The company's EBITDA sunk by $436 million to $1.15 billion on the back of reduced energy demand and lower commodity prices.
Origin's underlying profit dropped from $528 million to $224 million impacted by lower wholesale prices, one-and off network costs.
Their 20 per cent purchase last year of UK retailer Octopus Energy is progressing well with a new partnership with Tokyo Gas and entry into the Japanese market.
The company will pay an unfranked dividend in March of 12.5 cents per share.
Shares in Origin Energy (ASX:ORG) are trading 2.4 per cent lower at $4.49.