BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T155N R93W sections 21, 28

Spacing unit10 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R93W sections 21, 28
Pool
Alger-Bakken
Zone
Zone XV
County
Mountrail County
Surveyed wells inside
12
Most wells operated by
Hess / Chevron
Unit id
dsu-3f150b57f4c116779367
Wells allowed by the latest linked order
10
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
-2
First linked order
Oct 17, 2008
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.98 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

EN-DOBROVOLNY-155-93- 2128H-1EN-DOBROVOLNY-155-93- 2128H-2EN-DOBROVOLNY-155-93- 2128H-3EN-DOBROVOLNY- 155-93-2821H-8EN-DOBROVOLNY- 155-93-2128H-7EN-DOBROVOLNY- 155-93-2128H-4EN-DOBROVOLNY- 155-93-2128H-6EN-DOBROVOLNY- 155-93-2128H-5EN-L CVANCARA-LS- 155-93-2826H-1EN-Dobrovolny-LE- 155-93-28H-1EN-Dobrovolny-LE- 155-93-21H-1BURES 20-29 XE 1H1 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
EN-DOBROVOLNY-155-93- 2128H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)17,537 ft100%
EN-DOBROVOLNY-155-93- 2128H-2HESS BAKKEN INVESTMENTS II, LLCAbandoned (AB)10,164 ft100%
EN-DOBROVOLNY-155-93- 2128H-3HESS BAKKEN INVESTMENTS II, LLCAbandoned (AB)10,027 ft100%
EN-DOBROVOLNY- 155-93-2821H-8HESS BAKKEN INVESTMENTS II, LLCActive (A)9,646 ft100%
EN-DOBROVOLNY- 155-93-2128H-7HESS BAKKEN INVESTMENTS II, LLCActive (A)9,562 ft100%
EN-DOBROVOLNY- 155-93-2128H-4HESS BAKKEN INVESTMENTS II, LLCActive (A)9,527 ft100%
EN-DOBROVOLNY- 155-93-2128H-6HESS BAKKEN INVESTMENTS II, LLCActive (A)9,518 ft100%
EN-DOBROVOLNY- 155-93-2128H-5HESS BAKKEN INVESTMENTS II, LLCAbandoned (AB)9,078 ft100%
EN-L CVANCARA-LS- 155-93-2826H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)5,123 ft33%
EN-Dobrovolny-LE- 155-93-28H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)4,738 ft100%
EN-Dobrovolny-LE- 155-93-21H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)1,010 ft20%
BURES 20-29 XE 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)969 ft10%

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 12442Case 10525Established the spacing unitBRIGHAM OIL & GAS, L.P.
  2. Order 12492Case 10560Designated the spacing unitOASIS PETROLEUM NORTH AMERICA LLC
  3. Order 14346Case 12096Pooled all interests in the unitHESS CORP.
  4. Order 15116Case 12849Designated the spacing unitEOG RESOURCES, INC.
  5. Order 15679Case 13403Established the spacing unit, 3 wells allowedHESS CORP.
  6. Order 15374Case 13106Designated the spacing unit, 3 wells allowedEOG RESOURCES, INC.
  7. Order 19146Case 16878Established the spacing unit, 6 wells allowedHESS CORP.
  8. Order 20085Case 17816Designated the spacing unit, 10 wells allowedWHITING OIL & GAS CORP.
  9. Order 20925Case 18623Established the spacing unit, 10 wells allowedHESS 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

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