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Oswego Career Ladders - Mud Logger

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Mud Logger

Industry: Energy
Area: Geothermal

Geothermal energy production involves tapping the heat present in subsurface rock and soil units. It can be as simple as withdrawing warm ground water and using it as a source of heat or it can involve tapping hot subsurface waters to generate electricity. It is considered by many to be a "green" energy source that has minimal impact upon the natural environment. Mudloggers are geologists who work out of mobile field laboratories which are set up at the edge of the drilling location. The primary function is to collect, describe, and evaluate rock cuttings which are returned to the surface with the drilling fluid.

Work Settings

The work setting is at and or nearby the drilling site.


A bachelor's degree in geology or other earth science containing a substantial amount of geology is required.

Job Outlook

The job market for geoscientists is highly competitive. Although employment growth will vary by occupational specialty, overall employment is expected to grow more slowly than average for all occupations through 2014. However, due to the relatively low number of qualified science graduates and the large number of expected retirements, opportunities are expected to be good in most areas of geoscience. Job growth is expected within management, scientific, and technical consulting services. Demand will be spurred by a continuing emphasis on the need for energy, environmental protection, responsible land management, and water-related issues.


Experienced Mud Loggers can earn between $40,000 and $65,000 per year.

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