320 filings
Page 13 of 16
8-K
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14 Oct 09
This presentation contains forward-looking statements. These forward-looking statements relate to, among other things, our
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8-K
phfawvcnbxb0g7p
13 Oct 09
Chaparral Energy and United Refining Energy to Merge
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DEFA14A
hol71fn8c9vhn7liosh
13 Oct 09
Additional proxy soliciting materials
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8-K
sjjmjbqz
9 Jun 09
Completion of Acquisition or Disposition of Assets
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8-K
y56r743lymlxljs
3 Jun 09
Termination of a Material Definitive Agreement
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8-K
ive0q 30h
26 May 09
Entry into a Material Definitive Agreement
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8-K
r18lh
17 Apr 09
Other Events
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8-K
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4 Mar 09
Results of Operations and Financial Condition
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RW
xrbo2tblqs31qx
29 Dec 08
Registration withdrawal request
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8-K
lo4 pvxd8ank8
24 Dec 08
Entry into a Material Definitive Agreement
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8-K
lb0ex zjyg
17 Dec 08
Chaparral Energy and Edge Petroleum Terminate Planned Merger
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8-K
deqcylzu
14 Nov 08
Results of Operations and Financial Condition
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EFFECT
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9 Sep 08
Notice of effectiveness
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424B3
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9 Sep 08
Prospectus supplement
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