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| Envisat
 ASAR satellite radar image showing large slick (outlined in yellow) from major oil spill 
off Niger Delta.  Image courtesy European Space Agency. |  | 
Royal Dutch Shell's Nigerian drilling operations in the highly 
productive Bonga Field were officially brought to a halt yesterday after
 
"less than 40,000 barrels of oil"
 (1.7 million gallons) were reportedly leaked during a transfer of crude
 to a tanker. We've just processed a radar satellite image taken this 
morning (December 21, 2011) of the field, with the spill clearly 
visible.  Here it is showing the slick outlined in yellow; it is about 
70 km (45 miles) long, 17 km (10 miles) wide at it's widest, and covers 
923 square kilometers (356 square miles) of ocean:  
Another, much smaller oil slick appears at lower right; this looks like a
 bilge dump from a passing vessel, not related to the Shell spill.
[[Location:4.554,4.618]]
 
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