| Company | Timeline | Status | |
| Dart Energy (West England) Limited Secretary • Lawyer | 25 Jun 2009←6 Months→31 Dec 2009 | Active | |
| Dart Energy (East England) Limited Secretary • Lawyer | 25 Jun 2009←6 Months→31 Dec 2009 | Active | |
Dart Energy (Lothian) Limited Secretary • Lawyer | 25 Jun 2009←6 Months→31 Dec 2009 | Dissolved | |
Dart Energy (Carbon Storage) Limited Secretary • Lawyer | 25 Jun 2009←6 Months→31 Dec 2009 | Dissolved | |
| Igas Energy Production Limited Secretary • Lawyer | 25 Jun 2009←6 Months→31 Dec 2009 | Active | |
| Dart Energy (Europe) Limited Secretary • Lawyer | 25 Jun 2009←6 Months→31 Dec 2009 | Active | |
