🛢️ Shorthorn 3-27 4TFH

Zavanna Energy Operating, LLC · Williams County, ND · File #37435 · Generated 2026-10-14 06:15

API: 3310505432
Target Formation: Three Forks
Confidence: High

📊 Signals (5)

Tier	Signal	Date	Service Impact
Tier 3	Spud notification indicates drilling rig Nabors X28 spudded the well on August 21, 2026.⏰ TIME-SENSITIVE 📄 Spud Notification / Sundry Form (Notification of Work Performed) Provides exact spud date and identifies the drilling rig contractor, confirming the start of drilling operations.	2026-08-21	Drilling Rigs
Tier 3	Operator requested and received a waiver to replace visual inspection of top intermediate casing joint and wellhead flange with wireline logging solution, citing superior quantitative data and reduced risk. 📄 Sundry Form (Request for Variance/Waiver), FORM ID: 330398 Demonstrates a non-routine operational preference for advanced diagnostic tools over standard regulatory visual checks, indicating a reliance on specific wireline services.	2026-08-11	Regulatory / Permitting
Tier 3	Operator requested and received a waiver for drill cutting samples in the vertical portion, relying on samples from a sister well (Shorthorn 3-27 1H) on the same pad. 📄 Sundry Form (Drill Cutting Samples Waiver), FORM ID: 330397 Shows pad-scale operational planning to streamline sample collection, reducing redundancy and potentially altering service requirements for mud logging or sample handling on this specific well.	2026-08-10	Mud / Fluids
Tier 3	Operator requested and received approval to expand the existing pad to accommodate a larger rig size and facilities move, with detailed engineering plans submitted. 📄 Sundry Form (Request to Perform Work), FORM ID: 315821 Signals a pre-spud infrastructure investment and a change in rig specifications, indicating upcoming activity requiring larger equipment and site construction services.	2026-05-26	Drilling Rigs
Tier 3	Operator requested and received a waiver for onsite filter sock handling containers, using centralized third-party bins at SWD facilities instead. 📄 Sundry Form (Filter Sock Container Waiver), FORM ID: 268263 Reveals a company-wide waste management strategy that centralizes filter sock disposal, eliminating a routine on-site service requirement for individual wells.	2025-09-09	Regulatory / Permitting

💡 Operator Intent

To drill a long-lateral Three Forks well within a 1280-acre spacing unit, targeting a specific subsurface 'sweet spot'.

Geologic prognosis specifies 'Three Forks Target' and 'Sweet Spot Target' with precise TVD targets, and completion details indicate a ~10,000 ft lateral with 50 planned frac stages.
To implement a pad-scale development strategy, coordinating drilling, sampling, and gas capture across multiple wells.

Multiple waivers reference using data from sister well (Shorthorn 3-27 1H), and a single gas capture affidavit covers all six wells on the Shorthorn pad.
To employ engineered drilling practices and advanced evaluation methods to mitigate casing wear and ensure wellbore integrity.

Waiver request describes refined drilling process including extended wear bushing, rotating head for centralization, and centralization checks to mitigate top joint casing wear.

🔧 Service Operator Relevance

Wireline Logging (Casing Evaluation)

Operator's approved waiver specifically mandates wireline logging (caliper) as a replacement for visual inspection, creating a defined service requirement post-drilling.

Pad Construction & Earthmoving

Pad expansion was approved in May 2026 for a larger rig, indicating recent or imminent need for construction services prior to the August 2026 spud.

Directional Drilling / MWD Services

Well has a detailed directional plan; spud has occurred, so directional drilling and survey services are actively underway or recently completed.

Waste Management / Solids & Liquids Hauling

Specific offsite disposal vendors (IHD) are named for cuttings and mud; these services are required during and immediately after drilling.