pneumatic tanker experience?

A majority of my loads the last 15 years were at least 50% Oilfield.Mostly west of Bakersfield, some of the field work was also geothermal well El Centro, and Mamoth north of Bishop.

Also serviced cement batch plants, mines like mtn pass,ca. basicly Sugar,Salt,Sand, Cement, Ash, Caustic Soda, Dirty Water, Heavy water from Battlecreek. Not actual any actual petroleum just the service products, drilling fluids,Barite, Bentonite, etc...