| Company | Timeline | Status | |
| Serica Energy (UK) Limited Secretary • Finance Director | 1 Feb 2005←1 Year 4 Months→9 Jun 2006 | Active | |
| Petroleum Development Associates (Lematang) Limited Secretary • Finance Director | 1 Feb 2005←1 Year 2 Months→27 Apr 2006 | Dissolved | |
| Serica Holdings UK Limited Secretary • Finance Director | 1 Feb 2005←3 Years→1 Oct 2008 | Active | |
| Neo Energy Beta Limited Secretary • Unreported | 25 May 2004←6 Months→13 Dec 2004 | Active | |
| Petro-Canada Energy North Sea Limited Secretary • Unreported | 25 May 2004←24 Days→18 Jun 2004 | Active | |
Intrepid Exploration Limited Secretary • Unreported | 2 Sep 2002←15 Years→13 Feb 2018 | Dissolved | |
