Petroleum County Moon PhasesUnited StatesMTPetroleum County12:58 pm10:24 pmWinnettSet at 12:58 pm, Rise at 10:24 pm12:58 pm10:24 pmWild Horse LakeSet at 12:58 pm, Rise at 10:24 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir