News Releases

HOUSTON, Oct. 26 /PRNewswire-FirstCall/ -- Oasis Petroleum Inc. (NYSE: OAS) plans to issue its press release announcing third quarter 2010 financial and operational results on Monday, November 8, 2010 after the close of trading on the NYSE. Additionally, the Company will host a conference call on Tuesday, November 9, 2010 at 9:30 a.m. Central Time to discuss its third quarter 2010 financial and operational results. Investors, analysts and other interested parties are invited to listen to the conference call via the Company's website at www.oasispetroleum.com or by dialing (877) 621-0256 (US participants) or (706) 634-0151 (International participants) with the Conference ID of 21228179. A recording of the conference call will be available by dialing (800) 642-1687 (US participants) or (706) 645-9291 (International participants) using the Conference ID of 21228179 beginning at 12:30 p.m. Central Time on the day of the call until Tuesday, November 16, 2010. The conference call will also be available for replay for 30 days at www.oasispetroleum.com.

About Oasis Petroleum Inc.

Oasis is an independent exploration and production company focused on the acquisition and development of unconventional oil and natural gas resources, primarily operating in the Williston Basin. For more information, please visit our website at www.oasispetroleum.com.

Contact:
Oasis Petroleum Inc.
Richard Robuck, (281) 404-9600
Director � Investor Relations

SOURCE Oasis Petroleum Inc.