Petroleum County Sunrise / SunsetUnited StatesMTPetroleum CountySunset4:44 pmWinnettSunset at 4:44 pmSunset4:45 pmWild Horse LakeSunset at 4:45 pmFlatwillowLittle Bear LakePetrolia LakeTeigenWar Horse LakeWar Horse National Wildlife RefugeWild Horse LakeWinnettYellow Water Reservoir