In January, CNX was fracking the Shaw 1G well when it lost pressure in the hole and subsequently discovered pressure spikes in nine conventional wells in Westmoreland County, Pa., according to the Pittsburgh Post-Gazette. The affected wells had to be flared for days, while CNX brought the Shaw 1G well under control.

After months of analysis, CNX has been able to pinpoint the cause of the Shaw 1G’s failure in January. The company discovered production pipe had cracked under the heat and pressure of the well, which pushed gas into the nearby shallow wells.

CNX has resolved to stop using the kind of pipe that failed where conditions mirror what was happening a mile under ground inside the Shaw 1G well. Instead, it will use pipe that’s more flexible under such conditions. Additionally, the company is in the process of permanently plugging its Shaw 1G well.

Learn more: Pittsburgh Post-Gazette > CNX reveals cause of well failure near Beaver Run Reservoir