<Table> <Tr> <Th_colspan="2"> Oklahoma City Thunder </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> </Td> <Td> 2018--19 Oklahoma City Thunder season </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Conference </Th> <Td> Western </Td> </Tr> <Tr> <Th> Division </Th> <Td> Northwest </Td> </Tr> <Tr> <Th> Founded </Th> <Td> 1967 </Td> </Tr> <Tr> <Th> History </Th> <Td> Seattle SuperSonics 1967--2008 Oklahoma City Thunder 2008--present </Td> </Tr> <Tr> <Th> Arena </Th> <Td> Chesapeake Energy Arena </Td> </Tr> <Tr> <Th> Location </Th> <Td> Oklahoma City, Oklahoma </Td> </Tr> <Tr> <Th> Team colors </Th> <Td> Thunder blue, sunset, yellow, navy blue </Td> </Tr> <Tr> <Th> General manager </Th> <Td> Sam Presti </Td> </Tr> <Tr> <Th> Head coach </Th> <Td> Billy Donovan </Td> </Tr> <Tr> <Th> Ownership </Th> <Td> Professional Basketball Club LLC (Clay Bennett, Chairman) </Td> </Tr> <Tr> <Th> Affiliation (s) </Th> <Td> Oklahoma City Blue </Td> </Tr> <Tr> <Th> Championships </Th> <Td> 1 (1979) </Td> </Tr> <Tr> <Th> Conference titles </Th> <Td> 4 (1978, 1979, 1996, 2012) </Td> </Tr> <Tr> <Th> Division titles </Th> <Td> 11 (1979, 1994, 1996, 1997, 1998, 2005, 2011, 2012, 2013, 2014, 2016) </Td> </Tr> <Tr> <Th> Retired numbers </Th> <Td> 7 (1, 10, 19, 24, 32, 43, Microphone) </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.nba.com/thunder </Td> </Tr> <Tr> <Th_colspan="2"> Uniforms </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> Home </Td> <Td> Away </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Oklahoma City Thunder </Th> </Tr>

When did the oklahoma city thunder become a team