Two Republican presidential contenders recently released a list of Oklahoma endorsements that included several state legislators each, among other individuals. Texas Senator Ted Cruz has been endorsed by 3 state senators (including Senate President Brian Bingman) and 10 state representatives, while former Florida Governor Jeb Bush is supported by 1 state senator and 9 state representatives (including House Speaker Jeff Hickman).
For an interesting exercise, I went to the Oklahoma Constitution newspaper's Conservative Index to compare scores between the two camps.
I found that to be an interesting and very telling tidbit.
This is probably just the first round of state legislative endorsements for these candidates, as well as the 15 others running for president. I'll try to update this whenever more lists are released.