Pennsylvania oil and gas data
Atlas maps 279,653 well records for Pennsylvania, sourced from Pennsylvania Department of Environmental Protection (DEP). Explore them on the map, or read the analysis below.
Counts as of October 2026, verified 2026-10-28.
Wells by status
Status labels are Pennsylvania Department of Environmental Protection (DEP)'s own. They are not standardised between states, so these counts describe Pennsylvania only.
| Status | Wells |
|---|---|
| Active | 111,757 |
| Plugged OG Well | 69,144 |
| Operator Reported Not Drilled | 43,699 |
| DEP Abandoned List | 20,720 |
| Proposed But Never Materialized | 16,429 |
| DEP Orphan List | 6,376 |
| Abandoned | 6,368 |
| DEP Plugged | 3,849 |
| Cannot Be Located | 599 |
| Plugged Unverified | 310 |
| Duplicate | 209 |
| Regulatory Inactive Status | 180 |
| Uncharted Mined Through | 13 |
Where this comes from
Well records come from Pennsylvania Department of Environmental Protection (DEP). Facility and emissions layers, where present, come from EPA programs including GHGRP, NEI and ECHO, and from PHMSA for pipeline incidents. Atlas normalises these into one schema and joins them on the well API number.
Regulatory data has limits worth knowing. It does not capture failure-mode emissions, it can carry operator reporting errors, and it lags current conditions. Every figure above is a count of what the agency published, not an independent measurement.
Analysis
- Largest Natural Gas Producers in Appalachia (PA, WV, Ohio) The largest gas producers in Pennsylvania, West Virginia and Ohio, ranked by 2025 gas reported to state regulators, credited to each well's current operator.
- Class II Injection Wells and the Other UIC Classes, Explained About 180,000 Class II oil and gas injection wells operate in the US, most for enhanced recovery, not disposal. The six UIC classes and where records live.
- PA DEP Oil and Gas Mapping Tool: How to Search Any PA Well The PA DEP Oil and Gas Mapping tool shows where wells are, but production and inspections sit in separate reports. How to see all three for any mapped PA well.
How to cite this page
Sources: Pennsylvania Department of Environmental Protection (DEP).
TetraSoft. (2026). Pennsylvania oil and gas well data. Figures verified 2026-10-28. https://tetrasoftco.com/data/pennsylvania/
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