J. Craig Ruhs
Senior Analyst
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
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 located in central Australia for a major financial institute, a complete reserves and resources evaluation for offshore and onshore basins in Mexico, a countrywide 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.
Ruhs has performed waterflood analyses, regional drilling cost analyses, and well completion investigations for large-scale integrated studies on fields in Kuwait and Algeria.
