What follows is a roundup of corporate earnings reports for Tuesday, April 27.
Companies reporting before the bell include DuPont, 3M, Ford and Coca-Cola Enterprises.
After the bell includes Aflac, DreamWorks Animation, Norfolk Southern and Broadcom.
BEFORE THE BELL
DuPont
The chemical company posted earnings of $1.24 a share on revenue of $8.48 billion.
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3M
The diversified industrial manufacturer posted earnings of $1.40 a share on revenue of $6.35 billion.
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Ametek
The electronic instrument manufacturer posted earnings of 54 cents a share on revenue of $556.66 million.
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Ashland
The specialty chemical company announced earnings of $1.02 a share on revenue of $2.25 billion.
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Automatic Data
The data communication and information services company posted earnings of 79 cents a share on revenue of $2.44 billion.
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Avery Dennison
The chemical company  posted earnings of 61 cents a share on revenue of $1.55 billion.
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Axis Capital
The speciality insurance company posted earnings of $0.67 a share on revenue of $1.24 billion.
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Boston Scientific
The medical equipment maker posted earnings of 9 cents a share on revenue of $1.96 billion.
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Celanese
The chemical company posted earnings of 67 cents a share on revenue of $1.39 billion.
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Coca-Cola Enterprises
The beverage maker posted earnings of 27 cents a share on revenue of $4.97 billion.
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Cummins
The manufacturer and servicer of natural gas and diesel vehicles posted earnings of 75 cents a share on revenue of $2.48 billion.
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Ecolab
The chemical company posted earnings of 41 cents a share on revenue of $1.43 billion.
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Estee Lauder
The make-up and skin products maker posted earnings of 34 cents a share on revenue of $1.86 billion.
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Ford
The automaker announced earnings of 46 cents a share on revenue of $31.60 billion.
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FPL Group
The electricity company posted earnings of 94 cents a share on revenue of $3.62 billion.
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Group 1 Automotive
The automotive products and services company delivered earnings of 44 cents a share on revenue of $1.19 billion.
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Hospira
The pharmaceutical company posted earnings of 94 cents a share on revenue of $1.01 billion.
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Lexmark
The computer hardware company posted earnings of $1.35 a share on revenue of $1.04 billion.
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McGraw-Hill
The publishing company posted earnings of 33 cents a share on revenue of $1.19 billion.
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National Oilwell Varco
The oil equipment services company posted earnings of $1.10 a share on revenue of $3.03 billion.
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Newmont Mining
The gold mining company posted earnings of 83 cents a share on revenue of $2.24 billion.
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Office Depot
The office supply retailer reported earnings of 7 cents a share on revenue of $3.07 billion.
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Pentair
The industrial machinery maker posted earnings of 35 cents a share on revenue of $707.01 million.
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Stanley Black & Decker
The durable household products maker posted earnings of 70 cents a share on revenue of $1.26 billion.
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Taiwan Semiconductor
The semiconductor maker is expected to post earnings of 18 cents a share on revenue of $2.85 billion.
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Tyco
The manufacturing and services firm announced earnings of 59 cents a share on revenue of $4.17 billion.
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UAL
The airliner posted a loss of 55 cents a share on revenue of $4.24 billion.
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Under Armour
The sports apparel maker delivered earnings of 14 cents a share on revenue of $229.41 million.
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US Air
The airliner posted a loss of 55 cents a share on revenue of $2.65 billion.
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US Steel
The steel manufacturer posted a loss of $1.12 a share on revenue of $3.90 billion.
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Valero Energy
The oil company posted a loss of 18 cents a share on revenue of $19.64 billion.
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Western Union
The money transfer and payment services company reported earnings of 30 cents a share on revenue of $1.23 billion.
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AFTER THE BELL
Aflac
The insurance company posted earnings of $1.41 a share on revenue of $5.07 billion.
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Broadcom
The semiconductor manufacturer posted earnings of 67 cents a share on revenue of $1.46 billion.
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DaVita
The health care company posted earnings of $1.04 a share on revenue of $1.56 billion.
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DreamWorks Animation
The braodcasting and animation company reported earnings of 24 cents a share on revenue of $162 million.
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DTE Energy
The electricity company announced earnings of $1.38 a share on revenue of $2.45 billion.
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Fidelity National Information
The financial technology service company posted earnings of 41 cents a share on revenue of $1.26 billion.
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Flextronics
The electronics manufacturing services company posted earnings of 16 cents a share on revenue of $5.94 billion.
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Life Technologies
The biotechnology company posted earnings of 87 cents a share on revenue of $887.04 million.
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Norfolk Southern
The railroad company announced earnings of 68 cents a share on revenue of $2.24 billion.
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Questar
The gas distribution company reported earnings of 85 cents a share on revenue of $984 million.
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Torchmark
The life insurance company posted earnings of $1.52 a share.
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* Earnings data from Thomson Reuters excludes extraordinary items.
CORRECTION: An earlier version of this story incorrectly identified Ashland as Ashland Oil. After selling off its oil assets, Ashland focuses solely on specialty chemicals.