Petroleum County Moon PhasesUnited StatesMTPetroleum County10:13 am8:57 pmWinnettSet at 10:13 am, Rise at 8:57 pm10:13 am8:57 pmWild Horse LakeSet at 10:13 am, Rise at 8:57 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir