UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

NOTICE OF EFFECTIVENESS

Effective Date: June 08, 2012
Form: S-4
CIK: 0000320575
Company Name: PIONEER DRILLING CO
File Number: 333-181545
CIK: 0001497341
Company Name: Pioneer Drilling Services, Ltd.
File Number: 333-181545-07
CIK: 0001497879
Company Name: Pioneer Production Services, Inc.
File Number: 333-181545-06
CIK: 0001497880
Company Name: Pioneer Global Holdings, Inc.
File Number: 333-181545-05
CIK: 0001497882
Company Name: Pioneer Well Services, LLC
File Number: 333-181545-04
CIK: 0001497878
Company Name: Pioneer Wireline Services Holdings, Inc.
File Number: 333-181545-03
CIK: 0001497886
Company Name: Pioneer Fishing & Rental Services, LLC
File Number: 333-181545-02
CIK: 0001497884
Company Name: Pioneer Wireline Services, LLC
File Number: 333-181545-01
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