BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T153N R92W section 25

Spacing unit11 wells allowed · order 35866Sanish-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T153N R92W section 25
Pool
Sanish-Bakken
Zone
Zone XXIII
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-e838c0c76691a02e7cad
Wells allowed by the latest linked order
11
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
+4
First linked order
Mar 23, 2007
Laterals that still fit (Nov 2026 method)
1 (1.02 two-mile equivalents)
Neighbourhood target density
9.15 two-mile laterals per 1,280 acres
Density drilled so far
5.7 per 1,280 acres

Room to drill: 1 lateral 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. 2 more would fit the density but not the spacing rule. 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

PEERY STATE 11-25HPEERY STATE 21-25HPEERY STATE 21-25TFHPEERY STATE 22-25HPEERY STATE 12-25TFHLITTLEFIELD 11-30HPEERY STATE 11-25-2H1 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
PEERY STATE 11-25HWHITING OIL AND GAS CORPORATIONPlugged and abandoned (PA)23,596 ft100%
PEERY STATE 21-25HWHITING OIL AND GAS CORPORATIONActive (A)7,995 ft100%
PEERY STATE 21-25TFHWHITING OIL AND GAS CORPORATIONActive (A)7,924 ft100%
PEERY STATE 22-25HWHITING OIL AND GAS CORPORATIONActive (A)6,604 ft100%
PEERY STATE 12-25TFHWHITING OIL AND GAS CORPORATIONActive (A)6,160 ft100%
LITTLEFIELD 11-30HWHITING OIL AND GAS CORPORATIONActive (A)4,012 ft100%
PEERY STATE 11-25-2HWHITING OIL AND GAS CORPORATIONActive (A)3,545 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 11019Case 9387Pooled all interests in the unitWHITING OIL & GAS CORP.
  2. Order 11036Case 9402Designated the spacing unitMARATHON OIL CO.
  3. Order 13904Case 11743Designated the spacing unit, 4 wells allowedWHITING OIL & GAS CORP.
  4. Order 15653Case 13377Established the spacing unit, 6 wells allowedWHITING OIL & GAS CORP.
  5. Order 23196Case 20890Designated the spacing unit, 6 wells allowedMUREX PETROLEUM CORP.
  6. Order 22284Case 19977Designated the spacing unit, 8 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  7. Order 22284Case 19977Listed the unit in a pool zone table, 6 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  8. Order 22761Case 20455Designated the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  9. Order 23316Case 21010Designated the spacing unit, 8 wells allowedSLAWSON EXPLORATION CO., INC.
  10. Order 23552Case 21248Designated the spacing unit, 6 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  11. Order 22755Case 20449Established the spacing unit, 11 wells allowedWHITING OIL AND GAS CORP.
  12. Order 24251Case 21918Designated the spacing unit, 11 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  13. Order 31505Case 28954Designated the spacing unitWHITING OIL AND GAS CORP.

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

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