12th Sep 2008 10:56
| FORM 38.5 (SUMMARY) | 
| Lodge with Company Announcements Office and the Panel. Use a separate form for each class of | 
| securities in which dealings have been made. | 
| CONNECTED EXEMPT PRINCIPLE TRADER: | 
| DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND | 
| Name of EPT | Merrill Lynch International | 
| Date of disclosure | 12 September 2008 | 
| Date of dealing | 11 September 2008 | 
| Telephone number | 020 7996 2121 | 
| Please see attached disclosure of dealings under Rule 38.5 in the securities of the following | 
| 11 September 2008 | 
| Rio Tinto Plc - Common | 
| Imperial Energy Corporation Plc - Common | 
| CENTRICA PLC - Common | 
| Banco Santander SA. - Common | 
| FORM 38.5 | 
| DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS | 
| (Rule 38.5 of The City Code on Takeovers and Mergers) | 
| 1. KEY INFORMATION | 
| Name of exempt principal trader | Merrill Lynch International | 
| Company dealt in | Rio Tinto Plc | 
| Class of relevant security to which the | Common | 
| dealings being disclosed relate | 
| Date of dealing | 11/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 505,968 | GBP 42.67 | GBP 40.40 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 554,544 | GBP 42.59 | GBP 40.48 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Long Swap | LONG | 47,970 | GBP 41.70 | 
| Long Swap | LONG | 520 | GBP 41.08 | 
| Long Swap | LONG | 547 | GBP 41.51 | 
| Long Swap | LONG | 579 | GBP 41.24 | 
| Long Swap | LONG | 672 | GBP 42.00 | 
| Long Swap | LONG | 3,137 | GBP 41.54 | 
| Long Swap | LONG | 8,680 | GBP 41.24 | 
| Long Swap | LONG | 8,789 | GBP 41.70 | 
| Long Swap | LONG | 18,121 | GBP 42.49 | 
| Long Swap | LONG | 427 | GBP 41.54 | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Short Swap | SHORT | 21,955 | GBP 41.64 | 
| Short Swap | SHORT | 135 | GBP 41.83 | 
| Short Swap | SHORT | 11,270 | GBP 42.37 | 
| Short Swap | SHORT | 6,793 | GBP 41.39 | 
| Short Swap | SHORT | 2,661 | GBP 41.60 | 
| Short Swap | SHORT | 2,073 | GBP 41.57 | 
| Short Swap | SHORT | 1,483 | GBP 41.57 | 
| Short Swap | SHORT | 681 | GBP 41.57 | 
| Short Swap | SHORT | 563 | GBP 42.37 | 
| Short Swap | SHORT | 427 | GBP 41.60 | 
| Short Swap | SHORT | 51,107 | GBP 41.90 | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, | Number of | Exercise | Type, e.g. | Expiry | Option | 
| selling, | securities under | price | American, | date | money | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying etc. | per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | option | 
| 3. OTHER INFORMATION | 
| Agreements, arrangements or understandings relating to options or derivatives | 
| Full details of any agreement, arrangement or understanding between the person disclosing and any | 
| other person relating to the voting rights of any relevant securities under any option referred to on this | 
| form or relating to the voting rights or future acquisition or disposal of any relevant securities to which | 
| any derivative referred to on this form is referenced. If none, this should be stated. | 
| NONE | 
| Date of disclosure | 12/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | BHP Billiton Plc | 
| Nature of connection # | Advisor | 
| FORM 38.5 | 
| DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS | 
| (Rule 38.5 of The City Code on Takeovers and Mergers) | 
| 1. KEY INFORMATION | 
| Name of exempt principal trader | Merrill Lynch International | 
| Company dealt in | Banco Santander SA. | 
| Class of relevant security to which the | Common | 
| dealings being disclosed relate | 
| Date of dealing | 11/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 1,169,387 | EUR 11.61 | EUR 10.95 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 1,501,104 | EUR 11.23 | EUR 10.94 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Long Swap | LONG | 186,628 | EUR 11.06 | 
| Long Swap | LONG | 56,918 | EUR 11.61 | 
| Long Swap | LONG | 35,436 | EUR 11.10 | 
| Long Swap | LONG | 26,234 | EUR 11.61 | 
| Long Swap | LONG | 16,347 | EUR 11.61 | 
| Long Swap | LONG | 5,906 | EUR 11.15 | 
| Long Swap | LONG | 5,115 | EUR 11.61 | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Short Swap | SHORT | 2,380 | EUR 11.05 | 
| Short Swap | SHORT | 5,115 | EUR 11.08 | 
| Short Swap | SHORT | 14,242 | EUR 11.11 | 
| Short Swap | SHORT | 24,180 | EUR 11.05 | 
| Short Swap | SHORT | 25,440 | EUR 11.08 | 
| Short Swap | SHORT | 29,100 | EUR 11.11 | 
| Short Swap | SHORT | 129,795 | EUR 11.11 | 
| Short Swap | SHORT | 209,925 | EUR 11.08 | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, | Number of | Exercise | Type, e.g. | Expiry | Option | 
| selling, | securities under | price | American, | date | money | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying etc. | per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | option | 
| 3. OTHER INFORMATION | 
| Agreements, arrangements or understandings relating to options or derivatives | 
| Full details of any agreement, arrangement or understanding between the person disclosing and any | 
| other person relating to the voting rights of any relevant securities under any option referred to on this | 
| form or relating to the voting rights or future acquisition or disposal of any relevant securities to which | 
| any derivative referred to on this form is referenced. If none, this should be stated. | 
| NONE | 
| Date of disclosure | 12/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | Banco Santander SA. | 
| Nature of connection # | Advisor | 
| FORM 38.5(a) | 
| DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS WITH | 
| RECOGNISED INTERMEDIARY STATUS DEALING IN CLIENT- | 
| SERVICING CAPACITY | 
| (Rule 38.5(a) of The City Code on Takeovers and Mergers) | 
| 1. KEY INFORMATION | 
| Name of exempt principal trader | Merrill Lynch International | 
| Company dealt in | Imperial Energy Corporation Plc | 
| Class of relevant security to which the | Common | 
| dealings being disclosed relate | 
| Date of dealing | 11/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 107,562 | GBP 11.42 | GBP 11.23 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 154,722 | GBP 11.35 | GBP 11.26 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, | Number of | Exercise | Type, e.g. | Expiry | Option money | 
| selling, | securities under | price | American, | date | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying etc. | per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | option | 
| 3. OTHER INFORMATION | 
| Agreements, arrangements or understandings relating to options or derivatives | 
| Full details of any agreement, arrangement or understanding between the person disclosing and any | 
| other person relating to the voting rights of any relevant securities under any option referred to on this | 
| form or relating to the voting rights or future acquisition or disposal of any relevant securities to which | 
| any derivative referred to on this form is referenced. If none, this should be stated. | 
| NONE | 
| Date of disclosure | 12/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | Imperial Energy Corporation Plc | 
| Nature of connection # | Advisor | 
| FORM 38.5(a) | 
| DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS WITH | 
| RECOGNISED INTERMEDIARY STATUS DEALING IN CLIENT- | 
| SERVICING CAPACITY | 
| (Rule 38.5(a) of The City Code on Takeovers and Mergers) | 
| 1. KEY INFORMATION | 
| Name of exempt principal trader | Merrill Lynch International | 
| Company dealt in | CENTRICA PLC | 
| Class of relevant security to which the | Common | 
| dealings being disclosed relate | 
| Date of dealing | 11/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 2,970,854 | GBP 3.22 | GBP 3.15 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 3,330,941 | GBP 3.25 | GBP 3.14 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, | Number of | Exercise | Type, e.g. | Expiry | Option money | 
| selling, | securities under | price | American, | date | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying etc. | per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | option | 
| 3. OTHER INFORMATION | 
| Agreements, arrangements or understandings relating to options or derivatives | 
| Full details of any agreement, arrangement or understanding between the person disclosing and any | 
| other person relating to the voting rights of any relevant securities under any option referred to on this | 
| form or relating to the voting rights or future acquisition or disposal of any relevant securities to which | 
| any derivative referred to on this form is referenced. If none, this should be stated. | 
| NONE | 
| Date of disclosure | 12/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | EDS S.A. | 
| Nature of connection # | Advisor | 
Related Shares:
Banco SantanderRio Tinto