Special Section: Disaster in the Gulf
The talks are the latest sign that concern is growing that strong currents could carry the slick far from the site of the spill, possibly threatening the Florida Keys and the pristine white beaches along Cuba's northern coast.
They are also a rare moment of cooperation between two countries locked in conflict for more than half a century.
The official spoke to The Associated Press on condition of anonymity due to lack of authorization to comment publicly.
More Oil Spill Coverage
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Oil Spill's Economic Impact Spans Country
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Salazar: Gov't Shares Blame for Gulf Oil Spill
Tar Balls off Key West Up Oil Spill Spread Fear
Tar Balls Wash Up in Fla.
Rig Warning Signs Ignored?
Spill Approaching E. Coast?
"60 Minutes" Coverage of Oil Spill
Blowout: The Deepwater Horizon Disaster
Extra: Mike Williams on Andrea's Rescue
Extra: "I'm Gonna Die Right Here"
Extra: "As I Got To The Next Door, It Exploded"
Extra: "It Was A Ranging Inferno"
Extra: "We Were In Bad Trouble"
Extra: "We're Gonna Burn Up Or We're Gonna Jump"
Extra: "I Must Be Dead"
Extra: Capturing The Disaster
Extra: Warning Signs