Crude oil traders are buying more oil futures after a year of overwhelmingly negative attitudes toward the price of the commodity. The big reason for the change: Donald Trump. Speculators have been buying more oil and fuels for three months, energy market analyst John Kemp reported recently, saying net positions in petroleum and fuel contracts swung from net short to net long between September and December 2024. At the end of the year, the net long position was equivalent to 404 million barrels, he wrote, noting that funds had been net buyers of…