| 10/22/2007 | BKHY | Moody's may up Oglebay
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| 10/15/2007 | BKHY | S&P may up Oglebay Norton
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| 7/27/2007 | BK | S&P puts Oglebay Norton on watch
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| 7/26/2007 | BK | Moody's may cut Oglebay
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| 7/25/2007 | BKHY | S&P: Oglebay Norton developing
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| 9/28/2006 | BKDD | Moody's introduces new ratings
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| 7/31/2006 | BK | Market Commentary: Laidlaw breaks; Dole trades up on speculation of grid movement; Secondary sees better tone
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| 6/28/2006 | BKCV | S&P rates Oglebay Norton B, loan B+
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| 6/27/2006 | BKCVHY | Moody's rates Oglebay Norton, loan B1
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| 6/26/2006 | BK | Oglebay sets Tuesday launch for $230 million credit facility
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| 6/23/2006 | BK | Oglebay to launch $230 million credit facility during June 26 week
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| 1/31/2005 | BKCVDD | Oglebay exits Chapter 11, issues $85 million convertibles, obtains $310 million bank facility
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| 4/28/2004 | BKDD | Oglebay Norton files $305 million exit financing
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| 2/24/2004 | BKDD | Oglebay Norton DIP priced at Libor plus 400 basis points
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| 10/23/2003 | BKDDHY | Oglebay Norton intends to find restructuring plan that has value for all stakeholders
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| 9/12/2003 | BKDDHY | Oglebay Norton amends loan, providing covenant relief and allowing for borrowings
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| 9/2/2003 | BKDDHY | S&P changes watch on ATA to negative
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| 8/15/2003 | BKDDHY | Oglebay waivers expire, talks continue
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| 8/1/2003 | BKDDHY | S&P lowers Huntsman outlook
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| 7/10/2003 | BKDD | Oglebay Norton gets waiver resetting covenants in note purchase agreement
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| 6/16/2003 | BKDD | Oglebay Norton extends waiver of covenants through Aug. 15
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| 5/7/2003 | BKDDHY | Moody's cuts Oglebay Norton
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| 4/21/2003 | BK | Oglebay Norton gets waiver, resetting almost all covenants
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| 2/27/2003 | BKHY | Credit analyst warns Oglebay assets offer little recovery value for bondholders
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| 11/25/2002 | BK | Moody's rates new Levi notes B3, existing notes on upgrade review
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| 10/25/2002 | BKHY | Oglebay Norton sells $75 million notes, extends credit facility
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| 8/5/2002 | BK | S&P lowers Lucent outlook
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| 4/29/2002 | BK | Oglebay Norton selects CIBC as financial advisor on refinancing bank debt
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