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Filing Details

Accession Number:: 0001209191-11-053433
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-10-31 19:27:43
Reporting Period:: 2011-10-27

Filing Date:: 2011-10-31
Accepted Time:: 2011-10-31 19:27:43
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1486159	Oasis Petroleum Inc.	OAS	Crude Petroleum & Natural Gas (1311)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1229915	L Robert Zorich	1100 Louisiana Suite 3150 Houston TX 77002		Yes	No	Yes	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2011-10-27	5,000,000	$30.95	14,284,753	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	7,200	Direct

Footnotes

On October 27, 2011, EnCap Energy Capital Fund VI, L.P. ("EnCap Fund VI"), EnCap VI-B Acquisitions, L.P. ("EnCap VI-B") and EnCap Energy Capital Fund VII, L.P. ("EnCap Fund VII" and, together with EnCap Fund VI and EnCap VI-B, the "EnCap Funds") collectively sold 5,000,000 shares of common stock of Oasis Petroleum Inc. in a block trade. EnCap Fund VI sold 2,118,055 shares, EnCap VI-B sold 1,159,384 shares and EnCap Fund VII sold 1,722,561 shares.
The EnCap Funds are controlled indirectly by David B. Miller, D. Martin Phillips, Gary R. Petersen, and Robert L. Zorich (the "Managing Directors"). The Managing Directors are members of RNBD GP LLC ("RNBD") and any action taken by RNBD to dispose or acquire securities has to be unanimously approved by all four members. RNBD is the sole member of EnCap Investments GP, L.L.C. ("EnCap Investments GP"), which is the general partner of EnCap Investments L.P. ("EnCap Investments LP"), which is the general partner of EnCap Equity Fund VI GP, L.P. ("EnCap Fund VI GP") and EnCap Equity Fund VII GP, L.P. ("EnCap Fund VII GP").
EnCap Fund VI GP is the sole general partner of EnCap Fund VI and EnCap Fund VII GP is the sole general partner of EnCap Fund VII. EnCap Fund VI GP is also the general partner of EnCap Energy Capital Fund VI-B ("EnCap Fund VI-B"), which is the sole member of EnCap VI-B Acquisitions GP, LLC ("EnCap VI-B GP"), which is the sole general partner of EnCap VI-B. Therefore, the Managing Directors, RNBD, EnCap Investments GP, EnCap Investments LP, EnCap Fund VI GP, EnCap Fund VII GP, EnCap Fund VI-B, and EnCap VI-B GP may be deemed to beneficially own the reported securities.
This report is filed in connection with the Form 4 jointly filed today by the EnCap Funds and Messrs. Miller, Phillips and Petersen.
The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the reported securities for purposes of Section 16 or for any other purpose.
Represents shares of restricted stock received by the reporting person from the issuer as director compensation.