One former Enron Europe director said: 'The trading business Joe and Richard were running was highly successful.' However, documents filed at Companies House show that in the year to mid-2000, Enron Europe went from having net assets of £41m to liabilities of £341m. The company could be described as a 'going concern' only thanks to a letter from Enron Corp, its parent company in the US, promising to pay any debts as they fell due.