US Permian natural gas prices climbed into positive territory earlier this week after about two weeks of trading at below $0, writes Caroline Evans.
Prices at the Waha hub in Texas rose by $1.71 on Monday to trade at 42 cents per million British thermal units, according to S&P Global Platts.
May prices were trading at -$2.79 on 9 April, according to CME Group data.
