HOLLYFRONTIER CORP Form 10-Q: Quarterly report

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

2021-11-03: Form 10-Q; Period of report 2021-09-30; Description 10-Q; Document hfc-20210930.htm.
2021-08-06: Form 10-Q; Period of report 2021-06-30; Description 10-Q; Document hfc-20210630.htm.
2021-05-05: Form 10-Q; Period of report 2021-03-31; Description 10-Q; Document hfc-20210331.htm.
2020-11-05: Form 10-Q; Period of report 2020-09-30; Description 10-Q; Document hfc-20200930.htm.

Filed	Form	Period of report	Description	Document
2021-11-03	10-Q	2021-09-30	10-Q	hfc-20210930.htm
2021-08-06	10-Q	2021-06-30	10-Q	hfc-20210630.htm
2021-05-05	10-Q	2021-03-31	10-Q	hfc-20210331.htm
2020-11-05	10-Q	2020-09-30	10-Q	hfc-20200930.htm
2020-08-06	10-Q	2020-06-30	10-Q	hfc6-30x202010q.htm
2020-05-07	10-Q	2020-03-31	10-Q	hfc3-31x202010q.htm
2019-10-31	10-Q	2019-09-30	10-Q	hfc9-30x201910q.htm
2019-08-01	10-Q	2019-06-30	10-Q	hfc6-30x201910q.htm
2019-05-02	10-Q	2019-03-31	10-Q	hfc3-31x201910q.htm
2018-10-31	10-Q	2018-09-30	10-Q	hfc9-30x201810q.htm
2018-08-02	10-Q	2018-06-30	10-Q	hfc6-30x201810q.htm
2018-05-02	10-Q	2018-03-31	10-Q	hfc3-31x201810q.htm
2017-11-02	10-Q	2017-09-30	10-Q	hfc9-30x201710q.htm
2017-08-02	10-Q	2017-06-30	10-Q	hfc6-30x201710q.htm
2017-05-04	10-Q	2017-03-31	10-Q	hfc3-31x201710q.htm
2016-11-03	10-Q	2016-09-30	10-Q	hfc9-30x201610q.htm
2016-08-03	10-Q	2016-06-30	10-Q	hfc6-30x201610q.htm
2016-05-04	10-Q	2016-03-31	10-Q	hfc3-31x201610q.htm
2015-11-05	10-Q	2015-09-30	10-Q	hfc9-30x201510q.htm
2015-08-05	10-Q	2015-06-30	10-Q	hfc6-30x201510q.htm
2015-05-06	10-Q	2015-03-31	10-Q	hfc3-31x201510q.htm
2014-11-05	10-Q	2014-09-30	10-Q	hfc9-30x201410q.htm
2014-08-06	10-Q	2014-06-30	10-Q	hfc6-30x201410q.htm
2014-05-06	10-Q	2014-03-31	10-Q	hfc3-31x201410q.htm
2013-11-07	10-Q	2013-09-30	10-Q	hfc9-30x201310q.htm
2013-08-08	10-Q	2013-06-30	10-Q	hfc6-30x201310q.htm
2013-05-08	10-Q	2013-03-31	10-Q	hfc3-31x201310q.htm
2012-11-08	10-Q	2012-09-30	10-Q	hfc9-30x201210q.htm
2012-08-09	10-Q	2012-06-30	Quarterly report	hfc6-30x201210q.htm
2012-05-08	10-Q	2012-03-31	Quarterly report	hfc3-31x201210q.htm
2011-11-08	10-Q	2011-09-30	FORM 10-Q	d242147d10q.htm
2011-08-08	10-Q	2011-06-30	FORM 10-Q	d10q.htm
2011-05-09	10-Q	2011-03-31	FORM 10-Q	d80514e10vq.htm
2010-11-05	10-Q	2010-09-30	FORM 10-Q	d76880e10vq.htm
2010-08-06	10-Q	2010-06-30	FORM 10-Q	d74327e10vq.htm
2010-05-07	10-Q	2010-03-31	FORM 10-Q	c00562e10vq.htm
2009-11-06	10-Q	2009-09-30	FORM 10-Q	d70004e10vq.htm
2009-08-10	10-Q	2009-06-30	FORM 10-Q	d68746e10vq.htm
2009-05-08	10-Q	2009-03-31	FORM 10-Q	d67632e10vq.htm
2008-11-07	10-Q	2008-09-30	FORM 10-Q	d65049e10vq.htm
2008-08-08	10-Q	2008-06-30	FORM 10-Q	d59380e10vq.htm
2008-05-12	10-Q	2008-03-31	FORM 10-Q	d56726e10vq.htm
2007-11-09	10-Q	2007-09-30	FORM 10-Q	d51322e10vq.htm
2007-08-09	10-Q	2007-06-30	FORM 10-Q	d48960e10vq.htm
2007-05-10	10-Q	2007-03-31	FORM 10-Q	d46424e10vq.htm
2006-11-06	10-Q	2006-09-30	FORM 10-Q	d40935e10vq.htm
2006-08-07	10-Q	2006-06-30	FORM 10-Q	d38504e10vq.htm
2006-05-08	10-Q	2006-03-31	FORM 10-Q	d35883e10vq.htm
2005-11-07	10-Q	2005-09-30	FORM 10-Q	d30044e10vq.htm
2005-08-08	10-Q	2005-06-30	FORM 10-Q	d27776e10vq.htm
2005-05-10	10-Q	2005-03-31	FORM 10-Q	d25257e10vq.htm
2004-11-09	10-Q	2004-09-30	FORM 10-Q	d19940e10vq.htm
2004-08-06	10-Q	2004-06-30	FORM 10-Q	d17349e10vq.htm
2004-05-07	10-Q	2004-03-31	FORM 10-Q	d15203e10vq.htm
2003-11-14	10-Q	2003-09-30	FORM 10-Q	d10564e10vq.txt
2003-06-12	10-Q	2003-04-30	FORM 10-Q	d06745e10vq.txt
2003-03-07	10-Q	2003-01-31	FORM 10-Q	d03841e10vq.txt
2002-12-12	10-Q	2002-10-31	FORM 10-Q	d01926e10vq.txt
2002-06-07	10-Q	2002-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 2002	d97577e10vq.txt
2002-03-08	10-Q	2002-01-31	FORM 10-Q FOR QUARTER ENDED JANUARY 31, 2002	d94838e10-q.txt
2001-12-13	10-Q	2001-10-31	FORM 10-Q FOR QUARTER ENDED OCTOBER 31, 2001	d92911e10-q.txt
2001-06-08	10-Q	2001-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 2001	d88196e10-q.txt
2001-03-09	10-Q	2001-01-31	FORM 10-Q FOR QUARTER ENDED JANUARY 31, 2001	d84881e10-q.txt
2000-12-15	10-Q	2000-10-31	FORM 10-Q FOR QUARTER ENDED OCTOBER 31, 2000	d82686e10-q.txt
2000-06-14	10-Q	2000-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 2000	0001.txt
2000-03-16	10-Q	2000-01-31	FORM 10-Q FOR QUARTER ENDED JANUARY 31, 2000
1999-12-14	10-Q	1999-10-31	FORM 10-Q FOR QUARTER ENDED OCTOBER 31, 1999
1999-06-11	10-Q	1999-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 1999
1999-03-17	10-Q	1999-01-31	FORM 10-Q FOR QUARTER ENDED JANUARY 31, 1999
1998-12-15	10-Q	1998-10-31	FORM 10-Q FOR QUARTER ENDED OCTOBER 31, 1998
1998-06-12	10-Q	1998-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 1998
1998-03-06	10-Q	1998-01-31	FORM 10-Q FOR QUARTER ENDED JANUARY 31, 1998
1997-12-15	10-Q	1997-10-31	FORM 10-Q FOR QUARTER ENDED OCTOBER 31, 1997
1997-06-06	10-Q	1997-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 1997
1997-03-07	10-Q	1997-01-31	FORM 10-Q FOR QUARTER ENDING JANUARY 31, 1997
1996-12-13	10-Q	1996-10-31	FORM 10-Q PERIOD ENDING OCTOBER 31, 1996
1996-06-11	10-Q	1996-04-30	FORM 10-Q FOR QUARTER ENDED APRIL 30, 1996
1996-03-11	10-Q	1996-01-31	FORM 10-Q FOR QUARTER ENDED JANUARY 31, 1995
1995-12-14	10-Q	1995-10-31	FORM 10-Q
1995-06-07	10-Q	1995-04-30	FORM 10-Q
1995-03-17	10-Q	1995-01-31	FORM 10-Q FOR 1/31/95
1994-12-14	10-Q	1994-10-31	FORM 10-Q
1994-06-14	10-Q	1994-04-30	FORM 10-Q
1994-03-11	10-Q	1994-01-31	FORM 10-Q