UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:
April 11, 2012 5:00 P.M.
Form:
S-4
CIK:
0001127342
Company Name:
GMX RESOURCES INC
File Number:
333-179169
CIK:
0001509165
Company Name:
Diamond Blue Drilling Co.
File Number:
333-179169-02
CIK:
0001509164
Company Name:
Endeavor Pipeline, Inc.
File Number:
333-179169-01