S-oil Corporation, a major oil refinery in South Korea, launched the "Here" balloons campaign to address the problem of drivers wasting fuel searching for parking spots in Seoul. The campaign involved placing balloons attached to parking spaces so that empty spots were marked by balloons floating up, helping drivers find parking easily. This saved an estimated 23 liters of fuel per day from just one parking lot by reducing time spent searching. The campaign positioned S-oil as a company committed to conserving oil resources while providing a practical solution that benefited both citizens and the environment. It was highly successful in improving S-oil's reputation and won a Cannes Lions award.