I just read that Alegria, Nigeria and Niger signed a 10 Billion$ contract to build a pipline for oil and gas. The pipline will cross the Sahara desert (in Morocc) and from there it will be shiped to Europe. The pipline will be ready in 2015.
I know Tanzania is on east Africa. However, if key has enough gas,...who knows...many positive things could happen ....
Link:
http://news.bbc.co.uk/2/hi/business/8132823.stm