US District Judge James Boasberg in Washington, DC, is scheduled to hear arguments Monday afternoon.
The Standing Rock and Cheyenne River Sioux have asked for a temporary restraining order that would halt work on the disputed section of pipeline until their lawsuit seeking to stop it is resolved.
Texas-based Energy Transfer Partners received final approval from the Army last week to lay pipe under a Missouri River reservoir in North Dakota and complete the 1,200-mile pipeline, which would move North Dakota oil to a shipping point in Illinois.
They now also argue that it would threaten their right to practice the Sioux religion, which they say requires clean water.
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"The Corps has authorized activities under Lake Oahe that will substantially burden the tribe's free exercise of religious rituals that depend on the purity of water from the river," Standing Rock attorney Jan Hasselman said in court documents, referring to the Army Corps of Engineers.
The company's attorneys filed court documents early Monday urging Boasberg to reject the tribes' request, calling the new religious freedom argument "exceedingly tardy," ''not construction-related" and a "last-minute delay tactic."
Work under Lake Oahe had been held up in the courts until President Donald Trump last month instructed the Army Corps of Engineers to advance construction. The Army is involved because its engineering branch manages the river and its system of hydroelectric dams, which is owned by the federal government.