| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2002-02-14 | FMR CORP | SCHLUMBERGER LTD /NY/ | 43,972,478 | 7.6% | EDGAR |
| SC 13D/A | 2001-10-03 | SCHLUMBERGER LTD /NY/ | HANOVER COMPRESSOR CO / | 51,491 | 1.8% | EDGAR |
| SC 13D | 2001-09-10 | SCHLUMBERGER LTD /NY/ | HANOVER COMPRESSOR CO / | 51,491 | 0.1% | EDGAR |
| SC 13D/A | 2001-04-20 | SCHLUMBERGER LTD /NY/ | SEMA GROUP PLC | 11 | 13.0% | EDGAR |
| SC 13D | 2001-03-15 | SCHLUMBERGER LTD /NY/ | SEMA GROUP PLC | 11 | 13.0% | EDGAR |