BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R94W sections 17, 20

Spacing unit9 wells allowed · order 33775Bailey-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R94W sections 17, 20
Pool
Bailey-Bakken
Zone
Zone X
County
Dunn County
Surveyed wells inside
8
Most wells operated by
Burlington / Marathon
Unit id
dsu-8f6de06cdb52addc0077
Wells allowed by the latest linked order
9
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
+1
First linked order
Feb 15, 2007
Laterals that still fit (Nov 2026 method)
2 (1.9 two-mile equivalents)
Neighbourhood target density
10.28 two-mile laterals per 1,280 acres
Density drilled so far
7.6 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

LEAH 14-20TFHLOUISE 34-20TFHBETH 24-20TFHSANDRA 44-20TFHPEGGY 24-20HWHALEN 14-20HC.O. 34-20HOLSON 14-20H1 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
LEAH 14-20TFHMARATHON OIL COMPANYActive (A)10,253 ft100%
LOUISE 34-20TFHMARATHON OIL COMPANYActive (A)10,223 ft100%
BETH 24-20TFHMARATHON OIL COMPANYActive (A)10,203 ft100%
SANDRA 44-20TFHMARATHON OIL COMPANYActive (A)10,164 ft100%
PEGGY 24-20HMARATHON OIL COMPANYActive (A)10,161 ft100%
WHALEN 14-20HMARATHON OIL COMPANYActive (A)10,151 ft100%
C.O. 34-20HMARATHON OIL COMPANYActive (A)9,465 ft100%
OLSON 14-20HMARATHON OIL COMPANYActive (A)8,882 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 10957Case 9334Designated the spacing unitPETROLEUM DEVELOPMENT CORP.
  2. Order 13068Case 11036Pooled all interests in the unitMARATHON OIL CO.
  3. Order 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  4. Order 14362Case 12112Designated the spacing unit, 2 wells allowedMARATHON OIL CO. TO AMEND THE APPLICABLE ORDERS
  5. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18849Case 15332Designated the spacing unit, 4 wells allowed
  7. Order 18404Case 16140Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  8. Order 20313Case 18044Designated the spacing unit, 7 wells allowedBURLINGTON RESOURCES OIL & GAS CO. LP
  9. Order 29317Case 26875Designated the spacing unit, 8 wells allowedMARATHON OIL CO.
  10. Order 29339Case 26897Established the spacing unit, 8 wells allowedMARATHON OIL CO.
  11. Order 30792Case 28334Designated the spacing unit, 9 wells allowedMARATHON OIL CO.
  12. Order 30823Case 28365Established the spacing unit, 9 wells allowedMARATHON OIL 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

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