We received a notification today from Barclays PLC notifying of its interest as at 12 May 2006, through the registered holders listed below, in 26,656,854 ordinary shares in United Utilities PLC amounting to 3.05 per cent of the issued share capital.
| Registered Holder | | Account
Designation | | Holding | |
| | | | | | |
| BANK OF IRELAND | | 426353 | | 369,228 | |
| BANK OF NEW YORK | | | | 62,381 | |
| BARCLAYS CAPITAL NOMINEES LIMITED | | | | 233,813 | |
| BARCLAYS CAPITAL NOMINEES LIMITED | | | | 481,317 | |
| BARCLAYS CAPITAL NOMINEES LIMITED | | | | 2,832,985 | |
| Barclays Capital Securities Ltd. | | | | 1,084,724 | |
| Barclays Global Investors Canada | | | | 62,406 | |
| Barclays Trust Co & Others | | | | 2,726 | |
| BARCLAYS TRUST CO AS EXEC/ADM C 000000000000000000 | | | | 4,673 | |
| Barclays Trust Co DMC69 C 000000000000000000 | | | | 7,000 | |
| Barclays Trust Co E99 C 000000000000000000 | | | | 1,150 | |
| Barclays Trust Co NOMS & DYE | | | | 700 | |
| Barclays Trust Co R69 C 000000000000000000 | | | | 37,009 | |
| CHASE NOMINEES LTD | | 16376 | | 434,086 | |
| CHASE NOMINEES LTD | | 28270 | | 279,691 | |
| Gerrard Nominees Limited | | 633484 | | 2,644 | |
| Gerrard Nominees Limited | | 660758 | | 5,000 | |
| Greig Middleton Nominees Limited (GM1) | | | | 274,308 | |
| INVESTORS BANK AND TRUST CO. | | | | 4,427,865 | |
| INVESTORS BANK AND TRUST CO. | | | | 14,094 | |
| INVESTORS BANK AND TRUST CO. | | | | 8,418 | |
| INVESTORS BANK AND TRUST CO. | | | | 153,678 | |
| INVESTORS BANK AND TRUST CO. | | | | 46,826 | |
| INVESTORS BANK AND TRUST CO. | | | | 908,841 | |
| INVESTORS BANK AND TRUST CO. | | | | 81,437 | |
| INVESTORS BANK AND TRUST CO. | | | | 131,766 | |
| INVESTORS BANK AND TRUST CO. | | | | 2,192,400 | |
| INVESTORS BANK AND TRUST CO. | | | | 194,877 | |
| INVESTORS BANK AND TRUST CO. | | | | 24,914 | |
| INVESTORS BANK AND TRUST CO. | | | | 270,599 | |
| JP MORGAN (BGI CUSTODY) | | 16331 | | 210,818 | |
| JP MORGAN (BGI CUSTODY) | | 16338 | | 52,325 | |
| JP MORGAN (BGI CUSTODY) | | 16341 | | 481,229 | |
| JP MORGAN (BGI CUSTODY) | | 16342 | | 111,038 | |
| JP MORGAN (BGI CUSTODY) | | 16400 | | 7,674,531 | |
| JP MORGAN (BGI CUSTODY) | | 17011 | | 14,787 | |
| JP MORGAN (BGI CUSTODY) | | 18409 | | 687,361 | |
| JPMORGAN CHASE BANK | | | | 29,321 | |
| JPMORGAN CHASE BANK | | | | 81,155 | |
| JPMorgan Chase Bank | | | | 9,153 | |
| JPMorgan Chase Bank | | | | 53,734 | |
| JPMorgan Chase Bank | | | | 42,959 | |
| JPMorgan Chase Bank | | | | 6,711 | |
| JPMorgan Chase Bank | | | | 7,317 | |
| JPMorgan Chase Bank | | | | 118,821 | |
| JPMorgan Chase Bank | | | | 125,864 | |
| JPMorgan Chase Bank | | | | 482,443 | |
| JPMorgan Chase Bank | | | | 22,475 | |
| JPMorgan Chase Bank | | | | 87,472 | |
| JPMorgan Chase Bank | | | | 94,739 | |
| Mellon Trust – US CUSTODIAN / | | | | 64,990 | |
| Mitsui Asset | | | | 14,190 | |
| R C Greig Nominees Limited | | | | 661,270 | |
| R C Greig Nominees Limited a/c AK1 | | | | 179,221 | |
| R C Greig Nominees Limited a/c BL1 | | | | 53,544 | |
| R C Greig Nominees Limited a/c CM1 | | | | 26,859 | |
| R C Greig Nominees Limited GP1 | | | | 114,134 | |
| R C Greig Nominees Limited SA1 | | | | 50,685 | |
| R C Greig Nominees Limited SA1 | | 355918 | | 1,742 | |
| Reflex Nominees Limited | | | | 349 | |
| Reflex Nominees Limited | | | | 1,236 | |
| STATE STREET BOSTON | | | | 453,660 | |
| Trust & Custody Services Bank | | | | 8,466 | |
| Trust & Custody Services Bank | | | | 699 | |
| | | | | | |
| Total | | | | 26,656,854 | |
United Utilities’ ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade on the New York Stock Exchange under the Trading Symbol ‘UU’.
