Petroleum County Sunrise / SunsetUnited StatesMTPetroleum CountySunset4:24 pmWinnettSunset at 4:24 pmSunset4:24 pmWild Horse LakeSunset at 4:24 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir