>>> How many times did Texas beat Oklahoma between 1940 to 1947 and 1958-1965? 

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Based on the provided context, the answer is 8. The question asks for the number of times Texas beat Oklahoma between 1940 to 1947 and 1958-1965. According to the information, Texas defeated Oklahoma a record eight straight times in both of these periods. Therefore, the total number of times Texas beat Oklahoma during this time frame is 8 (record eight straight times in both 1940-1947 and 1958-1965).