SASOL, the oil from coal pioneer, said it will improve its bottom line by R300-million for every sustained increase of $1 above the $16 level in the steadily rising derived crude oil price, according to the Business Report. The paper reports the derived crude oil price is now at $19 a barrel. If the derived price remains at least $3 above the tariff protection floor rate over the next 12 months, Sasol will make an additional R900-million.