Seems like this has been a recurring theme over the last several years in the Texas press, i.e., Texas Democrats donate more to out-of-state candidates than they do to in-state candidates.
In this cycle, Texas Democrats have given $21 million, but only $4.8 million has gone to Texas candidates. The Texas Democratic Party even spent money on advertising in Alabama back in August 2011.
Of course, the lack of competitive candidates has had an impact on the giving of Texas Democrats, and with no winning statewide candidates since 1994 and no statewide officeholders since 1998, there isn’t really anyone to give to. As the Chronicle notes, the Texas Senate race is an example of this, because Texas Democrats have given only $135 thousand to Texas Senate candidates, but $3.7 million to other Senate candidates across the country.