Nigeria will send its long delayed Petroleum Industry bill to the Senate by the end of April. This is the latest step in efforts to overhaul the energy sector in Africa's largest economy. The legislation is part of proposed reforms which have been in discussion for over a decade and re-drafted many times but are yet to be passed into law. President Muhammadu Buhari has made passing the legislation a priority as part of an attempt to crackdown on the mismanagement and corruption that has held back the country's energy sector. Oil sales account for two-thirds of government revenue in the OPEC member state.