The US Bureau of Ocean Energy Management (BOEM) saw the lowest participation of any lease sale since the 1980s last August when an offering of Western Gulf blocks attracted only 33 bids.
No cancellation is in the works, BOEM director Abigail Hopper told a geophysical society meeting in Houston.
The result was confirmed by a final notice of sale bulletin on Thursday firming up the event for 23 March.
"Obviously