Unit Corp

2011 - Form 10K

XBRL Item - EX - 101INS - XBRL Instance Document

XBRL Item - EX - 101SCH - XBRLTaxonomy Extension Schema Document

XBRL Item - EX - 101CAL - XBRLTaxonomy Extension Calculation Linkbase Document

XBRL Item - EX - 101DEF - XBRLTaxonomy Extension Definition Linkbase Document

XBRL Item - EX - 101LAB - XBRLTaxonomy Extension Label Linkbase Document

XBRL Item - EX - 101PRE - XBRLTaxonomy Extension Presentation Linkbase Document


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