Dr William L Leffler's recent professional assignments

  • ​Expert witness for a major oil company in litigation concerning natural gas liquids shipping
  • Expert witness for a pipeline company concerning natural gas liquids specifications
  • ​Scripting for a History Channel production company for the energy portion of "Life After People" series
  • ​Authored the petrochemical section in the UNESCO Energy Encyclopedia  
  • ​Expert witness for State of Alaska inquiry on refining values of crude oil
  • Law firm assistance on benzene origins and contents
  • ​Explore the use of scenarios in planning with an Oil & Gas Company
  • ​Expert witness and analysis of the origins of a 1950s alkylation plant waste material
  • ​Preparation of ASME's "Energy Choices" series