"Safety-Kleen Introduces KLEEN+ Brand of Base Oils – a Revolutionary Combination of Sustainability and Superior Quality"
"Safety-Kleen Rebrands Base Oils"
"Safety-Kleen launches new base oil that reduced greenhouse gas emissions by as much as 78%"
"Safety-Kleen launches new base oil that reduced greenhouse gas emissions by as much as 78%"
"Exxon Predicts Fewer Base Oil Investments"
"Indiana’s green jobs growth is expected to be well above the national average in the coming years"