Shale Oil Posted on 21st December 20158th May 2021 by ThePD (The Project Definition) Shale Oil refers to the Oil Shale (or Shale Oil). Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Substance and tagged oil, resource, shale oil. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.