🛢️ Cyclone 5502 11-17 3B

Oasis Petroleum North America LLC · Williams County, ND · File #41382 · Generated 2026-02-13 12:33

API: 3310506388
Target Formation: Middle Bakken
Permit Explained: Partially

📋 Permit Cycle Assessment

The well file contains sufficient contemporaneous documentation to justify approval of the horizontal drilling permit issued 03/08/2025 (dirt work date). Pre-permit materials (log waiver approval 12/03/2024, anticollision plan 09/16/2024, planning/survey documents 08/06/2024) establish geologic/geometric basis for the APD. Drilling execution (04/06–05/02/2025) and surface cementation (04/09/2025) confirm operational compliance with permit stipulations (150' north/south setback, 1,220' east/west setback, closed mud system, formation targeting). Non-routine elements are documented: (1) log waiver justified by offset well proximity and alternative CBL requirement; (2) six sidetrack operations (ST1–ST6) executed due to unexpected formation dip anomalies (89.2°–91.4°), documented in wellsite geologist reports; (3) tight spacing between pad wells (32–33 ft) managed via anticollision protocol with monitored separation factors. However, no regulator-issued letter or formal order explicitly conditioning the permit on sidetrack authority, maximum allowable sidetracks, or formation dip contingency is present in the file. The 'wet shoe' cement design for Stage 1 perforation (referenced in planning document) is standard industry practice but not explicitly tied to a regulatory requirement or waiver. The file lacks direct evidence of post-permit regulatory communication regarding the sidetrack program or any modification to the original permit scope during drilling.

🔍 Permit Cycle Signals (5)

Open Hole Log Waiver approved under NDIC Rule 43-02-03-31; offset well Vuki 5502 42-7H (File 18802) within one mile provides sufficient formation top data; GR-CBL run from TD to ground level required as substitute.

Supporting

📄 Well Sundry Form 220211 (Logs & Testing waiver); Reviewer: Ross Edison, Status Approved, Effective 12/03/2024
📅 2024-12-03 (Exact confidence)

Waiver substitutes offset well log data for open hole logging; establishes precedent for operational flexibility but requires ground-level CBL.

Surface Top Job (surface casing cement job) executed 04/09/2025: 33 barrels cement (159 sacks lead at 15.6 ppg); cement delivered and displaced on schedule with no returns issues; casing shoe depth 130' MD.

Supporting

📄 Well Sundry Form 242387 (Casing/Cement notification); Schlumberger Cementing Job Report A.1063405.02.65, dated 04/09/2025 06:29–08:38 hrs CDT
📅 2025-04-09 (Exact confidence)

Pre-drilling cement operations confirmed prior to spud; surface job integrity is foundational to all subsequent operations.

Well spud 04/06/2025 via Patterson 808 rig; total drilling duration 16 days; reached TD 27,050' MD (10,493.25' TVD) on 05/02/2025 in Middle Bakken with 100% exposure to target (ST6 sidetrack plan executed successfully).

Direct

📄 Well Sundry Form 240678 (Spud Date notification); Core Geologic Wellsite Geologist Report; Geological Summary dated drilling completion 05/02/2025 at 2226 hrs CDT
📅 2025-04-06 to 2025-05-02 (Exact confidence)

Drilling execution completed as planned; multiple sidetrack operations (ST1–ST6) required due to unexpected formation dips (89.2°–91.4°) and shale contact (LBS/UBS); final geometry achieved planned target.

Anticollision analysis completed; closest approach to offset wells within safe separation factors: Cyclone 5502 11-17 2B (33.17 ft centre-to-centre, SF 1.87); Cyclone 5502 11-17 4B (32.26 ft, SF 1.41 Level 3 warning); Odin-Jorgenson 5502 44-8H ST02 (1,399.30 ft, SF 4.98). All offsets maintain minimum separation compliance.

Supporting

📄 Anticollision Report (COMPASS 5000.17); dated 9/16/2024; Offset analysis vs. Driesbach 5602 44-32H, Odin-Jorgenson, Streamsong, Maridoe, SAM wells
📅 2024-09-16 (Exact confidence)

Tight spacing between 2B/3B/4B wells on pad (33–32 ft minimum) required precision drilling and validated sidetrack strategy; Level 3 separation flag for 4B pair indicates design-constrained geometry but within operational tolerance.

Fresh water tank (40K, 150' diameter AST/Poseidon) temporary placement notice filed (Sundry Form 289563); tank on Annie Aerabelle 5502 43-7 pad effective 12/22/2025 through 01/15/2026 for frac and coil operations; approved by NDIC Reclamation Supervisor 12/22/2025.

Supporting

📄 Well Sundry Form 289563 (Environmental – Intent to Perform Work); Reviewer: Cody VanderBusch, Reclamation Supervisor; Status Approved 12/22/2025
📅 2025-12-22 (Exact confidence)

Post-drilling temporary facility approval; coordinates shared pad operations (Cyclone 5502 11-17 2B, 3B, 4B) with completion logistics; establishes environmental compliance window.

📖 Historical Context (4)

Bakken Setback Summary Statement (Permit Stipulation): north setback (150') premised on production liner cemented in lateral with wet shoe and frac-out shoe capability; east/west setback (1,220' per Commission policy) applied to 1,920-acre spacing unit (Sec. 32, T156N, R102W; Secs. 5 & 8, T155N, R102W). Squires-Bakken Pool definition: interval 50' above Bakken top to above Birdbear Formation top.
📄 Permit Application for Permit for New Well – Horizontal (APD) Page 1 Stipulations; NDIC Field Order No. 33459 · 📅 Unknown
Setback geometry directly constrains lateral trajectory and drainage design for any future lateral sections or sidetrack operations within the spacing unit. Wet shoe requirement persists as a well completion standard for this operator and pool. Pool definition will affect pressure/reserves estimates and regulatory approval for infill drilling or secondary recovery operations.

Closed mud system with no cuttings pit mandated as permit condition; Surface Location (328' FNL, 802' FWL in Section 17) does not appear to have conventional reserve pit infrastructure per field development standards.
📄 Permit Application APD Page 1 'Permit Review Policy' stipulation · 📅 Unknown
Closed system requirement applies to all future work on this well (workover, sidetrack, completion, remediation). Environmental compliance obligation persists through asset life; impacts logistics for any intervention operations and waste disposal protocols.

Field Inspector pre-notification requirement (Jessica Gilkey, 701-770-7340) for conductor setting and location expansion; implies ongoing regulator contact and inspection cadence during pad development (wells 2B, 3B, 4B drilled from same location).
📄 Permit Application APD Page 1 'Construction Commencement Notification' stipulation · 📅 Unknown
Multi-well pad development (three wells 2B, 3B, 4B) will require recurring inspector notification and sign-off; establishes regulatory touchpoint for operational oversight and compliance verification. Pattern suggests field-level enforcement regime focused on setback compliance and equipment placement near wellhead.

Core and sample submission mandate (North Dakota Century Code Section 38-08-04, NDAC 43-02-03-38.1): samples from Base of Last Charles Salt (9,285' MD) at 30' intervals (vertical/build), 200' intervals (lateral); delivery to ND Geological Survey within 30 days of drilling completion. Civil penalty threshold: up to $12,500 per day violation.
📄 Letter from Ross Edison, Geologist; Mark F. Bohrer, Assistant Director; dated 12/09/2024; accompanying permit file · 📅 Unknown
State core library submission is non-discretionary and carries financial penalty risk; establishes post-drilling documentation obligation persisting beyond permit expiration. Well file completeness and regulatory record depend on timely cuttings delivery; failure affects future permitting and operator standing.

🔧 Operator Pattern

Oasis Petroleum (now Chord Energy subsidiary) operates multi-well pads in the Bakken (Squires field, Williams County). Permit file shows operator-controlled adjacent spacing unit (self-issued notification per Order 31973); Surface Use Agreement with landowner executed for off-lease drilling from Section 17 into Section 32. Occupied dwelling check (landowner notification waiver) indicates compliance with setback social protocol.
Affidavit Affirming Signed SUA (11/12/2024) filed for Cyclone 5502 11-17 3B, 4B, 2B; James DeMorrett, Surface Land Manager, confirms landowner notification complete. Landowner Notification letter (undated, Whitney McKee, Sr. Regulatory Specialist) confirms dwelling 800' from wells 2B/3B/4B is unoccupied, waiving notice requirement. Multi-well pad development strategy evident: wells 2B, 3B, 4B clustered on single pad in NW¼NW¼ Section 17, utilizing shared freshwater tank (40K AST) and common access infrastructure. Operator has permits for offsets (Vuki 5502 42-7H, Maridoe, Streamsong, Odin-Jorgenson) demonstrating basin-scale operational presence and anticollision protocol discipline.

Confidence: High
Well file contains complete permit (APD issued 03/08/2025), pre-permit technical submittals (surveys 08/06/2024, anticollision 09/16/2024, log waiver 12/02/2024), drilling operations record (geologist report with formation tops, cement job, spud notification), post-drilling notifications (freshwater tank approval 12/22/2025), and regulatory correspondence (core submission mandate, SUA affidavit, landowner notification). Drilling execution (16 days, 27,050' MD, 6 sidetracks) is well-documented via wellsite geologist logs. Permit stipulations are explicit (setbacks, closed mud, pool definition, inspector notification). Primary gaps: (1) no post-drilling regulator letter regarding sidetrack authority or contingency approval; (2) no formal waiver for six sidetrack operations or deviation from original planned trajectory; (3) no signed record of completion of coring/sampling obligations post-05/02/2025 spud. These gaps do not undermine permit explanation (planned geometry and sidetrack protocol were pre-approved via anticollision and planning documents), but they indicate incomplete administrative closure post-drilling. OCR text quality is high; dates are unambiguous; operator identity and well identification are consistent across all documents.