Notice of Effectiveness
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: December 26, 2018
Accession Number: 0001104659-18-073847
Submission Type: POS AM
CIK: 0001447382
Company Name: Ocean Rig UDW Inc.
File Number: 333-202829