SOUTH SIOUX CITY, Neb. (5/3/11)--A Nebraska credit union's "give back" to the community campaign turned out to be popular Friday when it was coupled with these magic words: "Free Gas." Siouxland FCU 's latest give-back effort provided $3,000 worth of $20 gas cards at Kum and Go' pumps in Sioux City. Twenty dollars in free fuel went to the first 150 drivers stopping by the gas station. Most were surprised to get the $20 off, and some said they were excited about it. Troy Bloch, marketing director of the $138 million asset, South Sioux City-based credit union, told KMEG14 that with gas prices at $4 a gallon, the credit union thought that people would really respond to the free gas. According to the television station, "Friday's event was a huge success. All of the free gas was guzzled up in about half an hour. " To see videos of the run on the pumps and more information about Siouxland FCU's give-back campaign, use the links.