Energy major Origin Energy has struck a A$231-million deal to sell its Ironbark project to Australia Pacific Liquefied Natural Gas (APLNG) – a joint venture in which it is a 37.5% shareholder with ConocoPhillips (37.5%) and Sinopec (25%). Origin said on Tuesday that it expected to book a non-cash post-tax impairment of A$34-million in the interim financial results, based on the sales price for Ironbark. This would be offset by a A$68-million benefit to tax expenses.