Samantha Dart, Goldman's co-head of Global Commodities Research, told clients on Tuesday that U.S. natural gas prices appear oversold and reaffirmed a bullish price forecast for the summer period, citing tightening market fundamentals. 

"Upside to Sum25 Henry Hub from here. On net, we continue to see U.S. gas prices as oversold. With net long positions by managed money now more normalized and fundamentals tightening into peak summer as discussed above, we maintain our Bal Sum25 Henry Hub forecast of $3.90/mmBtu," Dart said.