May 9 (Reuters) - GR Engineering Services Ltd GNG.AX :
* Upstream ps - contract award - Origin - aplng project GNG.AX
* Revenue under the contract is expected to be approximately $50 million in total over the term
* Says Upstream Production Solutions, entered into an additional agreement with Origin Energy
* Agreement for provision of wellsite, gas production and water treatment facility maintenance
* Source text for Eikon ID:nASXc0HG8g