** Shares of U.S.-based refiner PBF Energy PBF.N up 1.4% at $36.30 premarket
** PBF posts surprise profit for the quarter ended December 31, as supply disruptions tied to the Russia-Ukraine war, improved crude price differentials lift refining margins
** Posts adjusted profit of 49 cents per share for the reported quarter vs analysts' average estimate of a 10 cents loss per share
** PBF's consolidated gross refining margin stood at $11.16 per barrel in the fourth quarter, compared with $4.89 per barrel last year
** Adds that construction activities of the California-based Martinez refinery are expected to complete by February 16, 2026, following the February 2025 incident
** In 2025, PBF shares were up 2.1%
(Reporting by Pranav Mathur in Bengaluru)
((Pranav.Mathur@thomsonreuters.com;))