Petroleum County Moon PhasesUnited StatesMTPetroleum County6:56 am10:15 pmWinnettRise at 6:56 am, Set at 10:15 pm6:56 am10:15 pmWild Horse LakeRise at 6:56 am, Set at 10:15 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir