DEP's Water Well Abandonment Procedure
Perilous Pathways A collection of articles about abandoned wells.
Hunting For Pennsylvania's Orphaned and Abandoned Wells
The Dangers of Orphaned Oil Wells
Frac Tracker: Problem with Abandoned and Orphan Wells
Abandoned Oil And Gas Wells Threaten Drinking Water, Homes Across U.S.
Magnetic Surveys for Locating Abandoned Wells
Efforts under way to find abandoned Pa. gas, oil wells (2016)