Original oil and gas trade magazine vintage ad for HUMBLE OIL AND REFINING COMPANY of Houston, TX. Million Dollar Hot Dog. In a million dollar program to help food processors comply with new Food and Drug Administration requirements, Humble developed a special kind of grease for the lubrication of frankfurter machines. Humble has also proved the safety of many other petroleum products used in making rubber, metal, glass, plastic and paper that come in contact with food. Unique 1965 old petroleum products refining industry magazine advertisement. Nice graphics.