Parties interested in the Dampier to Bunbury gas pipeline (DBNGP) received a four page flyer on Monday outlining the sale process, along with a final bidding date of December 8.

There is expected to be between two and five serious contenders for the $2 billion asset. Currently pipeline specialist Australian Pipeline Trust is leading the herd while a consortium of the line's major users Alinta, Wesfarmers and Alcoa along with the Macquarie Bank has also shown its hand.

However, the ACCC has previously hinted that any ownership of the pipeline by Alinta would be need to be reviewed due to concerns of monopolisation of the WA market.

Epic is currently owned by US utilities giants El Paso and Dominion Resources as well as AMP Henderson, Hastings Fund Management and Deutsche Asset Management.

Epic's decision to sell its Australian assets comes after receiving a six month extension from its 28 lenders, which are collectively owed $1.85 billion, to be finalised in a single repayment.