Buoyed by solid demand and strong prices, Comstock Resources Inc. said it ramped up activity in the Haynesville Shale and grew its proved reserves of primarily natural gas by 9% in 2021.

The Frisco, TX-based independent estimated reserves of 6.12 Tcfe at the close of last year, up from 5.63 Tcfe a year earlier. Of those reserves, 37% were developed and 98% were company operated, it said. Natural gas accounted for about 98% of the total reserves.

The producer is focused on developing the Haynesville in North Louisiana and East Texas.

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Comstock said it spent $628.2 million in 2021 to drill 100 horizontal shale wells and to put 95 wells on production....