AGREEMENT AND PLAN OF MERGER Among UNIT CORPORATION, UNIT DRILLING COMPANY, HICKMAN DRILLING COMPANY, H. C. HICKMAN, TRUSTEE OF THE H. C. HICKMAN 1988 REVOCABLE TRUST AGREEMENT, Dated August 8, 1988, BONNIE B. HICKMAN, TRUSTEE OF THE BONNIE B. HICKMAN...Agreement and Plan of Merger • December 5th, 1997 • Unit Corp • Crude petroleum & natural gas • Oklahoma
