Aug 28 (Reuters) - Sundance Energy Australia Ltd SEA.AX
* co shut in approximately 75% of its Eagle Ford production on Friday, 25 august 2017 in united states
* Anticipates its wells will be shut down for at least one week depending on course of storm
* hurricane has caused majority of midstream and downstream natural gas and crude oil infrastructure to be shut down across texas gulf coast
* shut in to ensure safety of employees and protect from potential environmental and equipment damage due to hurricane harvey