Georgetown company to help 1,000 UPS trucks go green By: Austin Business Journal via Business Journals March 05, 2014 at 11:40 AM EST CleanFuel USA Inc. has reached an agreement to supply liquid propane injection systems to 1,000 propane-fueled UPS trucks and refueling stations... Read More >> Related Stocks: United Parcel Service iPath Dow Jones-Goldman Sachs Crude Oil Fund