Worldwide Petroleum Consulting
Thomas D. Scott, Jr.

Thomas D. Scott, Jr.

Thomas D. Scott, Jr.
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Since joining DeGolyer and MacNaughton in 1996, Thomas D. Scott, Jr. has evaluated more than 1,100 fields worldwide, and is a leading authority on probabilistic methods. He has nearly 30 years of experience evaluating prospects and is technical team leader of quantitative risk assessment at D&M. He has evaluated more than 3,000 prospects worldwide.

He earned two bachelor’s degree from the University of Kentucky in 1985 (business and geology), and a master’s degree in geology from the University of Oklahoma in 1988. Scott is a member of the Society of Petroleum Engineers, American Association of Petroleum Geologists, and the Society of Professional Well Log Analysts. A certified petroleum geologist, Scott is a Senior Vice President at D&M and Assistant Manager for the Reservoir Studies Division.

Geographical Experience

  • Algeria
  • Argentina
  • Australia
  • Azerbaijan
  • Bangladesh
  • Bolivia
  • Brazil
  • Canada
  • China
  • Colombia
  • Denmark
  • Ecuador
  • Egypt
  • Equatorial Guinea
  • Gabon
  • Guinea Bissau
  • India
  • Indonesia
  • Iraq
  • Italy
  • Kazakhstan
  • Kuwait
  • Mauritania
  • Mexico
  • Mongolia
  • Mozambique
  • Niger
  • Norway
  • Pakistan
  • Philippines
  • Qatar
  • Romania
  • Russia
  • Spain
  • Sri Lanka
  • Tanzania
  • Trinidad
  • Tunisia
  • UAE
  • Ukraine
  • United Kingdom
  • United States
  • Venezuela
  • Vietnam
  • Yemen

Topical Areas of Expertise

  • Exploration economics
  • Probabilistic estimation and modeling
  • Log analysis
  • Sedimentology

Major Projects
Scott has described reservoirs and estimated reserves in some of the largest slope to base-of-slope siliciclastic systems in the world, notably the Campos, Burgos, Western Africa, the North Sea, and the Gulf of Mexico. His interpretations have included analyses using sequence stratigraphic concepts, petrophysics, and sedimentary petrology. Globally, he has mapped many of the major deepwater fields, estimating deterministic and probabilistic reserves.

Scott has performed probabilistic estimations for more than 1,400 prospects. These estimations have included the quantification of geologic and economic success, as well as volumetric uncertainty using probabilistic techniques and quantitative risk assessment software. He has presented his results to foreign and multinational oil and gas companies.

Prior to coming to D&M, for Mobil Oil Corporation, Scott described the depositional and diagenetic facies in the core and outcrops of the Cambro-Ordovician carbonates from Maryland to Texas. With a sequence stratigraphy team, he evaluated prospects in the deepwater Gulf of Mexico. To generate and evaluate those prospects, his team built an integrated, regional sequence stratigraphic framework. For this work, Scott was named Mobil’s “Explorationist of the Year.”