The three Democrats are among several Florida lawmakers who are concerned about the plan.
The Interior Department proposal would shrink the no-drilling buffer off Florida’s Gulf of Mexico shores – if Congress allows it – but prevents development within 125 miles of the coast.
The plan also calls for potential development in regions in the south Atlantic that abut Florida’s northeastern coast. But it’s the eastern Gulf that’s coveted by oil-and-gas producers.
Much of the eastern Gulf remains off-limits under a 2006 law – it created a no-drilling buffer that extends 125 miles south of the Florida panhandle and 235 miles west of Tampa.