"Everyone, keep oil prices down, I'm watching! You're playing into the hands of the enemy, don't do it," Trump wrote in all caps on his Truth Social platform, according to Reuters.

Trump followed up with another post addressed to the US Department of Energy, encouraging it to "drill, baby, drill" and saying, "I mean now."

US Energy Secretary Chris Wright responded, "We're on it!" in a post on X.

It was not immediately clear what the energy department could do to boost oil and gas drilling, which hit record highs during the previous administration of former President Joe Biden and which Trump wants to take even higher. The Energy Department did not immediately respond to a question on Wright's comment.

Global benchmark Brent oil prices oscillated on Monday, touching a five-month high before falling more than 1% to $76.10 a barrel as oil and gas transit continued on tankers from the Middle East after US air strikes against Iran over the weekend.