🛢️ TUNNOCK 5303 12-2 4B

OASIS PETROLEUM NORTH AMERICA LLC · Williams County, ND · File #42928 · Generated 2026-08-22 01:47

API: 3310506831
Target Formation: Bakken
Confidence: High

📊 Signals (7)

Tier	Signal	Date	Service Impact
Tier 2	Approval conditional on 150' north/south and 500' east/west setbacks within a 2560-acre spacing unit, with south setback based on a production liner cemented in lateral with a wet shoe and ability to frac out the shoe. 📄 Stipulations section, page 1 Specific, non-standard setback conditions tied to a unique wellbore construction (wet shoe) and completion technique. This imposes a hard geometric constraint on the lateral placement and indicates a tailored regulatory approval.	Unknown	Completions / Frac
Tier 2	Detailed 'Wet Shoe' configuration described: intentionally over-displacing cement by 7 bbls to create ~400 ft uncemented annulus at liner toe for wireline pump-down perforating. 📄 Wet Shoe section, attachment Detailed engineering design for a specific completion technique aimed at cost-saving (avoiding tubing/tractor perforating). It's a deliberate, non-standard cementing and completion plan.	Unknown	Completions / Frac
Tier 3	Drill-back notification affidavit certifies email notification was sent to adjacent operator (Devon Energy) on 2/11/2026 regarding wellbores entering Bakken outside target unit. 📄 Affidavit Affirming Drill-Back Notification Documents formal, dated communication with a specific competitor (Devon) regarding subsurface encroachment, demonstrating proactive regulatory compliance and inter-operator coordination.	2026-02-11	General Oilfield Services
Tier 3	Anticipated Commencement Date: Jul 15, 2025. Drilling Days: Approximately 30 days.⏰ TIME-SENSITIVE 📄 Anticipated Starting Dates, attachment section Explicit target start date and duration provided in the planning documents, indicating firm operator scheduling intent.	2025-07-15	Mud / Fluids
Tier 3	A CBL is required on the 9-5/8" intermediate (Dakota water string) prior to setting 7" casing. A standard CBL is required on the 7" casing. 📄 Page 2 Mandates two specific cement bond logs at defined casing points. The requirement on the intermediate string prior to proceeding is an extra verification step.	Relative	General Oilfield Services
Tier 3	Operator must contact NDIC Field Inspector Jessica Gilkey prior to location construction.⏰ TIME-SENSITIVE 📄 Construction Commencement Notification, page 1 Explicit, named inspector pre-notification requirement is a specific procedural hurdle beyond standard permit approval.	Relative	Drilling Rigs
Tier 3	Operator asserts they will give 21-31 days prior written notice to operators of wells in same/adjacent pool if completion intervals are within 2,640 feet.⏰ TIME-SENSITIVE 📄 Operator Assertions, page 7 Goes beyond standard NDIC rules, indicating operator's internal policy or response to local coordination needs, creating a formal notification window.	Relative	Completions / Frac

💡 Operator Intent

Optimize completion cost for the first stage using a 'wet shoe' design to enable cheaper wireline pump-down perforation instead of tubing-conveyed or tractor methods.

Detailed engineering description of the wet shoe configuration, stating it 'allows the operator to pump-down the first stage perforating guns on wireline, avoiding the more expensive option...'
Execute a multi-well pad development with precise anti-collision management.

Inclusion of a detailed anti-collision report referencing multiple other wells on the same pad (TUNNOCK 2BX, 3B, 5B, JAFFA series), and assertions about using real-time surveys, gamma ray signatures, and maintaining a 1.2 separation factor.
Adhere to a strict environmental and waste management protocol, particularly for filter socks and drill cuttings.

Repeated assertions and included regulatory letter regarding leak-proof filter sock containers, and the listing of 9 specific licensed solid drill cutting disposal facilities to be used.

🔧 Service Operator Relevance

Cementing & Wireline Services

The approved 'wet shoe' design requires precise cement over-displacement and will be followed by wireline pump-down perforating for the toe stage, creating immediate service opportunities tied to this specific completion sequence.

Drilling & Directional Services

Firm anticipated spud date of ~Jul 15, 2025, with a 30-day drilling program. Anti-collision report shows complex well paths near existing wells, demanding high-precision directional drilling services.

Solid Waste/Drill Cuttings Hauling & Disposal

Operator has pre-selected a list of 9 licensed disposal facilities. Haulers and disposal sites on this list (e.g., Chimney Butte, Dishon Disposal, Secure Energy, Tervita) have a defined opportunity for this well's cuttings.

Regulatory & Inspection Coordination

Mandatory pre-construction contact with named NDIC Inspector Jessica Gilkey and required CBLs at specific casing points create defined touchpoints for inspection and compliance services.