EXHIBIT 10.19 SEVENTH AMENDMENT (this "Amendment") dated as of March 20, 1998, to the Master Credit Support Agreement dated as of December 3, 1996, between GENESIS CRUDE OIL, L.P., a Delaware limited partnership ("Genesis OLP"), and SALOMON SMITH...Master Credit Support Agreement • May 11th, 1998 • Genesis Energy Lp • Wholesale-petroleum bulk stations & terminals • New York
