[2] Knox was appointed to Santos' CEO and MD positions in July 2008 after joining the company the previous year.
As of September 2014, the Gladstone LNG project is approaching completion as the company's future gas gateway to export markets.
[8] Knox has defended coal seam gas in response to protesters involved with the Lock the Gate Alliance and the Wilderness Society who have raised concerns about soil and water contamination from fracking.
He has described coal seam gas opposition as misinformed, lacking in understanding and in some cases "deliberately pushed by people who will never support the resources industry.
[12] In 2016, following his departure from Santos, The Adelaide Advertiser reported that Knox had received more than AUD$30 million during his employment with the company.