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

NOTICE OF EFFECTIVENESS

Effective Date: June 06, 2018
Form: S-4
CIK: 0001255474
Company Name: WHITING PETROLEUM CORP
File Number: 333-225232
CIK: 0000727097
Company Name: WHITING OIL & GAS CORP
File Number: 333-225232-04
CIK: 0001636560
Company Name: Whiting US Holding Co
File Number: 333-225232-03
CIK: 0001322866
Company Name: Whiting Canadian Holding Co ULC
File Number: 333-225232-02
CIK: 0001501759
Company Name: WHITING RESOURCES CORP.
File Number: 333-225232-01
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