Higher relative cost to produce natural gas from the Haynesville region has led to a gradual decrease in shale gas production over the past five years. The Haynesville formation lies at a greater depth than Marcellus, so drilling costs are significantly more expensive. This caused a sharp drop in monthly dry gas production from a peak at 7.4 billion cubic feet per day (Bcf/d) in January 2012 to less than half that level by early 2016, according to EIA figures. Output rebounded since then to 6.4 Bcf/d in June 2018.
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