BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T155N R91W sections 1, 12

Spacing unit4 wells allowed · order 35207Stanley-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R91W sections 1, 12
Pool
Stanley-Bakken
Zone
Zone VIII
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
STEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLC
Unit id
dsu-c68a2e9655cb53e5b8cb
Wells allowed by the latest linked order
4
Wells assigned to this unit
2
Pending permits inside
0
Balance under the allowance
-3
First linked order
Jan 17, 2023
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
7.04 two-mile laterals per 1,280 acres
Density drilled so far
5.03 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

CABOT 15591-0112-2HCABOT 15591-0112-3HCABOT 15591-0112-5HCABOT 15591-0112-4HGJOA LYNN 100-12HPURCELL 1-01HGreenbrier 15591W-0211- 7HSL1 mi

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

Wells inside the unit

WellOperatorStatusLateral inside
CABOT 15591-0112-2HSTEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLCActive (A)10,357 ft100%
CABOT 15591-0112-3HSTEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLCActive (A)10,326 ft100%
CABOT 15591-0112-5HSTEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLCActive (A)10,284 ft100%
CABOT 15591-0112-4HSTEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLCActive (A)10,208 ft100%
GJOA LYNN 100-12HSTEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLCActive (A)5,937 ft100%
PURCELL 1-01HEOG RESOURCES, INC.Active (A)4,490 ft100%
Greenbrier 15591W-0211- 7HSLSTEPHENS WILLISTON, LLC DBA SEG WILLISTON, LLCActive (A)1,703 ft17%

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 32218Case 29633Established the spacing unit, 4 wells allowedSEG WILLISTON, LLC
  2. Order 33492Case 30832Pooled all interests in the unitSEG WILLISTON, 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

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