🛢️ LC RAMBOUSEK 1-15H

Murfin Drilling Company, Inc. · Dunn County, ND · File #42019 · Generated 2026-08-28 04:09

API: 33-025-05093
Target Formation: Middle Bakken
Permit Explained: Yes

📋 Permit Cycle Assessment

The well file contains clear contemporaneous documentation explaining the permit cycle. The original APD issued 06/16/2025 (Permit Manager Todd Holweger) established the baseline terms including logging requirements, setback requirements (50 feet south, 150 feet north, 1220 feet east/west), and closed mud system. Two material modifications followed via approved sundries: (1) a completion method waiver dated 07/23/2025 requiring a 100-foot setback at the toe and wet shoe design with no frac-out capability, and (2) an open hole log waiver dated 06/17/2025 substituting offset well logging. The permit-cycle documents are time-bound to the approval dates and show regulator review and explicit approval language. Spud notification received 07/22/2025 confirms drilling commenced 07/21/2025, consistent with permit terms.

🔍 Permit Cycle Signals (4)

Sundry approval for completion method change requiring 100-foot setback at toe (wet shoe with no frac-out capability)

Direct

📄 Well Sundry Form, FORM ID: 259764, dated 07/23/2025 (Date Received); Reviewer comments by Emma Neigum
📅 07/23/2025 (Exact confidence)

Regulator-issued approval explicitly conditions the permit on a modified completion geometry (100-foot setback) tied to a non-routine wet shoe design that eliminates frac-out capability. This directly constrains lateral placement and perforation strategy.

Original drilling permit (APD) issued 06/16/2025 with stipulation requiring open hole logs (GR-CBL, porosity, resistivity) from KOP to base of surface casing

Supporting

📄 Permit Information document, Page 1 of 10, dated 06/16/2025; Approved by Todd Holweger (Permit Manager)
📅 06/16/2025 (Exact confidence)

Original permit imposed logging requirement as condition of approval. Waiver requested and approved separately (06/17/2025) allowing offset well logging instead, but original stipulation anchored the permit's technical oversight.

Waiver approval for open hole log requirement, contingent on offset well (LC Rambousek 1-9H, NDIC File 41983) logging instead

Direct

📄 Well Sundry Form, FORM ID: 253782, dated 06/17/2025 (Date Received); Reviewer Ross Edison, Geologist
📅 06/17/2025 (Exact confidence)

Regulator-approved waiver conditionally exempts this well from open hole logging but substitutes logging on same-pad offset well within one mile. This represents a material modification to permit terms prior to spud and directly affects compliance obligations.

Filter sock container waiver approved for all phases (drilling, completion, flow-back), eliminating requirement to stage container on-site except during filtration operations

Direct

📄 Well Sundry Form, FORM ID: 253785, dated 06/17/2025 (Date Received); Reviewer Dan Kuchar, Engineer Tech
📅 06/17/2025 (Exact confidence)

Regulator-approved waiver eliminates a standard permit condition. Operator justified via sundry that no filtration would occur until drill-out phase, reducing on-site waste management burden.

📖 Historical Context (4)

St. Anthony-Bakken Pool definition established at time of permit: accumulation from 50 feet above Bakken top to 100 feet below Three Forks top
📄 Permit Information, Page 2 of 10, Conditions of Approval section · 📅 06/16/2025
Pool definition is structural constraint persisting through well life, governing completion interval limits and inter-well spacing unit compliance. Required for future perforating, workover, and field delineation decisions.

Core and sample submission requirement: samples must be collected at 30-foot intervals (vertical/build) and 200-foot intervals (lateral), submitted to ND Geological Survey within 30 days of drilling completion
📄 Letter from ND Department of Mineral Resources dated 06/23/2025, signed by Ross Edison, Geologist and Mark F. Bohrer, Assistant Director · 📅 06/23/2025
Statutory compliance obligation (ND Century Code § 38-08-04, NDAC § 43-02-03-38.1) with civil penalty risk up to $12,500 per violation. Drilling end date 08/21/2025 establishes 30-day deadline (approximately 09/20/2025) for delivery to Grand Forks core library. Non-compliance creates regulatory exposure beyond operational phase.

Closed mud system with no cuttings pit requirement; cuttings disposal via 3-sided bin hauled to state-approved facility
📄 Permit Information, Page 2 of 10, Conditions of Approval section · 📅 06/16/2025
Operational constraint persisting through drilling and completion phases. Non-compliance creates environmental compliance risk and potential permit revocation grounds.

Prohibition on diesel-based hydraulic stimulation compounds (CAS Registry 68334-30-5, 68476-34-6, 68476-30-2, 68476-31-3, 8008-20-6)
📄 Permit Information, Page 7 of 10, Proposed Work section · 📅 06/16/2025
Fracture stimulation constraint limiting fluid chemistry options. Operative during completion/flowback phase (60-stage cemented lateral completion specified). Non-compliance exposes operator to permit modification or enforcement action.

🔧 Operator Pattern

Multi-well pad operator (four horizontal wells + one SWD on single pad: LC Rambousek 1-9H, 1-10H, 1-15H, 1-16H) with proactive regulatory engagement via multiple waivers and modifications
Murfin filed three substantive sundries pre-spud (completion method waiver, open hole log waiver, filter sock container waiver) all approved within 24 hours of submission, suggesting operator familiarity with NDIC procedures and pre-coordination with reviewers. Operator is also holder of adjacent spacing unit (Order 31848 waiver letter indicates self-operated offset unit), reducing inter-operator coordination burden. Geological services contracted to Core Geologic, LLC (Kevin Frederick, Isaac Cobb) indicates structured drilling support protocol.

Confidence: High
Well file contains complete permit history with dated approval documents, regulator signatures, and explicit modification language. Directional survey completed 08/21/2025 with certification by qualified surveyor (Gerardo Rodriguez, Taktikal Directional). Geological report contemporaneous with operations (dated through 08/21/2025). All sundries include date received and reviewer name. OCR text is legible and internally consistent across forms. Spud date confirmed via sundry notice (07/22/2025 received, 07/21/2025 spud). No conflicting or missing permit approval documentation identified.