Standard & Poor’s 500 Index futures expiring in March fell 0.1 percent to 1,256.6.

AMR Corp. (AMR) plunged 42 percent to 30 cents. NYSE Euronext said shares of the parent of American Airlines will be removed from the New York Stock Exchange before trading begins on Jan. 5, following the Fort Worth, Texas-based company’s bankruptcy filing on Nov. 29.

Harleysville Group Inc. (HGIC) : Liberty Mutual Holding Co. is asking regulators to scrutinize the sale of Harleysville Mutual Insurance Co. to a rival after its own bid for the company was rejected, said a person with knowledge of the matter.

Patterson-UTI Energy Inc. (PTEN) dropped 0.5 percent to $20. The provider of drilling services to oil and natural gas companies said it is retiring 31 of its drilling rigs this month. The Houston-based company expects an after-tax impairment charge of about $7.1 million.

Sears Holdings Corp. (SHLD) slipped 0.4 percent to $32.76. Fitch Ratings downgraded the long-term default ratings of the retailer to CCC from B, after the company said this week it will close as many as 120 Kmart and Sears full-line stores.

To contact the reporter on this story: Inyoung Hwang in New York at ihwang7@bloomberg.net.

To contact the editor responsible for this story: Nick Baker at nbaker7@bloomberg.net.

http://www.bloomberg.com/news/2011-12-29/amr-harleysville-group-patterson-uti-energy-sears-u-s-equity-preview.html

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