| Company | Timeline | Status | |
| Diamond Rig Investments Limited Director • Director | 15 Dec 2008←9 Years→24 May 2018 | Active | |
| Diamond Offshore Enterprises Limited Director • Director | 12 Nov 2008←9 Years→24 May 2018 | Active | |
| Diamond Offshore Limited Director • Director | 16 Nov 2000←17 Years→24 May 2018 | Active | |
| Noble Offshore Drilling (UK) Ltd Director • Director | 15 Nov 2000←17 Years→24 May 2018 | Active | |
