🛢️ GROVE 5892 31-33 5B

Oasis Petroleum North America, LLC (subsidiary of Chord Energy) · Mountrail County, ND · File #42648 · Generated 2026-02-13 12:33

API: 3306105641
Target Formation: Middle Bakken
Permit Explained: Partially

📋 Permit Cycle Assessment

The well file contains regulatory and technical documentation that directly justifies the permit approval. Commission Order No. 34892 stipulations on setbacks, pool definition, and operational conditions are the primary driver of permit approval and are explicitly stated in the permit record. The Bakken Setback Summary provides technical justification for the non-routine wet-shoe completion design. Pre-drill anti-collision analysis with documented 1.2 safety factor and survey protocols satisfies certification requirements. The waiver request for adjacent-operator notification (Order No. 31848) addresses a potential condition but was resolved by operator self-identity. However, the file does not contain the actual permit approval date or a regulator-issued approval letter explaining why this specific well geometry and location satisfy spacing unit requirements beyond the standing regulatory orders already cited. The justification is embedded in compliance with pre-existing orders rather than articulated in permit-cycle-specific correspondence.

🔍 Permit Cycle Signals (5)

Commission Order No. 34892 setback stipulation conditioning approval: 500' setback from north/south boundaries and 150' setback from east/west boundaries within 2560-acre spacing unit (Sections 33, 34, 35, 36, T158N, R92W)

Direct

📄 Permit Information / Stipulations section, NDIC Field Order Info
📅 Unknown (Missing confidence)

Directly conditions the permit approval via explicit regulatory order; establishes the geometric constraints that must be met for this specific well approval.

Bakken Setback Summary: East setback based on production liner cemented in lateral with wet shoe and ability to frac out shoe—establishing technical justification for departure from standard setback geometry

Supporting

📄 Permit Information / Stipulations section, Bakken Setback Summary Statement
📅 Unknown (Missing confidence)

Provides the technical rationale for the specific setback configuration approved in this permit; explains non-routine cement and completion design.

Cottonwood-Bakken Pool definition per regulatory order: interval from 50 feet above top of Bakken Formation to above top of Birdbear Formation

Direct

📄 Permit Information / Stipulations section, NDIC Field Order Info (pool definition)
📅 Unknown (Missing confidence)

Regulatory pool definition that bounds the target formation and spacing unit within which this well operates; foundational to permit jurisdiction.

Anti-collision analysis completed with 1.2 industry-standard separation safety factor maintained during intermediate sections; real-time corrected surveys every 93–100 feet; gamma ray signatures used for existing wellbore identification

Supporting

📄 Applicant submission (Chord Energy letter dated December 17, 2025) Anti-Collision Statement; Anticollision Report (December 8, 2025)
📅 2025-12-08 | Relative (Exact confidence)

Demonstrates compliance with pre-drill anti-collision requirements that condition approval; confirms operator has met certification and survey standards before spud.

Waiver request filed for adjacent-operator notification requirement (Order No. 31848) because Oasis Petroleum is operator of both the subject well and adjacent spacing unit

Direct

📄 Applicant submission (Chord Energy letter dated December 17, 2025)
📅 2025-12-17 (Exact confidence)

Addresses a regulatory notification condition tied to this permit; waiver was requested contemporaneous with application, eliminating a standard approval prerequisite.

📖 Historical Context (5)

Indirect heater exemption from setback (Case No. 28949, Order No. 31500) permits facility setback at 60 feet from wellhead and 21 feet from oil tank
📄 Facility Statement in applicant submission · 📅 Unknown
Non-routine facility exemption persists as an operational constraint on pad design and production equipment placement throughout well life; must be maintained in future compliance inspections.

Wet-shoe cement design with 400 feet of intentional uncemented annulus around liner toe and 7-barrel over-displacement for economic toe initiation
📄 Details of Standard Wet Shoe document and planning report · 📅 Unknown
Completion design creates a long-term operational and environmental liability; affects future workovers, abandonment protocols, and cement integrity monitoring requirements.

Federal mineral interest involvement: wells within 2560-acre spacing unit require coordination with BLM Dickinson office per DMR notification (January 14, 2026)
📄 Email from Nathaniel Erbele, ND DMR, to operator (1/14/2026) · 📅 Unknown
Federal permit compliance is ongoing requirement; operator must maintain valid federal APD and adhere to BLM conditions throughout drilling, completion, and production phases.

Diesel-based stimulation fluid prohibition: operator cannot use CAS compounds 68334-30-5, 68476-34-6, 68476-30-2, 68476-31-3, 8008-20-6 in hydraulic stimulation
📄 Applicant submission - Diesel Based Stimulation Fluids/Compounds section · 📅 Unknown
Permanent operational constraint on completion fluid selection; affects frac design, vendor qualification, and future stimulation treatments.

Licensed facilities mandate for dry cuttings disposal: operator must use one of nine listed facilities; cuttings must be hauled to closest available facility
📄 Applicant submission - Licensed Facilities for Solid Drill Cuttings Disposal section · 📅 Unknown
Ongoing waste management obligation affecting operational logistics and compliance audits; facility list binding for duration of drilling operations.

🔧 Operator Pattern

Oasis Petroleum (Chord Energy subsidiary) demonstrates multi-well pad development strategy with coordinated spacing unit control and self-operator continuity for adjacent wells (DUNLIN wells 31-33 2B through 6BX on same pad); standardized anti-collision protocols and design controls; proactive waiver and exemption management.
Five companion wells on GROVE FEDERAL 5892 PAD all operated by Oasis; consistent use of industry-standard 1.2 separation safety factor; advance filing of waiver for adjacent-operator notification; pre-submission of detailed well planning, anticollision analysis, and facility exemption documentation; coordinated federal mineral compliance notification.

Confidence: Medium
Permit approval date (07/25/2026 per file header) is explicitly stated; regulatory framework (Commission Orders 34892, 31848, 31500) and technical justifications (wet-shoe design, anti-collision analysis, setback geometry) are well-documented and directly support approval. However, no contemporaneous regulator approval letter or findings statement is present in the file. The explanation for approval rests on demonstrated compliance with pre-existing standing orders and satisfied technical prerequisites rather than a permit-cycle-specific regulatory determination. Anti-collision and waiver submissions are dated December 2025, placing them proximate to an inferred application date but the exact timing and permitting workflow are not explicit. Federal mineral involvement is confirmed by January 2026 DMR notification but federal APD status is not documented in this file.