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WELL & ENERGY INTELLIGENCE
WELLFICENT / Public well atlas

Public well atlas

Explore documented wells and boreholes. Search source identifiers, inspect coordinates and compare available records.

Matching records
5,758
Distinct source well IDs
5,758
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.

From records to measurements →

Research field production, groundwater levels, formations and well tests together.

Sources, rights and method ↗
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 5,758

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
GeothermalDevelopment

POELDIJK-GT-03-SIDETRACK1

5988 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024376 / 4.236979Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2023-11-12
GeothermalDevelopment

POELDIJK-GT-03-SIDETRACK2

6018 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024376 / 4.236979Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2025-08-07
GeothermalDevelopment

POELDIJK-GT-04

5984 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024449 / 4.236879Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2023-09-15
GeothermalDevelopment

POELDIJK-GT-04-SIDETRACK1

5990 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024449 / 4.236879Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2023-12-07
GeothermalDevelopment

POELDIJK-GT-04-SIDETRACK2

5991 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024449 / 4.236879Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2023-12-16
GeothermalDevelopment

POELDIJK-GT-04-SIDETRACK3

6016 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.024449 / 4.236879Operator in source snapshot: Aardwarmte Vogelaer 2 B.V.Recorded spud date: 2025-07-09
Oil and gasExploration

PUNTHORST-01

2498 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.616079 / 6.277046Operator in source snapshot: NAMRecorded spud date: 1984-10-10
Oil and gasExploration

Q01-01

7453 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.915735 / 4.243936Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1968-12-05
Oil and gasExploration

Q01-01-SIDETRACK1

8453 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.915735 / 4.243936Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1969-02-21
Oil and gasExploration

Q01-02

8824 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.883847 / 4.313245Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1974-10-05
Oil and gasExploration

Q01-02-SIDETRACK1

7454 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.883847 / 4.313245Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1975-01-02
Oil and gasExploration

Q01-03

7455 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.865900 / 4.141268Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1978-11-02
Oil and gasExploration

Q01-04

7456 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.921184 / 4.082153Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1979-03-31
Oil and gasAppraisal

Q01-05

7457 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.879571 / 4.135951Operator in source snapshot: Union Oil Comapny of the NetherlandsRecorded spud date: 1979-04-26
Oil and gasExploration

Q01-06

7458 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.897620 / 4.021372Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1980-03-10
Oil and gasAppraisal

Q01-07

7469 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1980-04-13
Oil and gasExploration

Q01-08

7459 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972243 / 4.105096Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1980-06-23
Oil and gasExploration

Q01-09

7460 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.916158 / 4.151989Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1980-08-01
Oil and gasAppraisal

Q01-10

7461 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.928352 / 4.074923Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1980-09-07
Oil and gasAppraisal

Q01-11

7462 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.889544 / 4.302849Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1980-10-14
Oil and gasAppraisal

Q01-12

7463 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.914988 / 4.175144Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1981-02-03
Oil and gasExploration

Q01-13

7464 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.889596 / 4.218320Operator in source snapshot: Union Oil Company of The NetherlandsRecorded spud date: 1981-03-21
Oil and gasAppraisal

Q01-14

7483 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.924575 / 4.149044Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1981-04-15
Oil and gasAppraisal

Q01-15

7465 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.960458 / 4.118448Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1981-05-22
Oil and gasAppraisal

Q01-16

7466 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.932928 / 4.137645Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1981-06-22
Oil and gasAppraisal

Q01-16-SIDETRACK1

7467 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.932928 / 4.137645Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1981-07-17
Oil and gasExploration

Q01-17

7468 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.954403 / 4.150891Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1981-10-01
Oil and gasExploration

Q01-18

7558 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.967245 / 4.228677Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1984-04-20
Oil and gasExploration

Q01-19

7667 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.909929 / 4.228155Operator in source snapshot: Unocal Netherlands Inc.Recorded spud date: 1985-09-02
Oil and gasExploration

Q01-19A

7653 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.909947 / 4.228156Operator in source snapshot: Unocal Netherlands Inc.Recorded spud date: 1985-09-09
Oil and gasAppraisal

Q01-20

7686 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972116 / 4.105227Operator in source snapshot: Unocal Netherlands Inc.Recorded spud date: 1985-12-27
Oil and gasAppraisal

Q01-21

7689 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972151 / 4.105243Operator in source snapshot: Unocal Netherlands Inc.Recorded spud date: 1986-01-29

Dataset library

Each dataset retains its source, access date, row count and reuse conditions. Filtered NDJSON is available for algorithm development.

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.

NSTA data remains subject to source terms. The onshore agreement permits non-commercial use; the offshore layer has no item-level licence specified. Review each source before commercial use or redistribution.

Record details

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