Canadian producers are temporarily shutting in natural gas wellheads amid a record-low negative pricing at the key Alberta gas hub. The price of natural gas at the AECO Hub, the Canadian benchmark price for natural gas on the Nova Gas Transmission Ltd. (NGTL) system, has been weak all summer and plunged below zero earlier this week. On Thursday, the daily spot price at the AECO averaged minus 5 cents per million British thermal units (MMBtu), per pricing data of LSEG cited by Reuters. Earlier in the week ...