US natural gas futures increased 2.8% to $2.94 per MMBtu on May 17–24. The prices are near a four-month high. Natural gas prices increased due to warm weather forecasts. The United States Natural Gas ETF (UNG) increased ~3.3% on May 17–24. UNG seeks to track active natural gas futures. The SPDR S&P Oil & Gas Exploration & Production ETF (XOP) decreased ~3% on May 17–24. XOP aims to follow the performance of the S&P Oil & Gas Exploration & Production Select Industry Index.