| Company | Timeline | Status | |
| Dart Energy (West England) Limited Director • Chief Executive Officer | 17 Jul 2012←1 Year 2 Months→18 Sep 2013 | Active | |
| Dart Energy (East England) Limited Director • Chief Executive Officer | 17 Jul 2012←1 Year 2 Months→18 Sep 2013 | Active | |
Dart Energy (Lothian) Limited Director • Chief Executive Officer | 17 Jul 2012←1 Year 2 Months→18 Sep 2013 | Dissolved | |
Dart Energy (Carbon Storage) Limited Director • Chief Executive Officer | 17 Jul 2012←1 Year 2 Months→18 Sep 2013 | Dissolved | |
| Igas Energy Production Limited Director • Chief Executive Officer | 17 Jul 2012←1 Year 2 Months→18 Sep 2013 | Active | |
| Dart Energy (Europe) Limited Director • Chief Executive Officer | 17 Jul 2012←1 Year 2 Months→18 Sep 2013 | Active | |
| Igas Energy Development Limited Director • Chief Executive Officer | 26 Apr 2012←1 Year 4 Months→18 Sep 2013 | Active | |
| Greenpark Energy Transportation Limited Director • Chief Executive Officer | 26 Apr 2012←1 Year 4 Months→18 Sep 2013 | Dissolved | |
