BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T156N R100W sections 27, 34

Spacing unit8 wells allowed · order 35871East Fork-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T156N R100W sections 27, 34
Pool
East Fork-Bakken
Zone
Zone IV
County
Williams County
Surveyed wells inside
9
Most wells operated by
Devon Energy
Unit id
dsu-2be5247776de8f273685
Wells allowed by the latest linked order
8
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
-1
First linked order
Jun 9, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.81 two-mile laterals per 1,280 acres
Density drilled so far
8.19 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

IRGENS 27-34 #6TFHIRGENS 27-34 1-HIRGENS 27-34 4TFHIRGENS 27-34 3HIRGENS 27-34 #2TFHIRGENS 27-34 #5HIRGENS 27-34 #7TFHIRGENS 27-34 #8HJENNIFER 26-35 XW #1TFH1 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
IRGENS 27-34 #6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,967 ft100%
IRGENS 27-34 1-HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)10,780 ft100%
IRGENS 27-34 4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,968 ft100%
IRGENS 27-34 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,909 ft100%
IRGENS 27-34 #2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,645 ft100%
IRGENS 27-34 #5HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,583 ft100%
IRGENS 27-34 #7TFHDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)8,786 ft100%
IRGENS 27-34 #8HDEVON ENERGY WILLISTON, L.L.C.Active (A)8,445 ft100%
JENNIFER 26-35 XW #1TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)8,218 ft83%

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 14702Case 12446Established the spacing unit, 1 well allowedBRIGHAM OIL & GAS, L.P.
  2. Order 16104Case 13820Established the spacing unit, 3 wells allowedBRIGHAM OIL & GAS, L.P.
  3. Order 15377Case 13109Established the spacing unit, 3 wells allowed
  4. Order 17370Case 15122Pooled all interests in the unitBRIGHAM OIL & GAS, L.P.
  5. Order 18011Case 15756Designated the spacing unit, 7 wells allowedNEWFIELD PRODUCTION CO.
  6. Order 24328Case 21995Established the spacing unit, 8 wells allowed
  7. Order 23697Case 21380Designated the spacing unit, 8 wells allowedCONTINENTAL RESOURCES, INC.

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.