BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T153N R92W sections 12, 13

Spacing unit11 wells allowed · order 35866Sanish-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T153N R92W sections 12, 13
Pool
Sanish-Bakken
Zone
Zone XXII
County
Mountrail County
Surveyed wells inside
9
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-b525fa7c4087cdfa13b1
Wells allowed by the latest linked order
11
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
+2
First linked order
Sep 22, 2008
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
9.07 two-mile laterals per 1,280 acres
Density drilled so far
7.57 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

FLADELAND 11-12TFHBIGFOOT 42-26TFHUFLADELAND 11-12HFLADELAND 21-12HFLADELAND 31-12TFHELLA FLADELAND 12-12TFHLIONELD FLADELAND 12-12HSMITH 41-12HLittlefield 11-21TFHU1 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
FLADELAND 11-12TFHWHITING OIL AND GAS CORPORATIONActive (A)14,662 ft100%
BIGFOOT 42-26TFHUWHITING OIL AND GAS CORPORATIONActive (A)10,067 ft65%
FLADELAND 11-12HWHITING OIL AND GAS CORPORATIONActive (A)9,351 ft100%
FLADELAND 21-12HWHITING OIL AND GAS CORPORATIONAbandoned (AB)9,181 ft100%
FLADELAND 31-12TFHWHITING OIL AND GAS CORPORATIONActive (A)8,748 ft100%
ELLA FLADELAND 12-12TFHWHITING OIL AND GAS CORPORATIONActive (A)7,956 ft100%
LIONELD FLADELAND 12-12HWHITING OIL AND GAS CORPORATIONActive (A)7,614 ft100%
SMITH 41-12HWHITING OIL AND GAS CORPORATIONActive (A)7,066 ft100%
Littlefield 11-21TFHUWHITING OIL AND GAS CORPORATIONActive (A)4,727 ft32%

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 12258Case 10369Pooled all interests in the unitWHITING OIL & GAS CORP.
  2. Order 12257Case 10368Established the spacing unitWHITING OIL & GAS CORP.
  3. Order 12313Case 10417Designated the spacing unitFIDELITY EXPL & PROD CO.
  4. Order 13769Case 11628Designated the spacing unitWHITING OIL & GAS CORP.
  5. Order 13904Case 11743Designated the spacing unit, 4 wells allowedWHITING OIL & GAS CORP.
  6. Order 15653Case 13377Established the spacing unit, 6 wells allowedWHITING OIL & GAS CORP.
  7. Order 22761Case 20455Designated the spacing unit, 6 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  8. Order 22755Case 20449Established the spacing unit, 11 wells allowedWHITING OIL AND GAS CORP.
  9. Order 24251Case 21918Designated the spacing unit, 11 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  10. Order 31168Case 28626Designated the spacing unit, 9 wells allowedWHITING OIL AND GAS CORP.
  11. Order 31168Case 28626Listed the unit in a pool zone table, 11 wells allowedWHITING OIL AND GAS CORP.
  12. Order 31169Case 28627Designated the spacing unit, 9 wells allowedWHITING OIL AND GAS CORP.
  13. Order 31190Case 28647Designated the spacing unit, 11 wells allowedWHITING 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

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