Gail Arnold 33-28-21 4H - Intelligence Brief

Phoenix Operating, LLC · Divide County, North Dakota County, ND · File #42017 · Generated 2026-02-09 17:05

📊 Signals (5)

Tier	Signal	Date	Service Impact
Tier 2	Waiver for tubing/packer requirement, citing well design assurances for safety during flowback. 📄 Sundry Form ID: 254343 Non-routine casing design choice, allowing flowback without packer.	2025-06-18	Regulatory / Permitting
Tier 3	Well encountered Last Bakken Shale (LBS) at 10,199' MD on 10/14/2025, leading to decision to cement back and skid to adjacent well Gail Arnold 33-28-21 3H, followed by sidetrack (ST1) drilling starting 10/24/2025. 📄 Geological Summary, page 4-5 Sidetrack indicates unexpected geological encounter requiring operational pivot, not standard horizontal drilling progression.	2025-10-14	General Oilfield Services
Tier 3	Waiver requested for open hole logs, citing sufficient logs from offset well MOE TRUST 33-28-160-98H 1BP within 1 mile. 📄 Sundry Form ID: 254298 Bypasses routine logging requirements, potentially to expedite operations.	2025-06-18	Regulatory / Permitting
Tier 3	Waiver for filter sock container, as operator does not use filtration media during drilling. 📄 Sundry Form ID: 254332 Exemption from standard waste containment, reflecting specific drilling practices.	2025-06-18	Regulatory / Permitting
Tier 3	Operator requested waiver for drill cutting samples in vertical section, collecting samples from offset well Gail Arnold 33-28-21 1H instead. 📄 Sundry Form ID: 254326 Non-standard regulatory compliance, reducing on-site sampling efforts.	2025-06-18	Regulatory / Permitting

Tier

Signal

Date

Service Impact

Tier 2

Waiver for tubing/packer requirement, citing well design assurances for safety during flowback.
📄 Sundry Form ID: 254343
Non-routine casing design choice, allowing flowback without packer.

2025-06-18

Regulatory / Permitting

Tier 3

Well encountered Last Bakken Shale (LBS) at 10,199' MD on 10/14/2025, leading to decision to cement back and skid to adjacent well Gail Arnold 33-28-21 3H, followed by sidetrack (ST1) drilling starting 10/24/2025.
📄 Geological Summary, page 4-5
Sidetrack indicates unexpected geological encounter requiring operational pivot, not standard horizontal drilling progression.

2025-10-14

General Oilfield Services

Tier 3

Waiver requested for open hole logs, citing sufficient logs from offset well MOE TRUST 33-28-160-98H 1BP within 1 mile.
📄 Sundry Form ID: 254298
Bypasses routine logging requirements, potentially to expedite operations.

2025-06-18

Regulatory / Permitting

Tier 3

Waiver for filter sock container, as operator does not use filtration media during drilling.
📄 Sundry Form ID: 254332
Exemption from standard waste containment, reflecting specific drilling practices.

2025-06-18

Regulatory / Permitting

Tier 3

Operator requested waiver for drill cutting samples in vertical section, collecting samples from offset well Gail Arnold 33-28-21 1H instead.
📄 Sundry Form ID: 254326
Non-standard regulatory compliance, reducing on-site sampling efforts.

2025-06-18

Regulatory / Permitting

💡 Operator Intent

Achieve precise stratigraphic placement in Middle Bakken with 100% in-zone drilling, adjusting targets based on gamma correlations.

Landing target adjusted downward 4' prior to KOP, and upward 4' during curve; wellbore maintained up-dip tendency and full facies coverage.

Minimize regulatory and operational costs through waivers for samples, logs, tubing, and waste containment.

Multiple sundry notices approved for waivers, citing offsets or design assurances.

Rapidly complete drilling and prepare for completion, with sidetrack executed within days of encountering LBS.

Sidetrack initiated 10 days after initial lateral start, TD reached 13 days later; well noted as 'waiting for completion'.

🔧 Service Operator Relevance

Directional Drilling and Geosteering

Sidetrack on 10/24/2025 requires immediate directional services; StarSteer and Baker Hughes motor in use for precise placement.

Mud Logging and Geological Monitoring

2 Bees Consulting active through October 2025; Pason Systems for data recording during final drilling phase.

Completion Preparation

Well at TD 10/27/2025, preparing for liner operations; waiver for tubing/packer signals flowback services needed soon.

🛢️ Gail Arnold 33-28-21 4H

📊 Signals (5)

💡 Operator Intent

🔧 Service Operator Relevance