Petroleum County Moon PhasesUnited StatesMTPetroleum County12:22 am8:22 amWinnettRise at 12:22 am, Set at 8:22 am12:22 am8:22 amWild Horse LakeRise at 12:22 am, Set at 8:22 amFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir