What are the Texas oilfield hours-of-service rules?

The Texas intrastate hours-of-service rules allow for an oilfield equipment exemption. The oilfield equipment exemption in the Texas oilfield hours-of-service rules applies to drivers involved in stringing and picking up pipes used in pipelines as well as field operations in the oil and gas industry.

According to the exemption, any period of seven consecutive days may end with the beginning of any off-duty period of 24 or more consecutive hours