Petroleum County Moon PhasesUnited StatesMTPetroleum County7:18 am9:57 pmWinnettRise at 7:18 am, Set at 9:57 pm7:18 am9:57 pmWild Horse LakeRise at 7:18 am, Set at 9:57 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir