Petroleum County Moon PhasesUnited StatesMTPetroleum County8:01 am11:51 pmWinnettRise at 8:01 am, Set at 11:51 pm8:01 am11:51 pmWild Horse LakeRise at 8:01 am, Set at 11:51 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir