On the weekly chart the shares of Anadarko Petroleum broke down a triangle border and went lower than SMA 50. If the price succedes to keep lower than SMA 50 during few days, we may observe a downside trend in a mid-term. RSI indicator turned South, that is also a sign of a 'bearish' mood. The nearest support level may be SMA 200. But be careful - stochastics are already under oversold level, that means that there is a possibility of a correction.