Governance

Management Team

Grant E. Sims has served as Director and Chief Executive Officer since August 2006. Mr. Sims had been a private investor since 1999. He was affiliated with Leviathan Gas Pipeline Partners, L.P. from 1992 to 1999, serving as the Chief Executive Officer and a director beginning in 1993 until he left to pursue personal interests, including investments. Leviathan (subsequently known as El Paso Energy Partners, L.P. and then GulfTerra Energy Partners, L.P.) was a NYSE listed master limited partnership.

Steven R. Nathanson became President and Chief Operating Officer in February 2010. He served as President of our Refinery Services Division since 2002. As an industry veteran in both upstream and downstream operations including petrochemicals, Mr. Nathanson has more than 30 years of international operations, engineering, marketing and sales experience.

Robert V. Deere has served as Chief Financial Officer since October 2008. Mr. Deere served as Vice President, Accounting and Reporting at Royal Dutch Shell from 2003 to 2008, and in increasing positions of responsibility with Shell for the five years prior to that appointment.

Karen N. Pape has served as Senior Vice President since July 2007 and as Controller of our general partner since March 2002. Ms. Pape served as Director of Finance and Administration of our general partner since December 1996.