Today's headlines on the Daily Brief include:

* There’s been a shakeup in the top ranks of Tullow Oil following continued poor results in Africa;

* Rosneft is elbowing PDVSA aside on Venezuelan service contracts;

* Canada’s Canacol Energy has won three new gas exploration blocks in Colombia;

* Developing nations are demanding payouts for climate change at a UN conference;

* Could Bitcoin be part of the solution to end gas flaring?