On a trading day that saw the S&P 500 gain 0.2%, the Energy sector (XLE) showed little change.

The ETF, as a proxy for the sector, tracked closer to the overall market today than over the past month. Entering today's trading, XLE was up 10.3% over the last thirty trading days while the S&P 500 climbed 5.5%.

Delek US Holdings (DK) was one of the sector's big losers, as its price dropped 11.7% (-$3.06) to close at $22.99. 2.6 million shares of the stock moved. The stock traded between $22.76 and $24.34.

Natural Resource Partners (NRP) was a significant gainer in the sector, rising 5.7%. The stock closed at $21.75 with 462,691 shares moving. The stock traded in a range of $20.54 to $21.82. The stock has seen some positive movement recently as shares are up $2.92 (15.5%) from a price of $18.83 on August 3, 2012.

Clayton Williams Energy (CWEI) rose 1.7% to close at $46.01, cross its 50-day moving average of $45.85 and 200-day moving average of $63.24. Sandridge Mississippian Trust I (SDT) declined 6.2% to close at $27.34, moving below its 50-day moving average of $27.32 and 200-day moving average of $29.05.

Tesco Corporation (TESO) rose 5.6% to close at $11.29, approaching its 50-day moving average of $11.30. It has also moved closer to its 200-day moving average of $12.82. Pioneer Natural Res (PXD) fell 1.6% to close at $98.29, moving down to 0.8% above its 200-day moving average of $97.49.