Exhibit 4.3(c) AMENDMENT TO RIGHTS AGREEMENT This Amendment, dated as of January 1, 2003 (this "Amendment"), to the Rights Agreement, dated as of March 28, 1991, as amended and restated as of December 8, 2000 (the "Rights Agreement"), is among Cabot...Rights Agreement • April 30th, 2003 • Cabot Oil & Gas Corp • Crude petroleum & natural gas • Delaware
