UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: January 23, 2008 2:00 P.M.
Form: S-4
CIK: 0001346980
Company Name: Chaparral Energy, Inc.
File Number: 333-145128
CIK: 0001364760
Company Name: Chaparral Real Estate, L.L.C.
File Number: 333-145128-10
CIK: 0001364763
Company Name: Chaparral Resources, L.L.C.
File Number: 333-145128-09
CIK: 0001364759
Company Name: Chaparral CO2, L.L.C.
File Number: 333-145128-08
CIK: 0001364764
Company Name: NorAm Petroleum, L.L.C.
File Number: 333-145128-07
CIK: 0001364757
Company Name: Chaparral Energy, L.L.C.
File Number: 333-145128-06
CIK: 0001382458
Company Name: CEI Pipeline, L.L.C.
File Number: 333-145128-05
CIK: 0001364765
Company Name: CEI Acquisition, L.L.C.
File Number: 333-145128-02
CIK: 0001408822
Company Name: Green Country Supply, Inc.
File Number: 333-145128-01