BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T155N R93W sections 2, 3, 10, 11

Spacing unit2 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T155N R93W sections 2, 3, 10, 11
Pool
Alger-Bakken
Zone
Zone XXV
County
Mountrail County
Surveyed wells inside
19
Most wells operated by
Devon Energy
Unit id
dsu-0569424b83b2ff76e4d3
Wells allowed by the latest linked order
2
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-17
First linked order
Dec 6, 2022
Laterals that still fit (Nov 2026 method)
2 (2.1 two-mile equivalents)
Neighbourhood target density
8.81 two-mile laterals per 1,280 acres
Density drilled so far
6.5 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

ESTHER HYNEK 10-11 #3HESTHER HYNEK 10-11 6TFHESTHER HYNEK 10-11 #4TFHESTHER HYNEK 10-11F 8HESTHER HYNEK 3-2F XN 1HESTHER HYNEK 10-11 2TFHESTHER HYNEK 10-11F 9TFHESTHER HYNEK 10-11 7HESTHER HYNEK 10-11 1-HHYNEK 2 1HVACHAL 3-34 #5TFHVACHAL 3-34 #8TFHVACHAL 3-34 2TFHVACHAL 3-34 #6HVACHAL 3-34 #7HVACHAL 3-34 1-HVACHAL 3-34 #3HVACHAL 3-34 #4TFHVACHAL 3-34F XW #1H1 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
ESTHER HYNEK 10-11 #3HDEVON ENERGY WILLISTON, L.L.C.Active (A)12,225 ft100%
ESTHER HYNEK 10-11 6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,764 ft100%
ESTHER HYNEK 10-11 #4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,097 ft100%
ESTHER HYNEK 10-11F 8HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,869 ft100%
ESTHER HYNEK 3-2F XN 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,841 ft100%
ESTHER HYNEK 10-11 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,786 ft100%
ESTHER HYNEK 10-11F 9TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,707 ft100%
ESTHER HYNEK 10-11 7HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,462 ft100%
ESTHER HYNEK 10-11 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,434 ft100%
HYNEK 2 1HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)5,115 ft100%
VACHAL 3-34 #5TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)4,942 ft50%
VACHAL 3-34 #8TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)4,825 ft49%
VACHAL 3-34 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)4,721 ft48%
VACHAL 3-34 #6HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,596 ft48%
VACHAL 3-34 #7HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,556 ft47%
VACHAL 3-34 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,459 ft47%
VACHAL 3-34 #3HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,423 ft47%
VACHAL 3-34 #4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)4,396 ft47%
VACHAL 3-34F XW #1HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,221 ft43%

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 32140Case 29570Designated the spacing unit, 2 wells allowedHESS BAKKEN INVESTMENTS II, LLC
  2. Order 32203Case 29666Established the spacing unit, 2 wells allowedGRAYSON MILL OPERATING, LLC
  3. Order 32208Case 29671Pooled all interests in the unitGRAYSON MILL OPERATING, 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

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