QUAKER STATE CORP of IRVING, TX filed a PRE 14A with the SEC on 1998-03-04. Industry: Petroleum Refining.
| Filed | Form |
|---|---|
| 1998-03-27 | DEF 14A |
| 1998-03-04 | PRE 14A |
| 1997-03-27 | DEF 14A |
| 1997-03-12 | PRE 14A |
| 1996-03-29 | DEF 14A |
| 1995-03-29 | DEF 14A |
| 1995-03-27 | PRER14A |
| 1995-03-14 | PRE 14A |
| 1994-03-28 | DEF 14A |