 |
 |
 |
 |
 |
| Consolidated subsidiaries |
98-00 |
97-99 |
96-98 |
 |
| Finding costs ($/boe) (1) |
0.7 |
0.8 |
1.1 |
 |
| Reserve replacement costs ($/boe) (2) |
3.7 |
3.8 |
4.4 |
 |
| Reserve replacement rate (%) (3) |
189 |
183 |
141 |
 |
 |
 |
| Consolidated subsidiaries |
2000 |
1999 |
1998 |
 |
| Operating costs ($/boe) |
2.5 |
2.8 |
3.0 |
 |
| Exploration costs ($/boe) |
0.7 |
0.8 |
1.0 |
 |
| DD&A ($/boe) |
4.0 |
3.8 |
3.9 |
 |
| Technical costs ($/boe) (4) |
7.2 |
7.4 |
7.9 |
 |
 |
 |
| All subsidiaries |
2000 |
1999 |
1998 |
 |
| Reserve life (years) (5) |
13.8 |
13.9 |
12.7 |
 |
(1) = (exploration costs + unproved property acquisition) / (revision + extension, discoveries)
(2) = (total costs incurred) / (revision + extension, discoveries + acquisitions)
(3) = (revision + extension, discoveries + acquisition – sales of reserves) / production of the period
(4) = (production costs + exploration expenses + DD&A (excluding FAS 121)) / production of the year
(5) = (reserves at year-end) / production of the year |