Since its inception in 1949 the One Of Oklahoma Credit Union has been serving its members in the Oklahoma City, Oklahoma area with exceptional financial products. You can find their current interest rates on used car loans, new car loans, 1st mortgage loans and interest rates on both fixed and adjustable mortgages here on these pages. Currently led by Tyrel McCain, the One Of Oklahoma CU has grown its membership to over 5,981 with assets of more than $43,492,201. They have a main office and 3 branch offices.