EXHIBIT 10.1 TWELFTH AMENDMENT (this "Amendment") dated as of October 9, 2000, 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...Genesis Energy Lp • November 13th, 2000 • Wholesale-petroleum bulk stations & terminals • New York
