Consultoria Mundial de Petróleo e Gás
J. Craig Ruhs

J. Craig Ruhs

J. Craig Ruhs
Senior Analyst
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Craig Ruhs joined DeGolyer and MacNaughton in 2009 following a 6-year career as an officer in the U.S. Navy.

In 2003, Ruhs graduated from the United States Naval Academy with a bachelor’s degree in economics. Ruhs is a member of the Society of Petroleum Engineers. He was named a Vice President of D&M in 2019.

Geographical Experience

  • Algeria
  • Australia
  • Brazil
  • Canada
  • Colombia
  • Guyana
  • India
  • Indonesia
  • Italy
  • Kenya
  • Kuwait
  • Libya
  • Mexico
  • Mozambique
  • Namibia
  • Oman
  • Pakistan
  • Russia
  • Saudi Arabia
  • Trinidad and Tobago
  • Ukraine
  • United Kingdom
  • United States
  • Venezuela

Topical Areas of Expertise

  • Reservoir modeling
  • Material-balance calculations
  • Decline-curve analysis
  • Field development analysis and planning
  • Economic modeling
  • Canadian National Instrument 51-101 standards
  • Coalbed methane evaluation
  • CO2 Sequestration 45Q U.S. tax credit certifications
  • CO2 monitoring, reporting, and verification (MRV) plans
  • CO2 Storage Resources Management System (SRMS) standards

Major Projects

Working as part of an integrated project team, Ruhs has provided analytical expertise for evaluations of reserves, contingent resources, and prospective resources for oil and gas assets around the globe. For example, Ruhs worked within integrated teams that have performed regional and large basin studies of the Cooper Basin, Australia for a major financial institute, a complete reserves and resources evaluation for offshore and onshore basins in Mexico, a countrywide prospective resources evaluation in Kuwait, and a reserves evaluation in Saudi Arabia.

Ruhs was a lead technical advisor to the Mexican government’s National Hydrocarbon Commission (CNH) during the Mexican energy reform, providing field and block evaluations focused on reservoir performance, field development, development timing, and economic evaluations and screening under multiple fiscal terms. Additionally, he has conducted many conceptual field development and optimization studies for onshore and offshore fields around the world, including LNG and FLNG field developments.

Some of his most recent projects involved assisting clients within the United States with certifying their 45Q tax credits associated with enhanced oil recovery operations or permanent storage and coordinating teams to evaluate or create MRV plans for CO2 enhanced oil recovery projects in the United States. Ruhs has also provided seminars to clients covering the topics of SRMS, coalbed methane, and prospective resource evaluations.