RNZ reports Pulono Toke said the northern islands have not had a reliable fuel supply for over a month.
Mr Toke said he knows of at least four companies who have ceased operations.
Over the weekend local MP 'Akosita Lavulavu partnered with a company and paid to bring fifty 200 litre drums of fuel to Vava'u.
Mr Toke said the move was welcomed but with over 15 whale-watching companies usually consuming 200 litres a day, per company, the supply would not last.
However he said it showed what the government could be doing.
