DeGolyer and MacNaughton is a petroleum consulting company based in Dallas, Texas, with offices in Houston, Moscow

Moscow

Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

, and Calgary

Calgary

Calgary is a city in the Province of Alberta, Canada. It is located in the south of the province, in an area of foothills and prairie, approximately east of the front ranges of the Canadian Rockies...

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DeGolyer and MacNaughton was founded in 1936 by Everette Lee DeGolyer

Everette Lee DeGolyer

Everette Lee DeGolyer . was a prominent oilman, geophysicist and philanthropist in Dallas...

 and Lewis MacNaughton. In 2004, it acquired Calgary-based Outtrim Szabo Associates forming its office in Canada.

Activities

DeGolyer and MacNaughton Corp. provides petroleum consulting services in the United States and internationally. It offers appraisals, economic forecasts

Economic forecasting

Economic forecasting is the process of making predictions about the economy. Forecasts can be carried out at a high level of aggregation - for example for GDP, inflation, unemployment or the fiscal deficit - or at a more disaggregated level, for specific sectors of the economy or even specific...

, geological

Geology

Geology is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which it evolves. Geology gives insight into the history of the Earth, as it provides the primary evidence for plate tectonics, the evolutionary history of life, and past climates...

 studies, geophysical studies

Geophysical survey

Geophysical survey is the systematic collection of geophysical data for spatial studies. Geophysical surveys may use a great variety of sensing instruments, and data may be collected from above or below the Earth's surface or from aerial or marine platforms. Geophysical surveys have many...

, petrophysical

Petrophysics

Petrophysics is the study of the physical and chemical properties that describe the occurrence and behavior of rocks, soils and fluids . Petrophysics mainly studies reservoirs of resources, including ore deposits and oil or natural gas reservoirs...

 studies, engineering analysis

Engineering analysis

Engineering analysis involves the application of scientific analytic principles and processes to reveal the properties and state of the system, device or mechanism under study...

, reservoir simulation

Reservoir simulation

Reservoir simulation is an area of reservoir engineering in which computer models are used to predict the flow of fluids through porous media.-Uses:...

, reserves assessment, and management services. The company also offers geological and engineering services for the exploration and production of metallic and nonmetallic minerals. It serves the petroleum industry and financial community.

Executives

• W. Gary McGilvray, Chairman and Chief Executive Officer
• James Hail, President
• John W. Wallace, Executive Vice President
• Robert A. Cooksey, Senior Vice-President
• Martin C. Wiewiorowski, Senior Vice President and General Director of Moscow
• Paul J. Szatkowski, Senior Vice President and General Manager of Houston