Feb 17 (Reuters) - WDS Ltd
* WDS lifts FY 2014 guidance on stronger first half earings
* Strong margin growth in the energy division has been the primary driver of the group's performance in the first half
* Expect that margins from energy division will moderate in the second half
* Operating environment in the coal sector continues to be particularly challenging"
* Says net profit after tax guidance for the year to 30 June 2014 has now been increased from $10 million-$12 million to $12 million-$14 million
* Source text for Eikon
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