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 6.5% over the last thirty trading days. The S&P 500, in comparison, went up 3%.

Tesco Corporation (TESO) was a major loser in the sector. Its price dropped 15.2% (-$1.83) to close at $10.23, as one million shares moved. The stock traded in a range of $10.17 to $11.96. The stock has fallen over the last three months, dropping $3.67 (-26.4%) from $13.90 on May 9, 2012.

Panhandle Oil and Gas (PHX) rose 3.6% to close at $30.69, cross its 50-day moving average of $30.03 and 200-day moving average of $29.11. Oxford Resource Partners (OXF) declined 12.7% to close at $7.35, moving below its 50-day moving average of $7.93 and 200-day moving average of $9.66.

Clayton Williams Energy (CWEI) rose 4.6% to close at $44.31, approaching its 50-day moving average of $46.45. It has also moved closer to its 200-day moving average of $64.19. American Midstream Partners (AMID) fell 4.3% to close at $20.76, moving closer to its 50-day moving average of $20.44. Also, the stock moved closer to its 200-day moving average of $20.60.

Gulfport Energy Corporation (GPOR) was a significant gainer in the sector, rising 7.4%. The stock closed at $22.76 with one million shares moving. The stock traded in a range of $21.25 to $22.95. The stock has been on the rise in the last two months, up $4.02 (21.5%) from a price of $18.74 on June 7, 2012.

Delek US Holdings (DK) hit a new 52-week high today, reaching $21.91 to top the previous high of $21.25.