Voice of America | Crackdown on Bush Refineries Unsettles Nigeria's Oil Heartland Voice of America Listening for the engines of navy boats hunting illegal refineries in the swamps of Nigeria's Niger Delta, workers heat up crude oil in a tank next to a waterway. The young men are ready to abandon their bush refinery at a moment's notice. Nerves are ... Dangerous But Lucrative: The Business Of “Crude Oil Cooking” In The Niger Delta |