How to use

Gas future ID

The Gas Future ID The ASX provided trade identifier required for a Final Transfer Trade is the EFP Trade EFP Trade Submission having 1 sell and 1 buy with a matching Gas Future ID identifier for an EFP Exchange of futures for physical Trade Future Transfer Submission having 1 sell and 1 buy with a matching Gas Future ID (one buy and one sell submission). Following the expiry of a futures contract, Trading Participants submit the Final EFP Trade Information The information submitted to AEMO in an EFP Trade Submission to AEMO Australian Energy Market Operator with the unique Gas Future Wallumbilla Gas Future ID.

The Gas Future ID has the following format:

Format	Example	Length	Visibility
ASX-AEMO-nnnn-NNNNN	ASX-AEMO-1234-AA5678	20 Alphanumeric characters	Private. Only Participant Users of the Participant ID can see it.

Section	Description
ASX-AEMO	Common prefix
-nnnn	unique 4-digit number
-NNNNN	Unique alphanumeric sequential code 5 characters

Preliminary EFP trade submission

Prior to the expiry of a contract, Trading Participants provide AEMO with Preliminary EFP Trade Information any time before the expiry of the futures contract.

The Preliminary Trade Information allows Trading Participants to receive information regarding their trade position.

AEMO uses the Preliminary EFP Trade Submission Optional information provided to AEMO by Trading Participants prior to the expiry of an EFP Trade (does not have a Gas Future ID). The Preliminary EFP Trade Submission price is the most recent daily settlement price of the Futures product. The price used in the Preliminary EFP Trade Information is indicative only and may change for the Final EFP Trade Submission. in Prudential Calculations providing there are no records for the delivery period with a Gas Future ID.

Information required from Trading Participants for a Preliminary EFP Trade Submission Information provided to AEMO by Trading Participants stored in the GSH database for matching and audit purposes Can contain many EFP Trade Records:

• Trade position (volume)
• Quantity and price
• Trade type (buy or sell)
• Product See Relevant Rules or Procedures month

Final EFP trade submission

Following the expiry of a contract, Trading Participants submit the Final EFP Trade Information to AEMO with the Gas Future ID. The Final EFP Trading Window The Submission Period between the Start and End Dates: Start Date: First Gas Day of the Delivery Period minus 14 Calendar Days End Date: First Gas Day of the Delivery Period minus 2 Calendar Days starts after the expiry of a contract on Business Day See Relevant Rules or Procedures minus 5 Gas Days.

Information required from Trading Participants for a Final EFP Trade are the same as the Preliminary EFP Trade Submission with the Gas Future ID.

Trade positions

Following the Final EFP Trade Submission Information provided to AEMO by Trading Participants during the EFP Trading Window with the Gas Future ID and Final Price. Providing the information passes validation, AEMO uses it in Prudential Calculations and matching, AEMO generates a monthly Gas Supply Hub Gas Trading Exchange Trade, enabling incorporation of trade positions into the usual GSH Gas Supply Hub. An exchange for the wholesale trading of natural gas. Delivery Netting See Relevant Rules or Procedures and Settlement processes.

EFP trade submission process

Step	Action	State	Who	Where	When
	Inform the Clearing Party of intent to make a Physical Delivery	Required	Trading Participants	Participant systems	Prior to the Preliminary EFP Trading Window
	Submit Preliminary EFP Trade Information (with or without the Gas Future ID)	Optional	Trading Participants	One of the submission interfaces	During the Preliminary EFP Trading Window
	Validate Preliminary EFP Trade information	Required	AEMO	AEMO systems	During Validation
	Rectify any failed validation	Submission rejected	Trading Participants	Participant systems	After receiving a FAIL message, see Validation Messages
	Send reports	Valid submission	AEMO	For details, see Reports.	After Valid submission
	Utilise the Preliminary EFP Trade Information	Validated	AEMO	AEMO systems > Prudential Calculation	After Valid submission
	Rectify any breaches	Close out unrectified trade positions	Trading Participants	Participant systems	After Valid submission
	Submit Final EFP Trade Information with the Gas Future ID	Required	Trading Participants	One of the submission interfaces	During the Final EFP Trading Window
	Validate Final EFP Trade Information	Required	AEMO	AEMO systems	Following the Final EFP Trade Submission
	Create EFP Trade position	Validated	AEMO	AEMO systems	Following the Final EFP Trade Submission
	Send reports	EFP Trade created	Trading Participants	For details, see Reports.	At the end of the EFP Trading Window

Submission interfaces

To submit EFP Trade Information to AEMO, GSH Trading Participants can use the following interfaces:

1. API: Submit a JSON schema to AEMO’s API Gateway. Recommended for large submissions. For endpoint details, see Postman: GSH EFP Trade Submission Endpoints.
2. Web csv payload: GSH Markets Portal > GSH Future Submission > Upload File: Recommended for large submissions. For help, see Upload a CSV Payload.
3. Web: GSH Markets Portal > GSH Future Submission: Enter information directly in the web interface. Recommended for small submissions. For help, see Enter an EFP Trade Submission.

Submission period

Trading Participants can submit trade information to AEMO during the EFP Trading Window See Relevant Rules or Procedures (Delivery Period See Relevant Rules or Procedures) only:

If you attempt to submit a trade outside the EFP Trading Window you see this message:

Submission status

Status	Description
FAIL	The record did not pass validation
PENDING	The Preliminary EFP Trade Submission passed validation and is included in the Forward Exposure Prudential calculation
OVERRIDE	A recent trade record replaced this trade
MATCH	The EFP Trade position is created The EFP Trade is no longer included in the Forward Exposure Prudential calculation