<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2017) (Learn how and when to remove this template message) </Td> </Tr> <P> This is a list of championships garnered by the Oklahoma Sooners college football program . </P> <P> The team has captured 47 conference titles, including 14 in a row between 1946--59, eight divisional titles, and seven claimed national championships: 1950, 1955, 1956, 1974, 1975, 1985, 2000 . In addition to the seven claimed national titles the NCAA also recognizes 10 others: 1915, 1949, 1953, 1957, 1967, 1973, 1978, 1980, 1986, and 2003 . </P> <Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2017) (Learn how and when to remove this template message) </Td> </Tr> </Table>

When did oklahoma university win the national championship