Common Contracts

UNIT CORPORATION, THE SUBSIDIARY GUARANTORS PARTIES HERETO AND WILMINGTON TRUST, NATIONAL ASSOCIATION as TRUSTEE FIRST SUPPLEMENTAL INDENTURE Dated as of July 24, 2012

First Supplemental Indenture • July 25th, 2012 • Unit Corp • Crude petroleum & natural gas • New York

• Contract Type
  First Supplemental Indenture
• Filed
  July 25th, 2012
• Company
  Unit Corp
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE is made as of the 24th day of July, 2012, by and among UNIT CORPORATION, a Delaware corporation (the “Company”), the Subsidiary Guarantors (as herein defined) parties hereto (each, a “Subsidiary Guarantor” and, collectively, the “Subsidiary Guarantors”) and WILMINGTON TRUST, NATIONAL ASSOCIATION, a national banking association duly organized and existing under the laws of the United States of America, as trustee (the “Trustee”):

UNIT CORPORATION, THE SUBSIDIARY GUARANTORS PARTIES HERETO AND WILMINGTON TRUST FSB as TRUSTEE FIRST SUPPLEMENTAL INDENTURE Dated as of May 18, 2011

First Supplemental Indenture • May 18th, 2011 • Unit Corp • Crude petroleum & natural gas • Delaware

• Contract Type
  First Supplemental Indenture
• Filed
  May 18th, 2011
• Company
  Unit Corp
• Industry
  Crude petroleum & natural gas
• Jurisdiction
  Delaware

THIS FIRST SUPPLEMENTAL INDENTURE is made as of the 18th day of May, 2011, by and among UNIT CORPORATION, a Delaware corporation (the “Company”), the Subsidiary Guarantors (as herein defined) parties hereto (each, a “Subsidiary Guarantor” and, collectively, the “Subsidiary Guarantors”) and WILMINGTON TRUST FSB, a federal savings bank duly organized and existing under the laws of the United States of America, as trustee (the “Trustee”):