Flooding caused by Harvey has toppled two oil storage tanks in southern Texas, releasing about 30,000 gallons of crude oil, authorities said Wednesday.

The spills in DeWitt County were reported by Burlington Resources Oil and Gas. They included a a 16,170-gallon (385 barrels) oil leak near the town of Westhoff and a 13,272-gallon (316 barrels) spill near Hochheim, around 150 miles west of Houston.

It remained unclear if any of the leaked oil was recovered. There was also reportedly an 8,500-gallon (200 barrels) spill of wastewater.