(Reuters) -Exxon Mobil Corp ( XOM ) has started production at new facilities at its Singapore oil refinery complex to produce base stocks from residue fuel, it said on Tuesday.

The technology combines processes to convert fuel oil and other bottom-of-the-barrel crude products into higher-value lube base stocks and distillates, the company said.

"The new facilities expand our Group II base stocks production capacity by 20,000 barrels per day, including up to 6,000 barrels per day of the new-to-industry EHC 340 MAXTM," Exxon stated.

The base stocks, designed for commercial vehicles and industrial applications, are used in engine oils, gear oils, marine oils, and greases.

Exxon's Jurong Island crude processing capacity is 592,000 barrels per day.