EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN HOLLY CORPORATION AND GIANT INDUSTRIES, INC. DATED AS OF APRIL 14, 1998 TABLE OF CONTENTS ARTICLE I 1.01. The Merger 1.02. Closing 1.03. Effective Time 1.04. Effects of the Merger 1.05....Agreement and Plan of Merger • April 20th, 1998 • Giant Industries Inc • Petroleum refining • Arizona
