BBakken SubsurfaceNorth Dakota well index

Spacing unit · McKenzie County

1,280-acre Bakken spacing unit

T149N R95W sections 28, 33

Spacing unit24 wells allowed · order 27826Grail-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T149N R95W sections 28, 33
Pool
Grail-Bakken
Zone
Zone V
County
McKenzie County
Surveyed wells inside
12
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-a13d27cb5244b5024adf
Wells allowed by the latest linked order
24
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
+12
First linked order
Nov 13, 2009
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
10.26 two-mile laterals per 1,280 acres
Density drilled so far
11.43 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 1-33-28BHTAT 4-33-28T2HDRTAT 2-33-28-BHTAT 4-33-28BHTAT 33-28-34-27LLTAT 3-33-28THTAT 3-33-28BHTAT 8-33-28BHDTAT 2-33-28THTAT 5-33-28T2HDTAT 7-33-28BHDTAT 15-33/28H1 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 1-33-28BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,126 ft100%
TAT 4-33-28T2HDROASIS PETROLEUM NORTH AMERICA LLCActive (A)10,047 ft100%
TAT 2-33-28-BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,997 ft100%
TAT 4-33-28BHOASIS PETROLEUM NORTH AMERICA LLCAbandoned (AB)9,978 ft100%
TAT 33-28-34-27LLOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,940 ft97%
TAT 3-33-28THOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,934 ft100%
TAT 3-33-28BHOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,894 ft100%
TAT 8-33-28BHDOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,822 ft100%
TAT 2-33-28THOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,807 ft100%
TAT 5-33-28T2HDOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,797 ft100%
TAT 7-33-28BHDOASIS PETROLEUM NORTH AMERICA LLCInactive (IA)9,712 ft100%
TAT 15-33/28HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,434 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 13673Case 11550Designated the spacing unit
  2. Order 15500Case 13227Pooled 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.