Just after the victory at Standing Rock, about 176,000 gallons of crude oil are spilled. 

176,000 gallonsA North Dakota oil pipeline ruptured and dumped more than 176,000 gallons of crude oil into Ash Coulee creek, which then spread the spill onto an unknown amount of U.S. Forest Service and private land. This incident happened just 150 miles away from the Standing Rock protests, which are trying to prevent the Dakota Access pipeline being built on tribal lands for fear a pipe rupture could contaminate their water supply. [The Guardian]

Source: Significant Digits For Wednesday, Dec. 14, 2016 | FiveThirtyEight