Upstream energy stocks saw strong buying in the week ending September 14 amid sharp gains in crude oil prices. US crude oil went above $70 per barrel due to the bullish inventory report from the U.S. Energy Information Administration and Iran sanctions. The gains were partially offset by a decline due to concerns about how trade wars will impact global demand. Overall, US crude oil rose 1.8% and ended the week at $69 per barrel. On the other hand, US natural gas fell 0.3% and ended the week at $2.77 per MMBtu (million British thermal units).