Oil: 1980 to 2002
| Change since | |
 |
1970 |
 |
1990 |
|
1998 |
Coverage: United Kingdom
Source: DTI
Coverage: United Kingdom
Source: DTI
- Estimated oil and gas reserves have both dropped by about one quarter since 1998.
- In earlier years, estimates of remaining reserves had stayed at broadly similar levels despite the large increase in oil and gas extracted, due to new discoveries being made and new technology allowing exploitation of discoveries previously regarded as not viable.