BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T156N R101W sections 25, 36

Spacing unitEast Fork-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T156N R101W sections 25, 36
Pool
East Fork-Bakken
Zone
Zone X
County
Williams County
Surveyed wells inside
12
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-e638ed8cc1d438bc497f
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.48 two-mile laterals per 1,280 acres
Density drilled so far
6.04 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

MELISSA 31-30 #5TFHSTATE 34-36-2HMELISSA 31-30 #2HMELISSA 31-30 #3TFHSTATE 34-36-1HMELISSA 31-30 #4HSTATE 34-36-1TFHMELISSA 31-30 #1-HCORNABEAN 156-101-25-36-1HMELISSA 31-30 #7TFHSTATE 34-36-2TFHMELISSA 31-30 #6H1 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
MELISSA 31-30 #5TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)13,782 ft100%
STATE 34-36-2HWHITING OIL AND GAS CORPORATIONActive (A)12,148 ft100%
MELISSA 31-30 #2HDEVON ENERGY WILLISTON, L.L.C.Active (A)11,305 ft100%
MELISSA 31-30 #3TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,840 ft100%
STATE 34-36-1HWHITING OIL AND GAS CORPORATIONActive (A)10,655 ft100%
MELISSA 31-30 #4HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,043 ft100%
STATE 34-36-1TFHWHITING OIL AND GAS CORPORATIONActive (A)9,825 ft100%
MELISSA 31-30 #1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,577 ft100%
CORNABEAN 156-101-25-36-1HWHITING OIL AND GAS CORPORATIONActive (A)9,404 ft100%
MELISSA 31-30 #7TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,386 ft100%
STATE 34-36-2TFHWHITING OIL AND GAS CORPORATIONActive (A)9,366 ft100%
MELISSA 31-30 #6HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,269 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 27901Case 25498Established the spacing unitSTATOIL OIL AND GAS LP
  2. Order 27955Case 25546Pooled all interests in the unitSTATOIL OIL & GAS LP
  3. Order 28664Case 26248Designated the spacing unitWHITING OIL AND GAS CORP.
  4. Order 35871Case 32942Designated the spacing unitCONTINENTAL 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.