Spread the wordBrent crude prices jumped on ​Thursday, hitting a four-month high on rising concerns about a possible U.S. military attack on ‌Iran, OPEC’s fourth-largest producer with output of 3.2 million barrels per day. Brent crude ‌futures were up $1.65, or 2.4%, to $70.05 a barrel at 1308 GMT. At its intra-day ​peak, Brent traded as high as $70.35 a barrel, its highest since late-September. The contract is on track to rise over 15% in January, its biggest monthly increase in four years. WTI futures earlier topped $65 a barrel, also a four-month high, and were on track for a 13% monthly gain, the biggest since July 2023.