hi mrmoshe and others
not sure if this has already been posted here...but here is the Environment Plan Summary for ES-N1.
http://www.nopsema.gov.au/assets/epsummaries/NTP48-Drilling-Environment-Plan-Summary.pdf
The EIS Indicates May-March 2013 (subject to rig availability, which is what you are obviously trying to find more info on). The document revision date is 21 Dec 2012.
cheers
Ben