DALLAS--(BUSINESS WIRE)-- Pioneer Southwest Energy Partners L.P. (PSE) (Pioneer Southwest) today announced its fourth quarter 2012 earnings press release is scheduled to be issued after the close of trading on the New York Stock Exchange on Wednesday, February 13, 2013.

A conference call is scheduled for Thursday, February 14, 2013 at 11:00 a.m. Central Time to discuss the fourth quarter results. Instructions on how to listen to the call and view the accompanying presentation are shown below.

Internet: www.pioneersouthwest.com

Select Investors then Earnings Calls & Webcasts to listen to the discussion and view the presentation.

Telephone: Dial (888) 556-4997 confirmation code: 7448707 five minutes before the call to listen to the discussion. View the presentation via Pioneer Southwests internet address above.

A replay of the webcast will be archived on Pioneer Southwests website. A telephone replay will be available through March 11 by dialing (888) 203-1112, confirmation code: 7448707.

Pioneer Southwest is a Delaware limited partnership headquartered in Dallas, Texas, with current production and drilling operations in the Spraberry field in West Texas.

Special Notice Regarding Pioneer Natural Resources Company Fourth Quarter Earnings Call: On Thursday, February 14, at 9:00 a.m. Central Time, Pioneer Natural Resources Company (PNRC) will conduct its fourth quarter 2012 earnings conference call and webcast. Pioneer Southwest was formed by PNRC to own and acquire oil and gas assets in Pioneer Southwests area of operations. As such, it is possible that discussion on the PNRC call will include matters regarding Pioneer Southwest. To listen to the PNRC call, dial (877) 718-5108 confirmation code: 7431932 five minutes before the call. The accompanying presentation can be viewed at www.pxd.com. Select Investors, then Earnings & Webcasts to listen to the discussion and view the presentation. A replay of the webcast will be archived on PNRCs website. A telephone replay will be available through March 11 by dialing (888) 203-1112, confirmation code: 7431932.

Pioneer Southwest Energy Partners L.P.
Investors-
Frank Hopkins 972-969-4065
Eric Pregler 972-969-5756
or
Media and Public Affairs-
Susan Spratlen 972-969-4018
Suzanne Hicks 972-969-4020

Source: Pioneer Southwest Energy Partners L.P.

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