BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T156N R101W sections 16, 21

Spacing unit3 wells allowed · order 36005Tyrone-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T156N R101W sections 16, 21
Pool
Tyrone-Bakken
Zone
Zone III
County
Williams County
Surveyed wells inside
6
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-be2b137ffc0e43be0e15
Wells allowed by the latest linked order
3
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-3
First linked order
Mar 29, 2010
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
7.46 two-mile laterals per 1,280 acres
Density drilled so far
5.76 per 1,280 acres

Room to drill: 2 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 4BORCAS STATE 5601 13-4 3BORCAS STATE 5601 13-4 2BORCAS STATE 5601 13-16 #3TAUTUMN WIND STATE 5601 14-16BORCAS STATE 5601 13-16H1 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 4BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,482 ft50%
ORCAS STATE 5601 13-4 3BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,419 ft49%
ORCAS STATE 5601 13-4 2BOASIS PETROLEUM NORTH AMERICA LLCDrilling (DRL)10,418 ft49%
ORCAS STATE 5601 13-16 #3TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,209 ft100%
AUTUMN WIND STATE 5601 14-16BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,665 ft100%
ORCAS STATE 5601 13-16HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,438 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 14355Case 12105Established the spacing unit, 1 well allowedOASIS PETROLEUM NORTH AMERICA LLC
  2. Order 17919Case 15664Established the spacing unit, 1 well allowedPetro-Hunt
  3. Order 17919Case 15664Designated the spacing unitPetro-Hunt
  4. Order 18172Case 15171Established the spacing unit, 4 wells allowed
  5. Order 19742Case 17472Pooled all interests in the unitOASIS PETROLEUM NORTH AMERICA LLC
  6. Order 21127Case 18826Established the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  7. Order 23166Case 20860Designated the spacing unit, 12 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  8. Order 23797Case 21455Established the spacing unit, 12 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  9. Order 35420Case 32574Established the spacing unit, 3 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.