| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2000-02-11 | WANGER ASSET MANAGEMENT LP | TESORO PETROLEUM CORP /NEW/ | 9 | 11.0% | EDGAR |
| SC 13G | 2000-02-03 | DIMENSIONAL FUND ADVISORS INC | TESORO PETROLEUM CORP /NEW/ | 2,199,800 | 6.8% | EDGAR |
| SC 13G | 2000-02-03 | DIMENSIONAL FUND ADVISORS INC | TESORO PETROLEUM CORP /NEW/ | 2,199,800 | 6.8% | EDGAR |
| SC 13G | 2000-02-03 | DIMENSIONAL FUND ADVISORS INC | TESORO PETROLEUM CORP /NEW/ | 2,199,800 | 6.8% | EDGAR |