Farmer owned. Community loved. Since 1908. Our farmers pledge. Not to use artificial growth hormones (no significant difference has been shown in milk from cows treated with the artificial growth hormone rbST and non rbST treated cows). Oak Farms Dairy has been providing families with delicious, fresh dairy since 1908. Today Oak Farms is 100% owned by a dairy farm cooperative that includes family farms right in your community. Bringing fresh, high-quality dairy to families like yours is our farmers' purpose and passion. Plant no. Stamped above. Pasteurized. Homogenized.