BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

3,840-acre Bakken spacing unit

T155N R100W sections 1, 2, 11, 12, 13, 14

Spacing unitStony Creek-Bakken

Unit facts

Formation
Bakken
Acres
3,840
Type
Spacing unit
Land described
T155N R100W sections 1, 2, 11, 12, 13, 14
Pool
Stony Creek-Bakken
Zone
Zone XII
County
Williams County
Surveyed wells inside
17
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-acbfdb65ab136411d6a0
Laterals that still fit (Nov 2026 method)
3 (4.33 two-mile equivalents)
Neighbourhood target density
8.16 two-mile laterals per 1,280 acres
Density drilled so far
4.52 per 1,280 acres

Room to drill: 3 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

SYVERSON 1-12 3TFHMastiff 22-11 4H XESYVERSON 1-12 4HSYVERSON 1-12 #5TFHSYVERSON 1-12 #8H-RSYVERSON 1-12 #6HSYVERSON 1-12 #1-HSYVERSON 1-12 2TFHSYVERSON 1-12 #7TFHSHEPHERD 3-11 2TFHSHEPHERD 3-11 3HSHEPHERD 3-11 4TFHSHEPHERD 3-11 1HLION 1-14HWILDCAT 1-11HBENGAL 1-2HROBERT 1-13H1 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
SYVERSON 1-12 3TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)12,406 ft100%
Mastiff 22-11 4H XEZavanna Energy Operating, LLCActive (A)10,357 ft100%
SYVERSON 1-12 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,134 ft100%
SYVERSON 1-12 #5TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,902 ft100%
SYVERSON 1-12 #8H-RDEVON ENERGY WILLISTON, L.L.C.Active (A)9,897 ft100%
SYVERSON 1-12 #6HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,545 ft100%
SYVERSON 1-12 #1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,475 ft100%
SYVERSON 1-12 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,393 ft100%
SYVERSON 1-12 #7TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,149 ft100%
SHEPHERD 3-11 2TFHZavanna Energy Operating, LLCActive (A)7,512 ft71%
SHEPHERD 3-11 3HZavanna Energy Operating, LLCActive (A)7,295 ft83%
SHEPHERD 3-11 4TFHZavanna Energy Operating, LLCActive (A)7,239 ft96%
SHEPHERD 3-11 1HZavanna Energy Operating, LLCActive (A)7,058 ft61%
LION 1-14HZavanna Energy Operating, LLCActive (A)6,878 ft100%
WILDCAT 1-11HZavanna Energy Operating, LLCActive (A)5,980 ft100%
BENGAL 1-2HZavanna Energy Operating, LLCActive (A)5,679 ft100%
ROBERT 1-13HCONTINENTAL RESOURCES, INC.Active (A)4,375 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 32691Case 30081Established the spacing unitZAVANNA, LLC
  2. Order 32717Case 30107Designated the spacing unitZAVANNA, LLC
  3. Order 35354Case 32515Designated the spacing unitZAVANNA, 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

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