Latitude / longitude (WGS84)38.843707 / -122.930610Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Public well atlas
Explore documented wells and boreholes. Search source identifiers, inspect coordinates and compare available records.
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Category counts cover the reviewed snapshots. Search and other filters apply to the results below. Changing category keeps the other filters and clears an incompatible source filter.
Current scope · Geothermal
- Matching records
- 3,042
- Distinct source well IDs
- 3,042
- Source catalogues
- 2
Partial source coverage. Status and company roles are reported by each source, not independently verified as current. Unknown does not mean zero.
Boreholes and sidetracks may share a well ID. Counts describe these source snapshots, not market size. Catalogue labels describe the source, not territorial boundaries. Permitted locations may not have been drilled.
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Active filters
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Opening the map connects to OpenStreetMap. Pins use WGS84 coordinates; accuracy varies by source. Zoom into clusters, then select a pin. Coincident records open a filtered list.
Select 2–3 records on this page to compare.
Latitude / longitude (WGS84)38.837596 / -122.951428Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.844158 / -122.949328Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.849958 / -122.940021Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.845728 / -122.913151Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.701093 / -122.643318Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.697927 / -122.631239Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.712353 / -122.640253Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)38.701657 / -122.669010Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.705512 / -115.416704Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712910 / -115.446499Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)52.507358 / 4.640541Operator in source snapshot: Ce-Ren Beheer BVRecorded spud date: 2013-03-24
Latitude / longitude (WGS84)52.507358 / 4.640541Operator in source snapshot: Ce-Ren Beheer BVRecorded spud date: 2013-05-21
Latitude / longitude (WGS84)52.507358 / 4.640541Operator in source snapshot: Ce-Ren Beheer BVRecorded spud date: 2013-06-03
Latitude / longitude (WGS84)52.507421 / 4.640514Operator in source snapshot: Ce-Ren Beheer BVRecorded spud date: 2013-10-06
Latitude / longitude (WGS84)52.701791 / 4.834107Operator in source snapshot: HVC Aardwarmte Alton B.V.Recorded spud date: 2026-09-11
Latitude / longitude (WGS84)50.919274 / 5.939031Operator in source snapshot: Gemeente HeerlenRecorded spud date: 2006-03-06
Latitude / longitude (WGS84)50.914011 / 5.957581Operator in source snapshot: Gemeente HeerlenRecorded spud date: 2006-03-18
Latitude / longitude (WGS84)50.916823 / 5.947770Operator in source snapshot: Mijnwater Energy B.V.Recorded spud date: 2023-10-19
Latitude / longitude (WGS84)50.913764 / 5.944945Operator in source snapshot: Mijnwater Energy B.V.Recorded spud date: 2026-08-05
Latitude / longitude (WGS84)50.913764 / 5.944945Operator in source snapshot: Mijnwater Energy B.V.Recorded spud date: 2026-09-03
Latitude / longitude (WGS84)50.913764 / 5.944945Operator in source snapshot: Mijnwater Energy B.V.Recorded spud date: 2026-09-06
Latitude / longitude (WGS84)50.913764 / 5.944945Operator in source snapshot: Mijnwater Energy B.V.Recorded spud date: 2026-09-09
Latitude / longitude (WGS84)50.913764 / 5.944945Operator in source snapshot: Mijnwater Energy B.V.Recorded spud date: 2026-09-13
Latitude / longitude (WGS84)33.957091 / -116.476499Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.714786 / -115.518841Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712318 / -115.535758Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712066 / -115.535715Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712317 / -115.535660Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712071 / -115.535608Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712319 / -115.535563Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712320 / -115.535468Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712076 / -115.535426Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712322 / -115.535367Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.714203 / -115.518302Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.712074 / -115.535316Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.714137 / -115.518556Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.714109 / -115.518249Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.714058 / -115.518525Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
Latitude / longitude (WGS84)32.726744 / -115.556499Operator in source snapshot: Not reported / not verifiedRecorded spud date: Not reported / not verified
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Explore measurements and research
These linked source collections have their own coverage and units. They are not automatically joined to the atlas selection.
Dataset library
Each dataset retains its source, access date, row count and reuse conditions. Filtered NDJSON is available for algorithm development.
Geothermal
CalGEM — California public geothermal wells
2,895 · Records in this category
Source accessed:
Reuse terms: review-source-terms
California Department of Conservation, Geologic Energy Management Division (CalGEM). Normalized by Wellficent.
TNO / NLOG — Netherlands boreholes
147 · Records in this category
5,758 · Records in snapshot
Source accessed:
Reuse terms: review-source-terms
Source: NLOG / TNO Geological Survey of the Netherlands. Administrative data normalized by Wellficent.
Sources and methodology
Public administrative records are normalized with stable source identifiers. Original operators, drilling contractors and reported owners remain separate roles. Dates describe source access or reported events; they do not establish live activity. Coordinates are transformed to WGS84 where needed. Confidential records and personal owner fields are excluded. See each source for coverage, attribution and reuse terms.
Related industry reporting
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U.S. selects 21 geothermal projects for negotiations
Field tests and exploration drilling.
U.S. Department of Energy
Beyond the wellhead, context.
A source-linked view of global energy, wells and resources in seven languages.