Oil recovery from oil sludge For many countries like Indonesia, domestic oil production is in decline and the likelihood of discovering neither large nor new oil reserves is low. These countries must then rely on foreign imports, which can slow economic growth and employment and aggravate trade deficits. As the oil price rised during year 2008, attempt to recover oil from oil sludge became advantageous both from economic and environmentally point of view. Production of oil sludge as oil refinery by-product in Indonesia exceeding 2,000 ton.day-1. Economically attractive because approximately 15% (see Table I) of oil could be recovered from oil sludge. Also environmentally attractive because the remaining oil sludge became less in the oil content thus make it easier to handle with. However, the low oil prices that prevailed during the end of year 2008 lead to a shift in focus from enhanced oil recovery to enhanced oil remediation processes. Table I showed the properties of oil sludge and the experiments parameter. The most successful attempt in using biosurfactant to recover oil from oil sludge reported by