Bloomberg’s Javier Blas warned on Monday that the next oil glut will be harder and costlier to finance than any in recent memory, describing a “cartoonish” surplus forming as new barrels from Guyana, Brazil, the United States and the Middle East converge with slower demand growth and sharply higher borrowing costs. In a column for EnergyNow, Blas argues that the most dangerous element of the coming oversupply is not the scale of production but the price of money. In previous downturns, cheap credit allowed traders to hold…