Joann Johnston Email
Senior Technologist @ Gran Tierra Energy
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Joann Johnston Location
- Calgary, AB, CA
Joann Johnston Work
- now Senior Technologist @
- 2009 -now Senior Technologist @
- 1984 -1997 Technoligist @ Canadian Occidental
Joann Johnston Summary
- Joann Johnston, based in Calgary, AB, CA, is currently a Senior Technologist at Gran Tierra Energy. Joann Johnston brings experience from previous roles at Gran Tierra Energy and Canadian Occidental. Joann Johnston has 1 emails on RocketReach.
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