10:45 AM New York – Aon second quarter net slipped 5% and Amazon.com second quarter net tumbled 96% to $7 million. Chevron second quarter net slid 1.6% to $7.21 billion. Merck net declined 11.4% to $1.79 billion and Newmont Mining plunged 27.9% to $279 million.

Aon Corporation (AON) soared 5.6% or $2.63 to $49.11 after the insurance company reported total revenue in the second quarter ending in June edged up to $2.82 billion compare to $2.81 billion the same period of last year. Net income in the quarter slipped 5% to $246 million or 73 cents per diluted share compared to $258 million or 75 cents per share a year ago earlier.

Amazon.com, Inc. (AMZN) advanced 5.8% or $13.08 to $233.11 after the online retailer reported net sales in the second quarter ending in June soared 29% to $12.83 billion compared to $9.91 billion in the same period of last year. Net profit in the quarter tumbled 96% to $7 million or 1 cent per diluted share compared to $191 million or 41 cents per share a year ago earlier.

Amazon said third quarter net sales are expected to be between $12.9 billion and $14.3 billion, or to grow between 19% and 31% from a year ago period and operating loss is expected to between $50 million and $350 million.

The company also said its best selling item in the quarter was its kindle Fire e-book reader and tablet and operating income declined to $107 million from $201 million a year ago quarter.

Arch Coal Inc. (ACI) surged 11.4% or 60 cents to $5.86 after the coal producer reported second quarter revenues rose to $1.06 billion, from $985.53 million in the prior-year period. Net loss in the quarter swung to $435.5 million or $2.05 per diluted share compared to a profit of $6.31 million or 4 cents per share in 2011.

Barnes Group Inc. (B) gained 3.3% or 75 cents to $22.98 after the aerospace and industrial components manufacturer stated second quarter net sales decreased 2% to $293.4 million from $297.8 million in the second quarter of 2011. Net income was up 9% to $24.8 million, or 45 cents per diluted share, from $22.7 million or 41 cents per diluted share, a year earlier.

Calpine Corporation (CPN) slipped 1.7% or 30 cents to $17.32 after the power utility provider reported net sales in the second quarter ending in June plunged 46% to $879 million compared to $1.63 billion in the same period of last year. Net loss in the quarter widened to $329 million or 69 cents per diluted share compared to $70 million or 14 cents per share a year ago earlier.

Chevron Corporation (CVX) rose 53 cents to $107.74 after the oil and gas maker reported total revenue in the second quarter ending in June slipped 9.1% to $62.6 billion compare to $68.9 billion the same period of last year. Net income in the quarter slid 1.6% to $7.21 billion or $3.66 per diluted share compared to $7.73 billion or $3.85 per share a year ago.

DTE Energy Company (DTE) increased 1.8% or $1.09 to $61.21 after the energy company reported revenues in the second quarter ending in June flat to $2.03 billion compared to the same period of last year. Net income in the quarter soared 27.7% to $146 million or 86 cents per diluted share compared to $202 billion or $1.19 per share a year ago earlier.

D.R. Horton, Inc. (DHI) slumped 3.9% or 74 cents to $18.06 after the homebuilder reported third quarter revenue increased 14% to $1.1 billion from $975.4 million in the same quarter of 2011. Home sales closed in the quarter increased 9% to 4,957 compared to 4,555 homes in the year ago quarter.

Net profit jumped to $787.8 million or $2.22 per diluted share compared to $28.7 million or 9 cents per diluted share in fiscal 2011.

LyondellBasell Industries N.V. (LYB) advanced 7% or $2.90 to $43.80 after the Netherlands based chemical company reported sales in the second quarter ending in June dropped 15.8% to $11.2 billion compare to $13.3 billion the same period of last year. Net income in the quarter surged 28.2% to $768 million or $1.33 per diluted share compared to $599 million or $1.04 per share a year ago.

Merck & Co., Inc. (MRK) gained 3.4% or $1.49 to $44.82 after the health care provider reported second quarter sales rose 1.3% to $12.31 billion. Net income declined 11.4% to $1.79 billion or 58 cents per diluted share, from $2.02 billion or 65 cents per share in the same quarter last year.

Newmont Mining Corporation (NEM) declined 5% or $2.32 to $43.77 after the gold producer reported sales in the second quarter ending in June slumped 6% to $2.2 billion compare to $2.4 billion the same period of last year. Net income in the quarter plunged 27.9% to $279 million or 23 cents per diluted share compared to $387 million or 77 cents per share a year ago.

Samsung Electronics Co., Ltd., the South Korean conglomerate reported second quarter total sales increased around 21% to 47.60 trillion won from 39.44 trillion won last year. Net profit surged 48% to 5.19 trillion won from 3.51 trillion won in the prior-year quarter.