Three Forks

Three Forks Play Map

Three Forks Horizontal Production


The graphic above presents all Three Forks horizontal wells completed in the Williston Basin since 2008.

The Three Forks is an unconventional, tight oil play and can be delineated into upper, middle, and lower zones. The North Dakota Industrial Commission (NDIC) establishes the Bakken Petroleum System to encompass the first 50’ below the Bakken, which includes the upper and middle Three Forks zones. This producing zone is overpressured due to source rock maturity, ranging from ~0.55 – 0.80 psi/ft.

Development of the Three Forks has been heavily concentrated in North Dakota. To date, the Bakken has been approximately three times as active as the Three Forks (on the basis of horizontal well count and cumulative oil production).

Methodology Overview

VSO sourced landing bench and production data from IHS to prepare these maps.

Reservoir & Geologic Studies

VSO has completed extensive analysis of well performance and productivity throughout the Williston Basin. Additional reservoir and geologic capabilities include:

Assessment of Development Potential and Risks

Type Well Analysis

Evaluation of Well Performance and Interference

Midstream/Supply Studies

Audits/Evaluations of Producing Assets

Key Cross-Sections

Reservoir Quality Maps – Porosity, TOC, OOIP

Upside development Reservoir Quantity Maps – Gross and Net Isopachs

Pressure Trends

Maturity & GOR Impacts