I believe they just locked in at a low price
If you can find a link, I would appreciate it. I haven't found anything searching.
The catch is Nat Gas from the well doesn't go straight to the distribution system.
Raw Nat Gas goes through initial separation to cut liquids, but is still to wet and typically too contaminated to sell. It will have CO, CO2, N2, H2S, water, NatGas liquids, etc that make it out of specification. It goes to a Gas Plant to get cleaned up, profitable liquids like Ethane, Butane, etc are sold separately. The NatGas, now at Pipeline Spec, goes into the transmission and distribution systems for end users.
It price spike times like the Northeast earlier this year are because of bottlenecks in the delivery system to the end user. The demand spikes due to temperature, or the supply crashes due to failure. In either case, any amount of gas as a reserve in a reservoir is of no help. It cannot get past the bottleneck to help supply demand.