Updated from 11:25 a.m. EDT

Shares of

Cooper Cameron

(CAM)

were among the

NYSE's

winners Monday, rising 2.6% after the maker of oil and gas equipment posted first-quarter earnings and sales that easily topped Wall Street expectations.

The company earned $28.6 million, or 53 cents a share, on sales of $547.9 million. Analysts polled by Thomson First Call were expecting earnings of 40 cents a share on sales of $514.9 million. A year ago the company posted earnings of $17.3 million, or 31 cents a share, on sales of $462.5 million. Strong North American rig activity, as well as strong international markets, contributed to the solid year-over-year gains. Looking ahead, Cooper forecast second-quarter earnings of 55 cents to 60 cents a share, in line with analysts' estimates. For all of 2005, Cooper now expects earnings of $2.45 to $2.60 a share, up from previous guidance of $2.20 to $2.35 a share. Shares traded up $1.44 to $57.36.

Reebok International

( RBK) rose 1.5% after the footwear maker posted better-than-expected first-quarter results. The company earned $43 million, or 70 cents a share, on sales of $925 million. Analysts were expecting earnings of 69 cents a share on sales of $885.7 million. A year ago the company earned $41 million, or 63 cents a share, on sales of $832 million. The latest results were helped by strong worldwide sales of the company's Reebok brand, which jumped 12% to $783 million. Looking ahead, Reebok expects 2005 earnings to grow by 15% and expects sales growth in the midsingle digits. During 2004 the company earned $2.98 a share. Analysts are expecting 2005 earnings of $3.43 a share on sales of $4.01 billion. Shares traded up 61 cents to $42.64.

Shares of

Premcor

(PCO)

rose 18.1% after the oil refiner agreed to be acquired by

Valero Energy

(VLO) - Get Report

for $6.9 billion in stock and cash. Valero will issue $3.5 billion in stock and pay Premcor shareholders $3.4 billion in cash. The combination of the two companies would create the largest refiner of crude oil in North America. The deal, which represents a 25% premium over Friday's closing price of $59, is expected to close by the end of the year. Shares of Premcor traded up $10.70 to $69.70, while shares of Valero traded up 83 cents, or 1.1%, to $75.87.

Gardner Denver

(GDI) - Get Report

rose 4.1% after the company posted first-quarter earnings and sales that beat expectations. The maker of air compressors and pumps earned $10.3 million, or 50 cents a share, on sales of $238.8 million. Analysts were expecting earnings of 46 cents a share on sales of $228.6 million. A year ago the company earned $6.6 million, or 39 cents a share, on sales of $154.4 million. Gardner Denver said that year-over-year results were aided primarily by its September acquisition of Nash Elmo and also by improved demand for pumps used in oil and natural gas well drilling and stimulation. Looking ahead, the company forecast second-quarter earnings of 55 cents to 65 cents a share, in line with expectations, and said that it expects full-year earnings of $2.35 to $2.55 a share, versus analysts' estimates of $2.35 a share. Shares traded up $1.62 to $40.80.

Shares of

Kimberly-Clark

(KMB) - Get Report

fell 0.5% after the company posted first-quarter earnings that matched expectations but warned that second-quarter earnings would be a penny below expectations. The consumer products company posted earnings of $450.1 million, or 93 cents a share, on sales of $3.91 billion. Analysts were expecting earnings of 93 cents a share on sales of $3.88 billion. A year ago the company posted earnings of $443.8 million, or 88 cents a share, on sales of $3.71 billion.

Looking ahead, Kimberly-Clark forecast second-quarter earnings of 92 cents to 94 cents a share, below analysts' expectations of 95 cents a share. For the full year, the company expects to earn $3.70 to $3.85 a share, in line with expectations of $3.81 a share. Shares traded down 29 cents to $63.24.

NYSE volume leaders included

Calpine

(CPN)

, down 14 cents to $2.05;

Lucent Technologies

( LU), up 2 cents to $2.54;

Pfizer

(PFE) - Get Report

, down 19 cents to $27.03;

MBNA

( KRB), up 50 cents to $18.95;

General Electric

(GE) - Get Report

, up 28 cents to $36.38;

American International Group

(AIG) - Get Report

, up $1.41 to $51.76; and

Exxon Mobil

(XOM) - Get Report

, up 54 cents to $59.96.

Nasdaq

volume leaders included

Microsoft

(MSFT) - Get Report

, up 1 cent to $24.99;

Intel

(INTC) - Get Report

, up 17 cents to $23.41;

Cisco

(CSCO) - Get Report

, up 5 cents to $17.48;

Oracle

(ORCL) - Get Report

, up 15 cents to $12.07;

eBay

(EBAY) - Get Report

, up 4 cents to $31.55;

DoubleClick

( DCLK), down 45 cents to $8.12;

Apple Computer

(AAPL) - Get Report

, up $1.48 to $36.98; and

Yahoo!

(YHOO)

, up 62 cents to $35.49.$34.51.