Petroleum County Moon PhasesUnited StatesMTPetroleum County5:50 am8:38 pmWinnettRise at 5:50 am, Set at 8:38 pm5:50 am8:38 pmWild Horse LakeRise at 5:50 am, Set at 8:38 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir