corp and Exxon Mobil touched new 52-week highs, with Chevron adding 1.2 percent to $91.19 and Exxon climbing 0.6 percent to $73.42. Both companies are Dow components.
"Equities are taking some cues from the commodity market, but it would be surprising to have dramatic moves given how low the trading volume is and how lightly staffed trading desks are," said Lawrence Glazer, managing partner at Mayflower Advisors in Boston.
Among material companies, Newmont Mining gained 2.4 percent to $61.55 as gold staged its biggest one-day gain since Dec. 3 to $1,404.90 per ounce.
General Motors Co was up 2.1 percent to $35.32 after several banks initiated coverage on the automaker, including "overweight" ratings from Barclays Capital and Morgan Stanley.
The Dow Jones industrial average was up 20.51 points, or 0.18 percent, at 11,575.54. The Standard & Poor's 500 Index was up 0.98 point, or 0.08 percent, at 1,258.52. The Nasdaq Composite Index was down 4.39 points, or 0.16 percent, at 2,662.88.
Downbeat economic data kept the market in check. Consumer confidence unexpectedly deteriorated in December, hurt by increasing worries about the labor market, while the price of U.S. single-family homes fell almost double the expected pace in October.
While the confidence data was weak, new sales data confirmed that U.S. retailers are poised to show their best holiday season in three years, according to the International Council of Shopping Centers and Goldman Sachs.
"The confidence data is having a muted impacted because of the spending data," said Gary Flam, portfolio manager at Bel Air Investment Advisors in Los Angeles. "That action is speaking louder than what consumers are saying."
Trading volumes, already light over the holiday season, were expected to remain thin over the week as the Eastern United States dug out from a snowstorm that stranded thousands of travelers at the end of the Christmas weekend.
MannKind Corp jumped 3.3 percent to $8.23 after the company said U.S. regulators need an additional four weeks to complete a review of its experimental diabetes treatment. The news lifted the hopes of investors who had expected the drug to be rejected outright.
A total of 1,543 stocks fell on the New York Stock Exchange as 1,440 rose, while on the Nasdaq 1,547 shares declined and 1,081 stocks advanced. (Reporting by Ryan Vlastelica; Editing by Kenneth Barry)