BILLINGS, Mont. (AP) — Exxon Mobil Corp. agreed to pay a $1.05 million penalty to settle alleged federal water pollution violations from an oil pipeline break into Montana's Yellowstone River, according to court documents filed Friday.

Approval of the agreement by U.S. District Judge Susan Watters would resolve the last outstanding federal enforcement case against the oil giant stemming from the 2011 accident that spilled 63,000 gallons (238,474 liters) of crude.

Terms of the settlement were detailed in a consent decree filed in federal court in Billings. It's subject to a 30-day public commen...