19 (Bloomberg) -- The Inter-American Development Bank, a Washington-based lender to Latin American and Caribbean countries, approved a $400 million loan for Hunt Oil Co.'s $3.9 billion liquefied-natural-gas project in Peru.Dec. A refinance mortgage loan generally means paying off your original mortgage by signing a new loan. Your refinance mortgage loan acts like your typical mortgage loan. That means that you pay most of the same costs you paid to get your original mortgage.