Dead Oil Posted on 7th November 201523rd July 2021 by ThePD (The Project Definition) Dead Oil is the oil at sufficiently low pressure that it contains no dissolved gas or a relatively thick oil. (e.g., Tar, heavy oil and bitumen) 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. 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.