BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T155N R91W sections 30, 31

Spacing unit11 wells allowed · order 35207Stanley-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R91W sections 30, 31
Pool
Stanley-Bakken
Zone
Zone XV
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
Lime Rock III-A
Unit id
dsu-24c67edd2b4174d2c6cf
Wells allowed by the latest linked order
11
Wells assigned to this unit
6
Pending permits inside
1
Balance under the allowance
+4
First linked order
May 21, 2009
Laterals that still fit (Nov 2026 method)
3 (2.87 two-mile equivalents)
Neighbourhood target density
8.65 two-mile laterals per 1,280 acres
Density drilled so far
5.34 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

HILL 31-30HREUM 31-30HGARFIELD 30-31HSTATE 30-31HCGB 30-31HNESSON 31-30HLUCKY 30-31-1TFHL1 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
HILL 31-30HLIME ROCK RESOURCES III-A, L.P.Inactive (IA)9,586 ft100%
REUM 31-30HLIME ROCK RESOURCES III-A, L.P.Active (A)9,498 ft100%
GARFIELD 30-31HLIME ROCK RESOURCES III-A, L.P.Active (A)9,354 ft100%
STATE 30-31HLIME ROCK RESOURCES III-A, L.P.Active (A)8,881 ft100%
CGB 30-31HLIME ROCK RESOURCES III-A, L.P.Active (A)6,853 ft100%
NESSON 31-30HLIME ROCK RESOURCES III-A, L.P.Active (A)6,004 ft100%
LUCKY 30-31-1TFHLLIME ROCK RESOURCES III-A, L.P.Active (A)5,172 ft48%

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 13085Case 11046Designated the spacing unitEOG RESOURCES, INC.
  2. Order 13107Case 11066Established the spacing unit, 2 wells allowedFIDELITY EXPL. & PROD. CO.
  3. Order 13531Case 11422Designated the spacing unitMUREX PETROLEUM CORP.
  4. Order 14091Case 11904Pooled all interests in the unitFIDELITY EXPL. & PROD. CO.
  5. Order 17074Case 14798Designated the spacing unit, 3 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  6. Order 17080Case 14804Established the spacing unit, 3 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  7. Order 18016Case 15761Designated the spacing unit, 4 wells allowedARSENAL ENERGY USA INC.
  8. Order 19116Case 16846Established the spacing unit, 4 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  9. Order 21772Case 19470Designated the spacing unit, 6 wells allowedHESS CORP.
  10. Order 22283Case 19976Established the spacing unit, 6 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  11. Order 26353Case 24010Designated the spacing unit, 11 wells allowedEOG RESOURCES, INC.
  12. Order 26753Case 24386Established the spacing unit, 11 wells allowedLIME ROCK RESOURCES III-A, LP

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.