🛢️ LC Rambousek 1-16H

Murfin Drilling Company, Inc. · Dunn County, ND · File #41984 · Generated 2026-02-13 12:33

API: 33-025-05092
Target Formation: Middle Bakken
Permit Explained: Yes

📋 Permit Cycle Assessment

The well file contains contemporaneous documentation explaining the permit approval. Initial APD approval (Application for Permit for New Well - Horizontal, issued circa June 2025) permitted a 50' south setback assuming a fully cemented liner shoe with no frac-out capability. However, Murfin Drilling submitted a Sundry Notice (Form ID 259765) dated 07/23/2025 requesting a change in completion method to address specific well geometry constraints. The sundry approval (same date, 07/23/2025) modified the completion design to a wet shoe with no ability to frac out, imposed a 100' setback at toe (changing the maximum legal coordinate to 10,817' south of wellhead), and required updated wellbore diagrams and directional plans. The mudlogging and operational records confirm the well was drilled to compliance with this revised setback requirement (bottom hole location at approximately 155.03' FSL & 0.20' FEL of SW, SE Sec 21), validating that the 07/23 sundry approval was the operative permitting authorization at the time drilling commenced on 07/22/2025. The well file explicitly states the permit change was 'based on a wet shoe with no ability to frac out the shoe completion' and that 'the new toe design requires a 100' setback.' No evidence of a post-spud permit modification is documented.

🔍 Permit Cycle Signals (3)

Sundry Request/Waiver approved for Change in Completion Method—100' south setback required at toe; production liner cemented in lateral with wet shoe and no ability to frac out of shoe.

Direct

📄 WELL SUNDRY FORM (FORM ID 259765), Page 2 (Reviewer Comments); Approved 07/23/2025
📅 2025-07-23 (Exact confidence)

This is the operative regulatory condition that modified the originally permitted completion method before drilling commenced. The wet shoe design with 100' setback is the specific completion constraint conditioning final approval. Directly references revised bottom hole location and completion technique.

Initial permit stipulation (APD approval, Commission Order No. 20500 & 27926) specified south setback condition: 50' setback from south boundary when liner cemented with fully cemented shoe and no fracture out.

Supporting

📄 APPLICATION FOR PERMIT FOR NEW WELL - HORIZONTAL (Page 1, STIPULATIONS section, Category: Conditions of Approval)
📅 2025-06-16 (Inferred confidence)

Original permit condition established the regulatory baseline. The 07/23 sundry modified this to 100' setback, indicating a change driven by either revised well geometry or regulatory reassessment between initial approval and the sundry filing. The condition is contingent on wet shoe design.

Well drilled to actual total depth 21,257' MD on 2025-09-14 (per mudlogging report); bottom hole location confirmed at ~155.03' FSL & 0.20' FEL of SW, SE Sec 21, T141N, R97W (approximately 10,817' south of wellhead at total depth).

Supporting

📄 Geological Report (Mudlogging), Page 4, 'Operations - Horizontal Wellbore' section; Bottom Hole Location detail; Date: 2025-09-14 @ 1002 hrs MDT
📅 2025-09-14 (Exact confidence)

Actual drilling execution confirms the well remained compliant with the 100' setback requirement (10,817' south maximum allowed per sundry approval). This post-drilling documentation validates the completion method was executed as approved by the 07/23 sundry.

📖 Historical Context (4)

St. Anthony-Bakken Pool defined by permit as interval from 50 feet above top of Bakken Formation to 100 feet below top of Three Forks Formation per Commission Order Nos. 20500 & 27926.
📄 APPLICATION FOR PERMIT FOR NEW WELL - HORIZONTAL (Page 1, STIPULATIONS, NDIC Field Order Info) · 📅 Unknown
Pool definition is a persistent regulatory constraint affecting all future completion, stimulation, and production reporting for this well. Any production reporting, flow-back operations, or future workover must reference this pool definition for regulatory compliance and regulatory filing purposes.

Closed mud system requirement with no cuttings pit; perimeter berm required surrounding entire location.
📄 APPLICATION FOR PERMIT FOR NEW WELL - HORIZONTAL (Page 1, STIPULATIONS, Permit Review Policy and Conditions of Approval sections) · 📅 Unknown
Operational and environmental conditions that must be maintained or remediated during post-drilling phases (completion, flowback, production). Affects waste management protocols and environmental compliance obligations throughout well life.

Open hole log waiver approved (06/17/2025, FORM ID 253783) with offsetting open hole logs run on LC Rambousek 1-9H (same pad, within one mile); only GR-CBL from TD to ground level required on subject well.
📄 WELL SUNDRY FORM (FORM ID 253783), Page 2 · 📅 2025-06-17
Regulatory substitution: lack of traditional open hole logs on this well is offset by proxy logs on adjacent offset well. This affects future log interpretation requirements and may constrain certain completion design decisions if additional downhole characterization is needed later.

Filter Sock Container Waiver approved (06/17/2025, FORM ID 253786) to defer container deployment until drill-out portion of completions operations only.
📄 WELL SUNDRY FORM (FORM ID 253786), Pages 1–3 · 📅 2025-06-17
Waste management waiver specific to drilling and completion phases. Operator must ensure container is present during drill-out and flowback filtration operations; absence of container during other phases is conditionally authorized.

🔧 Operator Pattern

Operator (Murfin Drilling Company, Inc.) with multi-well pad development strategy on contiguous spacing units; internally manages offset well data (owns LC Rambousek 1-9H, 1-10H, 1-15H, and this 1-16H well); requests waivers for operational convenience (filter sock deferral, open hole log substitution) that are approved by regulator on condition of offsetting compliance mechanisms.
Surface damage affidavit (dated June 2025) confirms Murfin is operator of both the drilling unit (Section 9) and adjacent spacing unit (Sections 16 & 21); Sundry waiver letter requesting waiver from affidavit requirement for adjacent operator notification (citing self-ownership); multiple operational waivers approved in June 2025 prior to spud; completion method modification requested mid-planning cycle (07/23) and approved immediately, suggesting familiarity with regulatory process and rapid turnaround on technical submissions.

Confidence: High
The file contains clear, contemporaneous regulatory documents with explicit approval dates, signed reviewer comments, and directional/geological data confirming post-drilling execution. The 07/23/2025 Sundry approval (Form ID 259765) with accompanying well diagrams and directional plans constitutes the operative permit modification conditioning final approval. Mudlogging and directional survey records (dated 09/06–09/14/2025) confirm actual drilling execution in compliance with the approved setback and completion design. No contradictory or ambiguous documents; standard APD process with post-approval supplemental modification (sundry) is fully documented with reviewer sign-off and effective dates clearly marked.