Response crews conduct lightering operations on the damaged MM-46 barge, Jan. 23, 2016. Crews estimate that approximately 76,000 gallons of clarified oil mixture is still unaccounted for. Crews continue to take soundings of the damaged barge tank to determine the amount spilled while assessment teams work to locate missing product. (U.S. Coast Guard photo by Petty Officer 1st Class Chirs Bemis)