PA Department of Environmental ProtectionThe plugged conservation well layer identifies the permitted surface location of oil and gas conservation wells that have been plugged. A conservation well is any well which penetrates the Onondaga horizon, or in those areas in which the Onondaga horizon is nearer to the surface than thirty-eight hundred feet, any well which exceeds a depth of thirty-eight hundred feet beneath the surface.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/e1738014f3064f0faabc229ceb06e6fc_92engPennsylvania Department of Environmental ProtectionPublicOil & Gas - Plugged Conservation Well Locations [Pennsylvania]Web servicesPennsylvaniaLast Modified: 2026-01-06