Hello - Newbie here.. with a Question: While outside the USA - be it the Caribbean , S. Pacific, S. America etc.. On larger Yachts, the fuel bill can easily come to over $50K on a fillup of 15K -20K gallons...; Is this simply paid for on a credit card? Do they ever demand cash? Is it always priced in US Dollars? or Euros in Europe of course and how do they deal with currency exchanges on large purchases. How long does a refueling like that typically take (15K-20K gallons). What kind of premium over standard fuel rates does diesel sell for in these distant ports? Is there ever more than one filling station company and do they compete on price? Please explain to a soon to be 1st time owner. Thank you.