Fasken Oil and Ranch, Ltd. is a privately held Permian Basin operator focused on systematic horizontal development within the Midland Basin core. The CASSELMAN project in Midland County illustrates how established Permian operators execute multi-section pad development programs that combine standardized drilling design, repeatable surface layouts, and centralized production infrastructure anchored by a central tank battery (CTB).
📍 Surface Persona – Multi-Section Pad Development in Midland County
Play: Permian Basin – Midland Sub-Basin
County: Midland County, Texas (core activity) with extension into Andrews County
Total Wells: 20
All wells are concentrated across a tight acreage footprint in the Midland Basin:
Blocks / Sections:
Block 40
Block 40T1N
Block 40T1S
Sections represented across the program include multiple contiguous survey sections, confirming a large contiguous leasehold position rather than exploratory drilling.
Lease Organization
The wells are organized into multiple development units:
Lease Wells CASSELMAN N UNIT 4 CASSELMAN P UNIT 4 CASSELMAN R UNIT 4 CASSELMAN J UNIT 4 Other Casselman leases 4
This unit-based organization confirms a repeatable section-scale development pattern.
Well Pad Configuration
Using surface coordinates clustered within 60 meters, the wells group into 12 well pads.
Pad (Lease Based) Wells Casselman N Unit Pads 4 wells across 2 pads Casselman P Unit Pads 4 wells across 2 pads Casselman R Unit Pads 4 wells across 2 pads Casselman J Unit Pads 4 wells across 2 pads Other Casselman Pads 4 wells
Total Well Pads: 12
Average Wells per Pad: ~2 wells
The pad distribution suggests a paired pad layout within each development unit, supporting multi-section development while minimizing surface disturbance.
Drilling Contractor Deployment
| Contractor / Rig | Wells |
|---|---|
| Helmerich & Payne Rig 426 | 16 |
| Helmerich & Payne Rig 659 | 4 |
A single primary rig (H&P 426) drilled the majority of the wells, with a secondary rig supporting early or step-out drilling activity.
Surface Persona (Summary)
The Casselman development represents a multi-section Midland Basin drilling program organized around several Casselman unit leases and executed from clustered two-well pads across twelve surface locations. The surface design reflects a repeatable development model using Helmerich & Payne rigs and centralized infrastructure planning anchored by the Casselman CTB facility.
🔬 Sub-Surface Persona – Spraberry Trend Horizontal Development
Primary Field: Spraberry (Trend Area)
Well Type: Horizontal oil wells
Total Wells: 20
Projected Depth Profile
Minimum Depth: ~10,500 ft
Maximum Depth: ~11,200 ft
Average Depth: ~10,850 ft
Total Feet Drilled (Planned): ~217,000 ft
The narrow projected depth range indicates consistent landing zones across the entire program, typical of Spraberry and Wolfcamp horizontal development in the Midland Basin.
Using the repeated section pattern, narrow depth variance, and single field designation, the project shows clear indicators of co-development of stacked benches rather than exploratory drilling.
Sub-Surface Persona (Summary)
The Casselman project targets the Spraberry Trend Area using standardized horizontal oil wells drilled to approximately 10,500–11,200 feet, consistent with Midland Basin unconventional development. The uniform depth profile across multiple sections strongly indicates co-development of stacked Spraberry and Wolfcamp benches executed from centralized pads.
⏱ Project Cadence – From Permit to Production Facility
The Casselman CTB air permit (Project #406163) marks the transition from drilling activity to centralized production readiness.
📊 Full Development Timeline
| Phase | Date | Days from Prior Phase |
|---|---|---|
| First Licence Date | Jan 27, 2025 | – |
| First Spud | Jan 30, 2025 | 3 days |
| Last Spud | Feb 25, 2026 | 391-day drilling window |
| Facility Air Permit Received | Mar 10, 2026 | 13 days |
| Total Cycle Time | Jan 27, 2025 → Mar 10, 2026 | ~407 days |
The drilling program maintained an average cadence of ~20.6 days between spuds.
🏭 The Factory Workflow in Action
The Casselman program reflects a scaled Midland Basin development workflow:
Permit Phase – Batch licensing across multiple sections
Rig Mobilization – Primary rig executing sequential pad drilling
Drilling Phase – ~20-day spud cadence across units
Completion Phase – Expected following final spud in early 2026
Facility Authorization – Casselman CTB air permit issued March 2026
Production Mode – Centralized tank battery supporting multi-pad development
The presence of undrilled wells indicates continuing execution, suggesting the development is still progressing toward full production buildout.
Strategic Takeaway
The Casselman development illustrates how Fasken Oil and Ranch executes multi-section Midland Basin development using standardized horizontal Spraberry wells and repeatable pad layouts feeding centralized infrastructure. The combination of consistent landing depths, clustered well pads, and a CTB facility approved shortly after drilling completion reflects a disciplined factory-style development model typical of efficient Permian operators managing large contiguous acreage positions.
