BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R94W sections 1, 12

Spacing unit8 wells allowed · order 33775Bailey-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R94W sections 1, 12
Pool
Bailey-Bakken
Zone
Zone IX
County
Dunn County
Surveyed wells inside
9
Most wells operated by
Burlington / Marathon
Unit id
dsu-70c0862dc1d597fdc272
Wells allowed by the latest linked order
8
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)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.69 two-mile laterals per 1,280 acres
Density drilled so far
9.17 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. 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

BUEHNER 34-12HEMIL 24-12TFHEmiley 14-12TFHKLOSTER 24-12HRITTER 34-12TFHStein 14-12TFHEbert 14-12HARKIN 44-12TFHBUEHNER 44-12H1 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
BUEHNER 34-12HMARATHON OIL COMPANYActive (A)17,249 ft100%
EMIL 24-12TFHMARATHON OIL COMPANYActive (A)10,335 ft100%
Emiley 14-12TFHMARATHON OIL COMPANYActive (A)10,290 ft100%
KLOSTER 24-12HMARATHON OIL COMPANYActive (A)10,258 ft100%
RITTER 34-12TFHMARATHON OIL COMPANYActive (A)10,186 ft100%
Stein 14-12TFHMARATHON OIL COMPANYActive (A)10,168 ft100%
Ebert 14-12HMARATHON OIL COMPANYActive (A)10,096 ft100%
ARKIN 44-12TFHMARATHON OIL COMPANYActive (A)10,001 ft98%
BUEHNER 44-12HMARATHON OIL COMPANYActive (A)9,126 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 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  3. Order 14362Case 12112Designated the spacing unit, 2 wells allowedMARATHON OIL CO. TO AMEND THE APPLICABLE ORDERS
  4. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  5. Order 18849Case 15332Designated the spacing unit, 4 wells allowed
  6. Order 18404Case 16140Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 20313Case 18044Designated the spacing unit, 7 wells allowedBURLINGTON RESOURCES OIL & GAS CO. LP
  8. Order 31129Case 28587Designated the spacing unit, 8 wells allowedMARATHON OIL CO.
  9. Order 31151Case 28609Established the spacing unit, 8 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.