File #42739 | Oasis Petroleum North America LLC | Mountrail County
API
3306105656
Target Formation
Middle Bakken
Permit Explained
Yes
Permit Cycle Assessment
The permit approval dated 2026-02-27 is contemporaneously supported by anti-collision analysis (2025-12-02), surface use agreement affidavit (2026-02-26), and off-spacing notification waiver request (2026-01-06). Commission Order No. 34892 conditions approval on setbacks directly tied to the well's wet-shoe completion design, documented in the submitted horizontal drill plan. Anti-collision risk (Level 3 separation to adjacent DUNLIN 5892 31-33 4B) is mitigated through industry-standard separation factors and survey frequency protocols. The off-spacing wellbore geometry and reduced west setback are structurally justified by the production liner design and surface use agreement, respectively. All permit conditions reflect evaluated site-specific geometry and operational controls, not routine APD boilerplate.
Permit Cycle Signals (4)
Commission Order No. 34892 conditions approval with specific setback requirements: 500' setback from north & south boundaries, 150' setback from east & west boundaries within the 2560-acre spacing unit. West setback based on production liner cemented with wet shoe and frac-out capability. (2026-02-27)
Non-routine setback variance justified by completion design (wet shoe configuration). Directly conditions this permit's approval and differentiates from standard horizontal drilling approvals.
Anti-collision statement submitted and evaluated. Operator reviewed wells within 500' of proposed wellbore. Minimum separation factor of 1.254 (Level 3 warning) identified with DUNLIN 5892 31-33 4B. Industry standard 1.2 separation safety factor maintained during drilling. (2025-12-02)
Non-routine collision risk documented. Level 3 warning indicates close approach to adjacent well. Conditioning measure required for this specific well geometry and pad layout.
Surface Use Agreement required and affirmed. Oasis Petroleum as operator of pad location (NW1/4 SW1/4 Section 33) has executed SUA with surface owner (Roberta L. Rystedt). Off-spacing drilling requires landowner awareness per Order 31973 policy. (2026-01-06)
Off-spacing wells (Dunlin wellbore enters Bakken outside target spacing unit) require documented surface use agreement. Waiver on adjacent operator notification granted because Oasis is operator of both units.
Wet shoe production liner design with frac-out capability. 4.5-inch P-110 liner from 9191' to 30665' MD cemented to allow uncemented annulus (~400') at toe for stage 1 perforation initiation. Design explicitly cited in permit conditions as justification for west setback exemption. (Unknown)
Completion design directly justifies regulatory departure (reduced west setback). Non-standard configuration permitting closer-to-boundary placement.
Historical Non-Routine Signals (3)
Cores and samples collection requirement. Operator must collect sample cuttings from Base of Last Charles Salt at 30' intervals (vertical/build) and 200' intervals (horizontal). Samples due within 30 days; any cores due within 180 days to ND Geological Survey Core Library. Violations subject to civil penalty up to $12,500 per offense (NDAC 38-08-16). (N/A)
Standing operational obligation that persists throughout drilling and post-drilling phases. Failure to submit samples/cores on schedule triggers regulatory penalty exposure. Impacts well record completeness and state repository obligations.
Filter sock disposal container requirement. Covered, leak-proof container with placard required on site from spud through completion and flow-back whenever filtration operations occur. Non-compliance with NDAC 43-02-03-19.2 effective 2014-06-01. Operator may waive via Sundry Notice if no filtration system used. (N/A)
Ongoing site management requirement throughout drilling, completion, and flow-back phases. Affects waste disposal protocols and environmental compliance. Non-compliance constitutes violation of solid waste transport permitting requirements under ND Department of Environmental Quality oversight.
Diesel-based stimulation fluid prohibition. Operator has committed not to use diesel-based compounds (CAS numbers 68334-30-5, 68476-34-6, 68476-30-2, 68476-31-3, 8008-20-6) in hydraulic stimulation fluids. Stated in Horizontal Drill Plan section 10 and Facility Statement. (N/A)
Operational constraint on completion and stimulation execution. Restricts chemical selection and fracturing design options. Persists through well completion phase and affects vendor specifications and frac design approvals.
Historical Operator Profile
Total Wells:N/A
Active Wells:N/A
Notable Patterns:None identified
Confidence Assessment
Level: High Rationale: Well file contains complete permit approval documentation with explicit stipulations, contemporaneous anti-collision analysis, surface use agreement, off-spacing waiver request, and detailed horizontal drill plan. Permit approval date (2026-02-27) is anchored to supporting technical submissions dated within 2 months prior. No missing critical dates in permit-cycle signals. OCR quality is sufficient for regulatory clause extraction. Non-routine signals (wet shoe design, anti-collision Level 3 warning, off-spacing requirement, setback exemption) are clearly documented and cross-referenced between permit conditions and technical plans.