Energy shares were this week's strongest market sector. That's the first time we've seen relative strength by the energy sector in three months. Chart 1 shows the Energy Sector SPDR (XLE) trading at the highest level in seven months. [A "golden cross" has also been formed by the 50-day average rising above the 200-day (gold circle)]. The line along the bottom is the XLE/SPX ratio, and shows it breaking a three-month down trendline. That's a sign that money is starting to move into this sector more aggressively. Chart 2 shows the Market Vectors Oil Services ETF (OIH) very close to breaking through its 200-day average (red circle). Its relative strength ratio (below chart) is also starting to rise.