Lay out a large piece of foil and drizzle half of the oil in the center.
Place the salmon in the center of the foil and drizzle with remaining oil.
Place butter, cut into small pads, on top of salmon.
Set lemon slices all over top of salmon and butter.
Sprinkle with salt and pepper to taste.
Set fresh herbs of choice on top. Thyme is a favorite.
Carefully fold over sides of foil and roll together to create a sealed packet.
Grill at medium over direct heat for about 14 minutes. Check the internal temperature of the fillet and cook until it reaches at least 135 degrees F.
Remove packet from the grill and allow to sit, still sealed, for about 5 more minutes. The internal temperature should reach 140-145 degrees F.
Carefully unwrap the foil, remove lemons and herb stems, serve, and enjoy!