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10-Q/A - FORM 10-Q/A - Oasis Petroleum Inc.h78357e10vqza.htm
EX-31.1 - EX-31.1 - Oasis Petroleum Inc.h78357exv31w1.htm
EX-10.4 - EX-10.4 - Oasis Petroleum Inc.h78357exv10w4.htm
         
EXHIBIT 31.2
CERTIFICATION
I, Roy W. Mace, certify that:
  1.   I have reviewed this quarterly report on Form 10-Q/A of Oasis Petroleum Inc.; and
 
  2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.
         
     
Date: December 16, 2010  /s/ Roy W. Mace    
  Roy W. Mace   
  Senior Vice President and Chief Accounting Officer (Principal Financial and Accounting Officer)   
 

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