| Company | Timeline | Status | |
| Premier Oil Aberdeen Services Limited Director • Oil Economist | 17 Dec 1992←1 Year 7 Months→3 Aug 1994 | Active | |
| Premier Oil Far East Limited Director • Oil Economist | 17 Dec 1992←1 Year 7 Months→3 Aug 1994 | Liquidation | |
| Maghreb Offshore Limited Director • Oil Economist | 17 Dec 1992←1 Year 7 Months→3 Aug 1994 | Dissolved | |
| Premier Oil South Andaman Limited Director • Oil Economist | 17 Dec 1991←2 Years 7 Months→3 Aug 1994 | Active | |
| Premier Oil Group Limited Director • Oil Economist | 7 Aug 1990←3 Years→3 Aug 1994 | Active | |
| Premier Oil Exploration Limited Director • Oil Economist | 27 Apr 1990←4 Years→3 Aug 1994 | Liquidation | |
| Castrol Group Holdings Limited Director • Oil Economist | 2 Jun 1989←2 Years 11 Months→8 May 1992 | Active | |
| Al Haj Pakistan Exploration Limited Director • Oil Economist | 1 Jan 1970←24 Years→3 Aug 1994 | Active | |
