| An associate | ExxonMobil |
| Start Date | 2018-00-00 |
| Is Current | yes |
| Notes | John Schubert, Chairman of the GBRF commenced his career with Esso Australia as a professional engineer holding various positions in Australia and overseas. In 1983 he was appointed to the board of Esso Australia, in 1985 John became Esso's Deputy Managing Director and in 1988 Chairman and Managing Director. Esso is a subsidiary of petro-giant ExxonMobil. |