| Tier | Signal | Date | Service Impact |
|---|---|---|---|
| Tier 3 |
MWD tool failure requiring trip out and replacement⏰ TIME-SENSITIVE 📄 Geologic Summary and Daily Log of Operations (October 3, 2025) Highlights reliability issues with MWD tools in extended laterals, potentially increasing costs and downtime |
2025-10-03 | General Oilfield Services |
| Tier 3 |
Intermediate casing became stuck in Upper Bakken Shale, requiring perforation, cementing, and continuation of lateral drilling 📄 Geologic Summary and Daily Log of Operations (September 17-18, 2025) Indicates operational challenges in landing the curve and potential risks for casing integrity in shale formations, not typical for routine Bakken horizontals |
2025-09-17 | General Oilfield Services |
| Tier 3 |
Request for suspension of drilling for up to 90 days to use smaller rig for surface section⏰ TIME-SENSITIVE 📄 Sundry Form ID: 235859 (April 8, 2025) Non-standard approach to rig mobilization, prioritizing cost savings over speed |
2025-04-08 | Drilling Rigs |
| Tier 3 |
Waiver requested for open hole logs, citing nearby well logs sufficient 📄 Sundry Form ID: 235866 (March 12, 2025) Reduces logging costs by relying on offset data, potentially skipping wireline services |
2025-03-12 | Regulatory / Permitting |
| Tier 3 |
Eight target changes made throughout the lateral section 📄 Geologic Summary Suggests geosteering adjustments due to subsurface variability, deviating from planned trajectory |
Relative | General Oilfield Services |