BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T154N R92W section 31

Spacing unit2 wells allowed · order 35866Sanish-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T154N R92W section 31
Pool
Sanish-Bakken
Zone
Zone III
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-8a34221f693dd8293c42
Wells allowed by the latest linked order
2
Wells assigned to this unit
2
Pending permits inside
0
Balance under the allowance
-8
First linked order
Jun 9, 2008
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
10.02 two-mile laterals per 1,280 acres
Density drilled so far
9.16 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. 1 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

FLADELAND 44-31HDE YK Federal 12-33TFHDE YK 12-33-2TFHDE YK 12-33-2HDE YK Federal 12-33HDE Bud 44-32-4TFHDE Bud 44-32-5HDE Bud 44-32-4HFLADELAND 34-31HSATTERTHWAITE 14-35TFHU1 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 44-31HWHITING OIL AND GAS CORPORATIONAbandoned (AB)5,381 ft100%
DE YK Federal 12-33TFHWHITING OIL AND GAS CORPORATIONActive (A)5,054 ft50%
DE YK 12-33-2HWHITING OIL AND GAS CORPORATIONActive (A)5,052 ft49%
DE YK 12-33-2TFHWHITING OIL AND GAS CORPORATIONActive (A)5,052 ft48%
DE YK Federal 12-33HWHITING OIL AND GAS CORPORATIONActive (A)5,051 ft49%
DE Bud 44-32-4TFHWHITING OIL AND GAS CORPORATIONActive (A)5,034 ft50%
DE Bud 44-32-5HWHITING OIL AND GAS CORPORATIONActive (A)5,034 ft49%
DE Bud 44-32-4HWHITING OIL AND GAS CORPORATIONActive (A)5,032 ft49%
FLADELAND 34-31HWHITING OIL AND GAS CORPORATIONAbandoned (AB)3,677 ft100%
SATTERTHWAITE 14-35TFHUWHITING OIL AND GAS CORPORATIONActive (A)3,581 ft24%

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 11952Case 10019Established the spacing unit, 1 well allowedFIDELITY EXPL. & PROD. CO.
  2. Order 12311Case 10415Pooled all interests in the unitFIDELITY EXPL & PROD CO.
  3. Order 17398Case 15150Listed the unit in a pool zone table, 2 wells allowedSLAWSON ENERGY INC.
  4. Order 19115Case 16845Established the spacing unit, 2 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.

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

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