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BiographyScott D. Sheffield was elected Chief Executive Officer and director of the General Partner in June 2007 and Chairman of the Board in May 2008. Mr. Sheffield,... |
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| Date | Designation | Entity | Entity Description | Country |
|---|---|---|---|---|
| 2007 | Pioneer Southwest Energy Partners LP | -- | United States | |
| 1999 | Pioneer Natural Resources Co | Company In Energy | United States |