Oil Rigs: Fortes Oilfield offshore rig Atmosphere in radio room, fax receiver
Oil Rigs: Fortes Oilfield offshore rig Chart recorder, analysing gas from hole
Oil Rigs: Fortes Oilfield offshore rig Dangerous gas alarm
Oil Rigs: Fortes Oilfield offshore rig Facsimile weather chart recorder
Oil Rigs: Fortes Oilfield offshore rig Fog horn, sounded twice
Oil Rigs: Fortes Oilfield offshore rig Oil running through pipe at well head
Oil Rigs: Fortes Oilfield offshore rig Sonic probe lowered into hole, producing clicks