EXHIBIT 4(c) ELEVENTH AMENDMENT TO LOAN AGREEMENT THIS ELEVENTH AMENDMENT TO LOAN AGREEMENT (this "Eleventh Amendment") is made and entered into as of the 16th day of March, 2004, by and among SERVICE TRANSPORT COMPANY, a Texas corporation ("Service...Loan Agreement • March 24th, 2004 • Adams Resources & Energy Inc • Wholesale-petroleum & petroleum products (no bulk stations) • Texas
