Why has wave of Obamacare insurance cancellations mostly missed Texas?

There are several complex reasons, but one of the biggest is this: Following the example of Arkansas and other Southern states, the Texas Department of Insurance told health insurers in June that they could compress the contractual period of this year's policies.

http://www.dallasnews.com/news/state/headlines/20131129-why-has-wave-of-obamacare-insurance-cancellations-mostly-missed-texas.ece