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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
138
Distinct source well IDs
138
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 138

Oil and gasAppraisal

P09-05

7655 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.561253 / 3.719266Operator in source snapshot: Amoco Netherlands Petroleum CompanyRecorded spud date: 1985-09-01
Oil and gasAppraisal

P09-06

7781 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1987-10-27
Oil and gasAppraisal

P09-06-S1

8452 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1987-11-06
Oil and gasDevelopment

P09-HORIZON-A-02

8152 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1993-08-12
Oil and gasDevelopment

P09-HORIZON-A-03

8153 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1993-08-14
Oil and gasDevelopment

P09-HORIZON-A-03-SIDETRACK1

8166 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1994-01-06
Oil and gasDevelopment

P09-HORIZON-A-04

8154 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1993-08-17
Oil and gasDevelopment

P09-HORIZON-A-05

8155 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1993-08-16
Oil and gasDevelopment

P09-HORIZON-A-05-SIDETRACK1

8162 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1993-12-01
Oil and gasDevelopment

P09-HORIZON-A-06

8167 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1994-01-16
Oil and gasDevelopment

P09-HORIZON-A-07

8204 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-02-19
Oil and gasDevelopment

P09-HORIZON-A-07-SIDETRACK1

8450 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-03-18
Oil and gasDevelopment

P09-HORIZON-A-08

8201 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-02-16
Oil and gasDevelopment

P09-HORIZON-A-08-SIDETRACK1

8451 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552560 / 3.741041Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-04-21
Oil and gasDevelopment

P09-HORIZON-A-09

9300 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552534 / 3.740982Operator in source snapshot: Petrogas E&P Netherlands B.V.Recorded spud date: 2019-05-07
Oil and gasDevelopment

P09-HORIZON-A-09-SIDETRACK1

9309 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552534 / 3.740982Operator in source snapshot: Petrogas E&P Netherlands B.V.Recorded spud date: 2019-07-11
Oil and gasDevelopment

P09-HORIZON-A-09-SIDETRACK2

9313 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.552534 / 3.740982Operator in source snapshot: Petrogas E&P Netherlands B.V.Recorded spud date: 2019-08-28
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

Q01-14

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

Q01-20

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
Oil and gasAppraisal

Q01-21-SIDETRACK1

8459 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972151 / 4.105243Operator in source snapshot: Unocal Netherlans Inc.Recorded spud date: 1986-02-21
Oil and gasAppraisal

Q01-21-SIDETRACK2

8460 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972151 / 4.105243Operator in source snapshot: Unocal Netherlands Inc.Recorded spud date: 1986-02-24
Oil and gasAppraisal

Q01-23

8050 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.881868 / 4.318966Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1991-05-20
Oil and gasDevelopment

Q01-HALFWEG-A-02

8211 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.881868 / 4.318966Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-06-03
Oil and gasDevelopment

Q01-HALFWEG-A-02-SIDETRACK1

8235 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.881868 / 4.318966Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-09-23
Oil and gasDevelopment

Q01-HALFWEG-A-03

8212 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.881868 / 4.318966Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1995-06-06
Oil and gasDevelopment

Q01-HAVEN-A-01

7948 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972215 / 4.106168Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1989-10-20
Oil and gasDevelopment

Q01-HAVEN-A-02

7956 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.972215 / 4.106168Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1989-11-16
Oil and gasDevelopment

Q01-HELDER-A-02

7470 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1982-07-04
Oil and gasDevelopment

Q01-HELDER-A-02-SIDETRACK1

7793 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1988-01-06
Oil and gasDevelopment

Q01-HELDER-A-03

7471 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1982-08-06
Oil and gasDevelopment

Q01-HELDER-A-03-SIDETRACK1

7791 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1987-12-15
Oil and gasDevelopment

Q01-HELDER-A-04

7472 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1982-08-20
Oil and gasDevelopment

Q01-HELDER-A-04-SIDETRACK1

9326 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1986-12-04
Oil and gasDevelopment

Q01-HELDER-A-04-SIDETRACK2

9327 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1986-12-11
Oil and gasDevelopment

Q01-HELDER-A-04-SIDETRACK3

7740 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Unocal Netherlands B.V.Recorded spud date: 1986-12-04
Oil and gasDevelopment

Q01-HELDER-A-05

7473 · TNO / NLOG — Netherlands boreholes

Latitude / longitude (WGS84)52.920679 / 4.097089Operator in source snapshot: Union Oil Company of the NetherlandsRecorded spud date: 1982-10-01

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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