BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T156N R101W sections 4, 9

Spacing unit2 wells allowed · order 36005Tyrone-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T156N R101W sections 4, 9
Pool
Tyrone-Bakken
Zone
Zone II
County
Williams County
Surveyed wells inside
5
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-1df035cb6dc23be94189
Wells allowed by the latest linked order
2
Wells assigned to this unit
2
Pending permits inside
0
Balance under the allowance
-3
First linked order
Mar 29, 2010
Laterals that still fit (Nov 2026 method)
3 (3 two-mile equivalents)
Neighbourhood target density
7.36 two-mile laterals per 1,280 acres
Density drilled so far
4.8 per 1,280 acres

Room to drill: 3 laterals still fit at the density this unit's neighbourhood has reached (the larger of the 75th percentile of mature units within 10 miles and the median of units drilled in the last three years), placed in the widest gaps with the setbacks of the November 2026 method. Machine-made and geometric: not a commitment to drill, not a permit, order, lease or plan, and no economics. Land is counted once, so a unit under a larger unit shows only what the larger one left. How it is computed.

Map

ORCAS STATE 5601 13-4 3BORCAS STATE 5601 13-4 2BORCAS STATE 5601 13-4 4BBERGER 5601 13-4 2BBERGER 156-101-9-4-1H1 mi

DMR footprint (NAD83) with the published surface locations of its wells. Laterals run under the unit; pads often sit on a neighbouring section.

Open in the regional 3D viewerFootprint, wells and production playbackSee on the cases and orders mapHistorical spacing units by order

Wells inside the unit

WellOperatorStatusLateral inside
ORCAS STATE 5601 13-4 3BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,868 ft51%
ORCAS STATE 5601 13-4 2BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,827 ft51%
ORCAS STATE 5601 13-4 4BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,612 ft50%
BERGER 5601 13-4 2BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,313 ft100%
BERGER 156-101-9-4-1HENERPLUS RESOURCES USA CORPORATIONActive (A)10,141 ft100%

Surveyed Bakken-system laterals with at least 660 ft of plan-view length inside the published footprint. Geometric membership, not a legal assignment; a lateral can cross several units.

Order history

  1. Order 14416Case 12164Established the spacing unit, 1 well allowedGOLDEN EYE RESOURCES, LLC
  2. Order 17919Case 15664Established the spacing unit, 1 well allowedPetro-Hunt
  3. Order 17919Case 15664Designated the spacing unitPetro-Hunt
  4. Order 18172Case 15171Designated the spacing unit
  5. Order 21450Case 19147Pooled all interests in the unitLIBERTY RESOURCES LLC
  6. Order 21127Case 18826Designated the spacing unit, 9 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  7. Order 22661Case 20354Established the spacing unit, 9 wells allowedLIBERTY RESOURCES LLC
  8. Order 35420Case 32574Established the spacing unit, 2 wells allowedOASIS PETROLEUM NORTH AMERICA LLC

Facts extracted from signed NDIC orders whose land description covers this footprint; machine-extracted and not human-reviewed. A stated allowance is what that order allowed, not proof that it governs today.

Overlapping units

4 other units share a surveyed well with this one; overlapping units are not additive.