Probably because in 10-15 years time an oil company won't be able raise any significant amount of money. Major investors have already started divesting from fos

Probably because in 10-15 years time an oil company won't be able raise any significant amount of money. Major investors have already started divesting from fossil fuels. If they're smart, the money will be invested in creating the post-oil economy SA will need. They could keep on being an important energy exporter, sunlight is very abundant there after all.