Petroleum County Moon PhasesUnited StatesMTPetroleum County1:22 am4:55 pmWinnettSet at 1:22 am, Rise at 4:55 pm1:22 am4:55 pmWild Horse LakeSet at 1:22 am, Rise at 4:55 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir