East Timor and Australia have reached an agreement for a treaty on their disputed maritime border and on a “pathway” to develop the giant Greater Sunrise offshore gas fields, Reuters reported on Tuesday. The treaty could provide a major boost to East Timor’s struggling economy with an agreement on sharing revenue from the Greater Sunrise oil and gas fields, worth between US$40 billion and US$50 billion. Signed in New York, the treaty will close the door on the long and bitter dispute between Australia and East Timor over their maritime boundary, but it could lead to a new legal wrangle for Australia if Indonesia tries to use the deal to renegotiate its own outdated boundaries with Australia, writes Anne Barker for Radio Australia.