Petroleum County Sunrise / SunsetUnited StatesMTPetroleum CountySunset4:32 pmWinnettSunset at 4:32 pmSunset4:32 pmWild Horse LakeSunset at 4:32 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir