HOLLYFRONTIER CORP Form PRE 14A: Preliminary proxy statement
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2007-04-06: Form PRE 14A; Period of report 2007-05-24; Description PRELIMINARY PROXY STATEMENT; Document d45385ppre14a.htm.
- 2006-03-30: Form PRE 14A; Period of report 2006-05-11; Description PRELIMINARY PROXY STATEMENT; Document d34501ppre14a.htm.
- 2004-03-26: Form PRE 14A; Period of report 2004-05-13; Description PRELIMINARY PROXY STATEMENT; Document d14006p1pre14a.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2007-04-06 | PRE 14A | 2007-05-24 | PRELIMINARY PROXY STATEMENT | d45385ppre14a.htm |
| 2006-03-30 | PRE 14A | 2006-05-11 | PRELIMINARY PROXY STATEMENT | d34501ppre14a.htm |
| 2004-03-26 | PRE 14A | 2004-05-13 | PRELIMINARY PROXY STATEMENT | d14006p1pre14a.htm |