Blocklisting 6 Monthly Return

Roc Oil Company Limited
28 September 2006


                        BLOCKLISTING SIX MONTHLY RETURN



+----------------------------------------+----------------------------------------+
|1. Name of company                      |ROC OIL COMPANY LIMITED                 |
|                                        |                                        |
+----------------------------------------+----------------------------------------+
|2. Name of scheme                       |EMPLOYEE SHARE OPTION PLAN              |
|                                        |                                        |
+----------------------------------------+----------------------------------------+
|3. Period of return:                    |From: 22.9.05 to 21.9.06                |
|                                        |                                        |
+----------------------------------------+----------------------------------------+
|4. Number and class of shares(s)amount  |739,800                                 |
|of stock/debt security) not issued under|                                        |
|scheme                                  |                                        |
|                                        |                                        |
+----------------------------------------+----------------------------------------+
|5. Number of shares issued/allotted     |(739,800)                               |
|under scheme during period              |                                        |
|                                        |                                        |
+----------------------------------------+----------------------------------------+
|6. Balance under scheme not yet issued/ |Nil                                     |
|allotted at end of period               |                                        |
|                                        |                                        |
+----------------------------------------+----------------------------------------+
|7. Number and class of share(s) (amount |2,392,400 on 21.9.04                    |
|of stock/debt securities) originally    |                                        |
|listed and the date of admission        |                                        |
+----------------------------------------+----------------------------------------+


Please confirm total number of shares in issue at the end of the period
in order for us to update our records

216,460,793

Contact for queries: Address: Level 14, 1 Market Street, Sydney NSW 2000

Name: Sheree Ford

Telephone: [phone]






                      This information is provided by RNS
            The company news service from the London Stock Exchange