Shale oil extraction Energy estimates that the "ex-situ" processing would be economic at sustained average world oil prices above $54 per barrel and "in-situ" processing would be economic at prices above $35 per barrel. These estimates assume a return rate of 15%. Royal Dutch Shell announced in 2006 that its Shell ICP technology would realize a profit when crude oil prices are higher than $30 per barrel ($190/m), while some technologies at full-scale production assert profitability at oil prices even lower than $20 per barrel ($130/m). To increase the efficiency of oil shale retorting and by this the viability of the shale oil
Imperial Oil (Superfund site) removed over 20,000 gallons of PCB-contaminated oil. In 1998, EPA excavated and disposed of 6,488 cubic yards of contaminated soil (roughly equivalent to one football field, covered one yard deep) from four nearby residences. NJDEP completed a study determining the full nature and extent of the contamination. The cleanup plan calls for the excavation and off-site disposal of contaminated soil and removal and off-site incineration of floating product; dismantling buildings and tank farms needed to complete the soil excavation; and restoring wetlands. In 2004, NJDEP excavated and disposed of 14,889 cubic yards of contaminated soil and sediment from the Birch