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BiographyMr. John D. Gass served as the President of ChevronTexaco Worldwide Gasification Techn since November 1, 2012 and Weatherford International plc since June... |
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| Date | Designation | Entity | Entity Description | Country |
|---|---|---|---|---|
| 2014 | Southwestern Energy Co | Energy | United States | |
| 2013 | Weatherford International Ltd | Company In Energy, Oil & Gas | Switzerland | |
| 2013 | Weatherford International Ltd | -- | Switzerland | |
| 2013 | Weatherford International Ltd | -- | Switzerland |