Petroleum County Moon PhasesUnited StatesMTPetroleum County4:32 am3:42 pmWinnettSet at 4:32 am, Rise at 3:42 pm4:32 am3:42 pmWild Horse LakeSet at 4:32 am, Rise at 3:42 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir