BBakken SubsurfaceNorth Dakota well index

Spacing unit · McKenzie County

1,280-acre Bakken spacing unit

T149N R95W sections 26, 35

Spacing unit24 wells allowed · order 27826Grail-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T149N R95W sections 26, 35
Pool
Grail-Bakken
Zone
Zone V
County
McKenzie County
Surveyed wells inside
11
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-c85db520d571a12b78c9
Wells allowed by the latest linked order
24
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
+13
First linked order
Nov 13, 2009
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
10.35 two-mile laterals per 1,280 acres
Density drilled so far
9.64 per 1,280 acres

Room to drill: 0 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

TAT 2-35-26THTAT 3-35-26BHTAT 4-35-26BHTAT 1-35-26THTAT 5-35-26THTAT 2-35-26BHTAT 5-35-26BHTAT 1-35-26BHTAT 4-35-26THTAT 13-35/26HVEEDER 27-34-26-35LL1 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
TAT 2-35-26THOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,995 ft100%
TAT 3-35-26BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,920 ft100%
TAT 4-35-26BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,910 ft100%
TAT 1-35-26THOASIS PETROLEUM NORTH AMERICA LLCPlugged and abandoned (PA)9,869 ft100%
TAT 5-35-26THOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,840 ft100%
TAT 2-35-26BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,820 ft100%
TAT 5-35-26BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,807 ft100%
TAT 1-35-26BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,801 ft100%
TAT 4-35-26THOASIS PETROLEUM NORTH AMERICA LLCInactive (IA)9,748 ft100%
TAT 13-35/26HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,509 ft100%
VEEDER 27-34-26-35LLOASIS PETROLEUM NORTH AMERICA LLCActive (A)3,632 ft37%

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 13673Case 11550Designated the spacing unit
  2. Order 15499Case 13226Pooled all interests in the unitHELIS OIL & GAS CO., LLC
  3. Order 15860Case 13584Designated the spacing unitHELIS OIL AND GAS CO., LLC,
  4. Order 17432Case 15187Established the spacing unit, 3 wells allowedHELIS OIL AND GAS CO., LLC
  5. Order 21115Case 18814Designated the spacing unit, 8 wells allowedHELIS OIL AND GAS CO., LLC
  6. Order 21819Case 19517Established the spacing unit, 8 wells allowedQEP ENERGY CO.
  7. Order 22533Case 20227Designated the spacing unit, 10 wells allowedQEP ENERGY CO.
  8. Order 23025Case 20720Established the spacing unit, 10 wells allowedQEP ENERGY CO.
  9. Order 25326Case 22993Designated the spacing unit, 24 wells allowedQEP ENERGY CO.

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

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