Gaitsu engineers presents fabric belt and rope mop-type oil skimmers that almost any hydrocarbon [oils] from the surface of industrial process liquids [coolants, etc] , and also from subsurfaces. The oleophilic fabric belt or rope by means of an infinte loop selectively accumlates oil while repelling water. These mop wringers drive the mop through the oil and back to the map wringers, where the squeeze rollers wring the oil out. The recovered product can be collected in a holding tank below the mop wringers. The oil skimmers can be shifted with ease from place-to-place and require only a very little time for reinstalling. They are in varying length and can be added/extended too with ease. Application include: coolant reservoirs, api separators, oil water treatment systems, settling ponds, scale pits, parts washers, monitoring wells, machine tools, cnc machines, etc.