320 filings
Page 16 of 16
8-K
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17 Nov 06
Chaparral Energy 3rd Quarter Conference Call
12:00am
10-Q
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14 Nov 06
Quarterly report
12:00am
8-K
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6 Nov 06
Chaparral Energy Closes Acquisition
12:00am
8-K
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4 Oct 06
Entry into a Material Definitive Agreement
12:00am
8-K
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25 Sep 06
Acquisition of Calumet Oil Company
12:00am
8-K
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19 Sep 06
Chaparral Energy Inc. Announces Agreement to
12:00am
8-K
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8 Sep 06
Entry into a Material Definitive Agreement
12:00am
8-K
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28 Aug 06
Entry into a Material Definitive Agreement
12:00am
EFFECT
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17 Aug 06
Notice of effectiveness
12:00am
424B3
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17 Aug 06
Prospectus supplement
12:00am
POS AM
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11 Aug 06
Prospectus update (post-effective amendment)
12:00am
424B3
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19 Jul 06
Prospectus supplement
12:00am
EFFECT
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19 Jul 06
Notice of effectiveness
12:00am
CORRESP
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17 Jul 06
Correspondence with SEC
12:00am
S-4/A
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12 Jul 06
Registration of securities issued in business combination transactions (amended)
12:00am
S-4
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6 Jun 06
Registration of securities issued in business combination transactions
12:00am
S-1/A
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14 Feb 06
IPO registration (amended)
12:00am
S-1
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29 Dec 05
IPO registration
12:00am