Oct 31 (Reuters) - Origin Energy Ltd ORG.AX :
* Origin energy says US$5.1 billion of shareholder guarantees relating to Australia Pacific LNG's us$8.5 billion project finance facility had been released
* As 37.5% shareholder in Australia Pacific LNG, amount of project finance facility guaranteed by Origin reduced by US$1.9 billion to US$1.3 billion
* Release of remaining US$3.4 billion in project finance guarantees following completion of lenders' tests for project's second production train Source text for Eikon: Further company coverage: ORG.AX