Helmerich & Payne, Inc Among Energy's Biggest Movers on November 15, 2012

This morning's trading has marked a bad day for the market so far. The Nasdaq has declined 0.4%; the S&P 500 is trading down 0.3%; and the Dow has fallen 0.3%. The energy sector is the category of stocks that relate to producing or supplying energy. This sector includes companies involved in the exploration and development of oil or gas reserves, oil and gas drilling, or integrated power firms. Performance in the sector is largely driven by the supply and demand for worldwide energy. Energy producers will do very well during times of high oil and gas prices, but will earn less when the value of energy drops. Furthermore, this sector is sensitive to political events, which historically have driven changes in the price of oil.

The Energy sector (XLE) has risen 0.2% despite little change in the market overall. Currently, the biggest movers in the sector are:

Company	Market Cap	Percentage Change
Targa Resources (NYSE:NGLS)	$3.48 billion	-7.2%
Western Refining (NYSE:WNR)	$2.34 billion	-5.9%
InterOil Corporation (NYSE:IOC)	$2.87 billion	+5.6%
Walter Energy (NYSE:WLT)	$1.92 billion	-5.4%
Helmerich & Payne, Inc (NYSE:HP)	$4.87 billion	+4.8%
Calumet Specialty Products Partners (Nasdaq:CLMT)	$1.7 billion	-4%
Martin Midstream Partners (Nasdaq:MMLP)	$727 million	-3.5%

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Targa Resources (NYSE:NGLS) has decreased to $36.20 per share, a 7.2% fall. The company's volume is currently 671,508 shares for the day, 2.5 times the current three-month average.

Western Refining (NYSE:WNR) is down 5.9% to reach $24.93 per share. The company is currently trading a volume of 932,966 shares.

Rising 5.6%, InterOil Corporation (NYSE:IOC) is currently trading at $62.74 per share. At 687,032 shares, the company's volume so far today is consistent with the volume from yesterday.

Walter Energy (NYSE:WLT) has fallen 5.4% and is currently trading at $29.01 per share. This morning, the company's volume is 2.8 million shares. This is 0.7 times the current daily average.

Helmerich & Payne, Inc (NYSE:HP) has moved up 4.8% and is currently trading at $48.25 per share. The company's volume for the day so far is 1.2 million shares, one times its average over the past three months.

Calumet Specialty Products Partners (Nasdaq:CLMT) is trading at $28.30 per share, down 4%. The company's volume for the day so far is 726,554 shares.

At $30.35, Martin Midstream Partners (Nasdaq:MMLP) has slipped 3.5%. So far today, the company's volume is 114,713 shares,.

The Bottom Line No matter the economic climate, Wall Street will always have stocks that make major moves each week. Paying close attention to the previous ratios will help you identify key times to adjust your strategy. Keep in mind that all these ratios should be compared against historical numbers and industry information in order to get a more complete picture.