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WELLFICENT / Public well atlas

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
147
Distinct source well IDs
147
Source catalogues
1

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.

Records and map

Explore the map ↗

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.

Matching records 147

GeothermalDevelopment

MIDDENMEER-GT-03-SIDETRACK1

5766 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.044139Operator in source snapshot: ECW Geoholding BVRecorded spud date: 2014-03-09
GeothermalDevelopment

MIDDENMEER-GT-04

5758 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767662 / 5.044035Operator in source snapshot: ECW Geoholding BV.Recorded spud date: 2014-01-05
GeothermalDevelopment

MIDDENMEER-GT-05

5858 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.785043 / 5.041883Operator in source snapshot: ECW Geomanagement B.V.Recorded spud date: 2017-03-18
GeothermalDevelopment

MIDDENMEER-GT-06

5859 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.043590Operator in source snapshot: ECW Geomanagement B.V.Recorded spud date: 2017-05-07
GeothermalDevelopment

MIDDENMEER-GT-06-SIDETRACK1

5864 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.043590Operator in source snapshot: ECW Geomanagement B.V.Recorded spud date: 2017-07-28
GeothermalDevelopment

MIDDENMEER-GT-06-SIDETRACK2

5867 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.043590Operator in source snapshot: ECW Geomanagement B.V.Recorded spud date: 2017-08-23
GeothermalDevelopment

MIDDENMEER-GT-07

6002 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767658 / 5.043693Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-08-11
GeothermalDevelopment

MIDDENMEER-GT-07-SIDETRACK1

6003 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767658 / 5.043693Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-10-02
GeothermalDevelopment

MIDDENMEER-GT-07-SIDETRACK2

6008 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767658 / 5.043693Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-12-09
GeothermalDevelopment

MIDDENMEER-GT-08

5972 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.788676 / 5.027668Operator in source snapshot: ECW Energy B.V.Recorded spud date: 2022-12-18
GeothermalDevelopment

MIDDENMEER-GT-09

5973 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.788732 / 5.027596Operator in source snapshot: ECW Energy B.V.Recorded spud date: 2022-12-31
GeothermalDevelopment

MIDDENMEER-GT-10

5992 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.044628Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-03-14
GeothermalDevelopment

MIDDENMEER-GT-10-SIDETRACK1

5994 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.044628Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-04-23
GeothermalDevelopment

MIDDENMEER-GT-10-SIDETRACK2

5995 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767669 / 5.044628Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-05-19
GeothermalDevelopment

MIDDENMEER-GT-11

6001 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767665 / 5.043827Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-07-29
GeothermalDevelopment

MIDDENMEER-GT-11-SIDETRACK1

6005 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767665 / 5.043827Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2024-11-04
GeothermalDevelopment

MIDDENMEER-GT-11-SIDETRACK2

6012 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.767665 / 5.043827Operator in source snapshot: Ennatuurlijk Aardwarmte Middenmeer B.V.Recorded spud date: 2025-01-16
GeothermalDevelopment

MONSTER-GT-01

5978 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.032135 / 4.201492Operator in source snapshot: HVC Aardwarmte B.V.Recorded spud date: 2023-04-07
GeothermalDevelopment

MONSTER-GT-02

5979 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.032142 / 4.201609Operator in source snapshot: HVC Aardwarmte B.V.Recorded spud date: 2023-04-17
GeothermalExploration

NAALDWIJK-GT-01

5883 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)51.989925 / 4.239161Operator in source snapshot: Trias Westland B.V.Recorded spud date: 2017-11-09
GeothermalDevelopment

NAALDWIJK-GT-02

5896 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)51.989861 / 4.239275Operator in source snapshot: Trias Westland B.V.Recorded spud date: 2018-03-10
GeothermalDevelopment

NAALDWIJK-GT-02-SIDETRACK1

5899 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)51.989861 / 4.239275Operator in source snapshot: Trias Westland B.V.Recorded spud date: 2018-03-23
GeothermalDevelopment

NAALDWIJK-GT-03

5931 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)51.989733 / 4.239490Operator in source snapshot: Trias Westland B.V.Recorded spud date: 2020-07-11
GeothermalDevelopment

NAALDWIJK-GT-03-SIDETRACK1

5940 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)51.989733 / 4.239490Operator in source snapshot: Trias Westland B.V.Recorded spud date: 2020-08-13
GeothermalDevelopment

NAALDWIJK-GT-04

5932 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)51.989687 / 4.239562Operator in source snapshot: Trias Westland B.V.Recorded spud date: 2020-06-12
GeothermalExploration

PIJNACKER-GT-01

5565 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.021136 / 4.422099Operator in source snapshot: Ammerlaan Real EstateRecorded spud date: 2010-03-09
GeothermalDevelopment

PIJNACKER-GT-02

5566 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.021200 / 4.422043Operator in source snapshot: Ammerlaan Real EstateRecorded spud date: 2010-05-26
GeothermalDevelopment

PIJNACKER-GT-03

5590 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.007959 / 4.420268Operator in source snapshot: Gebr. Duijvestijn B.V.Recorded spud date: 2010-08-28
GeothermalDevelopment

PIJNACKER-GT-03-SIDETRACK1

5600 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.007959 / 4.420268Operator in source snapshot: Gebr. Duijvestijn B.V.Recorded spud date: 2010-09-21
GeothermalDevelopment

PIJNACKER-GT-03-SIDETRACK2

5601 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.007959 / 4.420268Operator in source snapshot: Gebr. Duijvestijn B.V.Recorded spud date: 2010-09-29
GeothermalDevelopment

PIJNACKER-GT-04

5591 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.007975 / 4.420371Operator in source snapshot: Gebr. Duijvestijn B.V.Recorded spud date: 2010-11-20
GeothermalDevelopment

PIJNACKER-GT-05

5903 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.020825 / 4.422512Operator in source snapshot: Ammerlaan Geothermie B.V.Recorded spud date: 2018-08-21
GeothermalDevelopment

PIJNACKER-GT-05-SIDETRACK1

5908 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.020825 / 4.422512Operator in source snapshot: Ammerlaan Geothermie B.V.Recorded spud date: 2019-07-04
GeothermalDevelopment

PIJNACKER-GT-06

5902 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.020880 / 4.422456Operator in source snapshot: Ammerlaan Geothermie B.V.Recorded spud date: 2018-04-30
GeothermalDevelopment

PIJNACKER-GT-06-SIDETRACK1

5905 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.020880 / 4.422456Operator in source snapshot: Ammerlaan Geothermie B.V.Recorded spud date: 2018-07-19
GeothermalDevelopment

PIJNACKER-GT-06-SIDETRACK2

5906 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.020880 / 4.422456Operator in source snapshot: Ammerlaan Geothermie B.V.Recorded spud date: 2018-07-23
GeothermalDevelopment

PIJNACKER-GT-06-SIDETRACK3

5907 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.020880 / 4.422456Operator in source snapshot: Ammerlaan Geothermie B.V.Recorded spud date: 2018-08-04
GeothermalDevelopment

POELDIJK-GT-01

5840 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.023693 / 4.237835Operator in source snapshot: Aardwarmte Vogelaer B.V.Recorded spud date: 2016-08-19
GeothermalDevelopment

POELDIJK-GT-02

5841 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.023757 / 4.237749Operator in source snapshot: Aardwarmte Vogelaer B.V.Recorded spud date: 2016-10-01
GeothermalDevelopment

POELDIJK-GT-03

5983 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024376 / 4.236979Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2023-09-05

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

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.

Record details

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