Holding in Company

Enterprise Oil PLC
3 August 2000


Schedule 10 - Notification of Major Interests in Shares

1   Name of company:
Enterprise Oil plc

2   Name of shareholder having a major interest:
CGNU plc

3   Please state whether notification indicates that it is in respect of
holding of the shareholder named in 2 above or in respect of a non-beneficial
interest or in the case of an individual holder if it is a holding of that
person's spouse or children under the age of 18:
In respect of the above holder

4   Name of registered holder(s) and, if more than one holder, the number of
shares held by each of them:
Morley Fund Management Limited                                      8,525,308
Norwich Union Investment Management Limited                        10,243 974

5   Number of shares/amount of stock acquired:
18,769,282

6   Percentage of issued class:
3.76

7   Number of shares/amount of stock disposed:


8   Percentage of issued class:


9   Class of security:
Ordinary shares of 25 pence each

10  Date of transaction:
1 August 2000

11  Date company informed:
3 August 2000

12  Total holding following this notification:
18,769,282

13  Total percentage holding of issued class following this notification:
3.76%

14  Contact name for queries:
M J White

15 Contact telephone number:
020 7925 4305

16  Name of company official responsible for making notification:
A Drew,  Corporate Assistant

17  Date of notification:
3 August 2000

Additional Information:
Notification following the recent merger of CGU plc and Norwich Union plc.