Martha's Vineyard Times reports here:
The select board approved a request for a 2,500-gallon commercial propane tank for 79 Turkeyland Cove Road in Katama — owned by former President Barack Obama and First Lady Michelle Obama. “We’ve never had a private propane tank come to us,” said select board member Arthur Smadbeck, with select board member Michael Donaroma noting a private-residence propane tank is typically a fraction of the quantity being requested.
500 gallon tanks "provide adequate fuel needs for whole-home or business heating for structures up to 4,500 square feet."