Crews have to remove what's left of more than 2,200 gallons of foam that was used to extinguish the fire.
The News & Record of Greensboro reported that a spokesman for Georgia-based Colonial Pipelines said Monday the foam is being held in a retaining pond. Colonial owns the tank farm in Greensboro.
Officials say the fire started early Sunday afternoon from a lightning strike. The fire temporarily closed stretches of Interstates 40 and 73 through Greensboro.
The 52,000-gallon tank was 51 feet tall and 80 feet wide. It burned about halfway to the ground. It held about 20,000 barrels of gasoline, but the company removed about 7,500 barrels from the tank through underground pipes during the blaze.