On Thursday, Energy Transfer Crude Oil Company, LLC filed an oil tariff, which specifies details about the Dakota Access Pipeline. The company’s plan is to start interstate crude oil delivery on May 14, providing oil transportation from Patoka, Illinois, to Nederland, Texas.

Last year, protests erupted after Dallas-based Energy Transfer Partners began construction on the final segment of the $3.8 billion, 1,172-mile pipeline. The final segment required the company to lay piping under Lake Oahe, the main water source for the Standing Rock Sioux and Cheyenne River Tribes.

The two tribes filed multiple lawsuits against Energy Transfer Partners to stop construction of the pipeline, arguing the land belonged to them and that the pipeline would desecrate sacred burial grounds around Lake Oahe. Many also argued that an oil spill would poison the tribe’s primary water supply.

At its peak, thousands of protesters, known as “water protectors,” set up a camp outside the construction site. Protesters lived at the camp site for months where hundreds were arrested. Other protests also erupted across the nation, from Washington, DC to Los Angeles…