| 5/21/2013 | BKHYIG | S&P upgrades HollyFrontier
|
| 7/12/2011 | BK | Moody's ups HollyFrontier
|
| 7/6/2011 | BKHY | S&P ups HollyFrontier, Frontier Oil
|
| 5/24/2011 | BKHY | S&P: Holly, Frontier Oil remain on positive watch
|
| 2/24/2011 | BKHY | S&P: Holly, Frontier on positive watch
|
| 2/23/2011 | BKHY | Moody's may up Holly, Frontier
|
| 2/22/2011 | BKHY | Holly to combine with Frontier Oil in all-stock merger of equals
|
| 11/9/2010 | BKHY | Moody's rates Frontier Oil notes Ba3
|
| 11/9/2010 | BKHY | S&P rates Frontier Oil notes BB
|
| 9/9/2008 | BKHY | Moody's assigns Frontier Oil notes Ba3
|
| 9/8/2008 | BKHY | S&P assigns Frontier Oil notes BB
|
| 9/4/2008 | BKHY | S&P ups Frontier Oil
|
| 6/30/2008 | BKHY | S&P: Frontier Oil on positive watch
|
| 6/24/2008 | BK | Frontier Oil amends revolver, lifting size, providing for possible price increase
|
| 10/4/2007 | BK | Frontier Oil amends, restates loan, lifting amount, extending term
|
| 9/25/2006 | BKCVHY | Moody's introduces new ratings
|
| 7/19/2005 | BKHY | Fitch ups Frontier Oil
|
| 11/23/2004 | BK | Frontier Oil gets $225 million amended and restated revolver
|
| 9/21/2004 | BKHY | Moody's rates Frontier Oil notes B1
|
| 9/21/2004 | BKHY | Fitch: Frontier Oil positive
|
| 9/20/2004 | BKHY | S&P: Frontier Oil unaffected
|
| 1/21/2004 | BKHY | S&P: Frontier Oil unaffected by refinery fire
|
| 11/20/2003 | BKHY | S&P: No affect on Frontier Oil credit from redemption
|
| 8/22/2003 | BKHY | Moody's cuts Collins & Aikman
|
| 8/21/2003 | BKHY | Moody's cuts Marsh Supermarkets
|
| 8/1/2003 | BKHY | S&P puts Associated Materials on watch
|
| 7/10/2003 | BKHY | S&P cuts Tenet to junk
|
| 5/29/2003 | BK | Frontier Oil obtains $175 million revolver
|
| 5/19/2003 | BKHY | Moody's rates Province notes B3
|
| 4/1/2003 | BKHY | S&P rates Allied Waste notes BB-, bank loan BB, convertibles B
|
| 3/31/2003 | BKHY | S&P puts Frontier Oil on positive watch
|
| 8/20/2002 | BK | S&P cuts Charter two notches
|
