Exhibit 8
 EXHIBIT 8: LIST OF SUBSIDIARIES
 Name
    
    Country of Incorporation1.
    
    65 WILLIS LANE, INC.
    
    USA2.
    
    ADRIAN ASSOCIATES L.P. (effectively 7.03%)
    
    USA3.
    
    ALBERTA NORTHEAST GAS LTD (29.6%)
    
    Canada4.
    
    ARLINGTON ASSOCIATES LP (99%)
    
    USA5.
    
    ASSETHALL LIMITED
    
    England & Wales6.
    
    BEEGAS NOMINEES LIMITED
    
    England & Wales7.
    
    BIRCH SITES LIMITED
    
    England & Wales8.
    
    BLACKWATER A LIMITED
    
    England & Wales9.
    
    BLACKWATER B LIMITED
    
    England & Wales10.
    
    BLACKWATER C LIMITED
    
    England & Wales11.
    
    BLACKWATER D LIMITED
    
    England & Wales12.
    
    BLACKWATER E LIMITED
    
    England & Wales13.
    
    BLACKWATER H LIMITED
    
    England & Wales14.
    
    BLACKWATER J LIMITED
    
    England & Wales15.
    
    BLUE-NG (HOLDINGS) LIMITED (50%)
    
    England & Wales16.
    
    BLUE-NG LIMITED (via Blue-NG Holdings Ltd in which National Grid Blue Power Ltd holds 50%)
    
    England & Wales17.
    
    BOSTON GAS COMPANY (d/b/a National Grid)
    
    USA18.
    
    BRITISH TRANSCO CAPITAL INC
    
    USA19.
    
    BRITISH TRANSCO FINANCE (NO 1) LIMITED
    
    Cayman Islands20.
    
    BRITISH TRANSCO FINANCE (NO 2) LIMITED
    
    Cayman Islands21.
    
    BRITISH TRANSCO FINANCE (NO 3) LIMITED
    
    England & Wales22.
    
    BRITISH TRANSCO FINANCE (NO 5) LIMITED
    
    England & Wales23.
    
    BRITISH TRANSCO FINANCE INC
    
    USA24.
    
    BRITISH TRANSCO INTERNATIONAL FINANCE BV
    
    The Netherlands25.
    
    BRITNED DEVELOPMENT LIMITED (50%)
    
    England & Wales26.
    
    BROKEN BRIDGE CORP.
    
    USA27.
    
    C4GAS SAS (47.5%)
    
    France28.
    
    COLONIAL GAS COMPANY (d/b/a National Grid)
    
    USA29.
    
    CONNECTICUT YANKEE ATOMIC POWER COMPANY (19.5%)
    
    USA30.
    
    CORESO SA
    
    Belgium31.
    
    DIRECT GLOBAL POWER, INC. (26%)
    
    USA32.
    
    EASTERN ASSOCIATED SECURITIES CORP.
    
    USA33.
    
    EASTERN RIVERMOOR COMPANY, INC.
    
    USA34.
    
    ELEXON LIMITED
    
    England & Wales35.
    
    ENERGIS PLC (33.06%)
    
    England & Wales36.
    
    ENERGYNORTH NATURAL GAS, INC. (d/b/a National Grid)
    
    USA37.
    
    ENPORION, INC. (12.71%)
    
    USA38.
    
    ESSEX GAS COMPANY (d/b/a NATIONAL GRID)
    
    USA39.
    
    EUA ENERGY INVESTMENT CORPORATION
    
    USA40.
    
    EUA FRC II ENERGY ASSOCIATES
    
    USA41.
    
    EVIONYX, INC. (16%)
    
    USA42.
    
    FIRST POINT ENERGY CORPORATION (10%)
    
    USA43.
    
    FULCRUM CONNECTIONS LIMITED
    
    England & Wales44.
    
    FULCRUM GAS SERVICES LIMITED
    
    England & Wales45.
    
    FULCRUM GROUP HOLDINGS LIMITED
    
    England & Wales46.
    
    FULCRUM INFRASTRUCTURE SERVICES LIMITED
    
    England & Wales47.
    
    FULCRUM PIPELINES LIMITED
    
    England & Wales48.
    
    GRANITE STATE ELECTRIC COMPANY (d/b/a National Grid)
    
    USA49.
    
    GRIDAMERICA HOLDINGS INC
    
    USA50.
    
    GRIDCOM LIMITED
    
    England & Wales51.
    
    HONEOYE STORAGE CORPORATION (52.2%)
    
    USA52.
    
    INVERSIONES ABC LTDA (50%)
    
    Chile53.
    
    IROQUOIS GAS TRANSMISSION SYSTEM, L.P. (20.4%)
    
    USA54.
    

IROQUOIS PIPELINE OPERATING COMPANY (effectively 20.4% via Iroquois Gas Transmission System, L.P.)
    
    USA55.
    
    ISLAND ENERGY SERVICES COMPANY, INC.
    
    USA56.
    
    ISLANDER EAST PIPELINE COMPANY, LLC (50%)
    
    USA57.
    
    JOINT RADIO COMPANY LIMITED (50%)
    
    England & Wales58.
    
    KEYSPAN (U.K.)
    
    England & Wales59.
    
    KEYSPAN C.I. II, LTD
    
    Cayman Islands60.
    
    KEYSPAN C.I., LTD
    
    Cayman Islands61.
    
    KEYSPAN CI MIDSTREAM LIMITED
    
    USA62.
    
    KEYSPAN CORPORATION
    
    USA63.
    
    KEYSPAN ENERGY CORPORATION
    
    USA64.
    
    KEYSPAN ENERGY DEVELOPMENT CO.
    
    USA65.
    
    KEYSPAN ENERGY SERVICES INC. (d/b/a National Grid Energy Services)
    
    USA66.
    
    KEYSPAN ENERGY SERVICES NEW JERSEY, LLC
    
    USA67.
    
    KEYSPAN ENERGY SOLUTIONS, LLC (d/b/a National Grid Energy Services)
    
    USA68.
    
    KEYSPAN GAS EAST CORPORATION (d/b/a National Grid)
    
    USA69.
    
    KEYSPAN INTERNATIONAL CORPORATION
    
    USA70.
    
    KEYSPAN LUXEMBOURG S.A.R.L.
    
    Luxembourg71.
    
    KEYSPAN MHK, INC.
    
    USA72.
    
    KEYSPAN MIDSTREAM INC.
    
    USA




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##### 



EXHIBIT 8: LIST OF SUBSIDIARIES
 Name
    
    Country of Incorporation73.
    
    KEYSPAN PLUMBING & HEATING SOLUTIONS, LLC (90%) (d/b/a National Grid Energy Services)
    
    USA74.
    
    KEYSPAN PLUMBING SOLUTIONS, INC. (d/b/a National Grid Energy Services)
    
    USA75.
    
    KSI CONTRACTING, LLC
    
    USA76.
    
    KSI ELECTRICAL, LLC
    
    USA77.
    
    KSI MECHANICAL, LLC
    
    USA78.
    
    LAND MANAGEMENT AND DEVELOPMENT, INC
    
    USA79.
    
    LANDRANCH LIMITED
    
    England & Wales80.
    
    LANDWEST, INC
    
    USA81.
    
    LATTICE ENERGY SERVICES LIMITED
    
    England & Wales82.
    
    LATTICE GROUP EMPLOYEE BENEFIT TRUST LIMITED
    
    England & Wales83.
    
    LATTICE GROUP INTERNATIONAL HOLDINGS LIMITED
    
    England & Wales84.
    
    LATTICE GROUP PLC
    
    England & Wales85.
    
    LATTICE GROUP TRUSTEES LIMITED
    
    England & Wales86.
    
    LATTICE OPSCO LIMITED
    
    England & Wales87.
    
    LATTICE TELECOM FINANCE (NO 1) LIMITED
    
    Isle of Man88.
    
    MAINE YANKEE ATOMIC POWER COMPANY (24%)
    
    USA89.
    
    MAINSTREAM FORTY-SEVEN LIMITED
    
    England & Wales90.
    
    MARQUEZ DEVELOPMENT CORP.
    
    USA91.
    
    MASSACHUSETTS ELECTRIC COMPANY (d/b/a National Grid)
    
    USA92.
    
    MEERESTEIJN FINANCE BV
    
    Netherlands93.
    
    MELMAR LIMITED
    
    Isle of Man94.
    
    METRO ENERGY, L.L.C.
    
    USA95.
    
    METROWEST REALTY LLC
    
    USA96.
    
    MILLENNIUM PIPELINE COMPANY, LLC (26.25%)
    
    USA97.
    
    MINOA FARMS DEVELOPMENT CO, LLC (50%)
    
    USA98.
    
    MYHOMEGATE, INC.
    
    USA99.
    
    MYHOMEKEY.COM, INC. (18.2%)
    
    USA100.
    
    MYSTIC STEAMSHIP CORPORATION
    
    USA101.
    
    NANTUCKET ELECTRIC COMPANY (d/b/a National Grid)
    
    USA102.
    
    NATGRID FINANCE HOLDINGS LIMITED
    
    England & Wales103.
    
    NATGRID FINANCE LIMITED
    
    England & Wales104.
    
    NATGRID INVESTMENTS LIMITED
    
    England & Wales105.
    
    NATGRID LIMITED
    
    England & Wales106.
    
    NATGRID ONE LIMITED
    
    England & Wales107.
    
    NATIONAL GRID (IOM) UK LTD
    
    Isle of Man108.
    
    NATIONAL GRID (IRELAND) 1 LIMITED
    
    Republic of Ireland109.
    
    NATIONAL GRID (IRELAND) 2 LIMITED
    
    Republic of Ireland110.
    
    NATIONAL GRID (SOUTHALL) GENERAL PARTNER LIMITED
    
    England & Wales111.
    
    NATIONAL GRID (SOUTHALL) LP LIMITED
    
    England & Wales112.
    
    NATIONAL GRID (US) HOLDINGS LIMITED
    
    England & Wales113.
    
    NATIONAL GRID (US) INVESTMENTS
    
    England & Wales114.
    
    NATIONAL GRID (US) INVESTMENTS 2 LIMITED
    
    England & Wales115.
    
    NATIONAL GRID (US) INVESTMENTS 3
    
    England & Wales116.
    
    NATIONAL GRID (US) INVESTMENTS 4 LIMITED
    
    England & Wales117.
    
    NATIONAL GRID (US) PARTNER 1 LIMITED
    
    England & Wales118.
    
    NATIONAL GRID (US) PARTNER 2 LIMITED
    
    England & Wales119.
    
    NATIONAL GRID AUSTRALIA PTY LIMITED
    
    Australia120.
    
    NATIONAL GRID BLUE POWER FINANCE LIMITED
    
    England & Wales121.
    
    NATIONAL GRID BLUE POWER LIMITED
    
    England & Wales122.
    
    NATIONAL GRID BRAZIL B.V.
    
    The Netherlands123.
    
    NATIONAL GRID BRAZIL FINANCE
    
    England & Wales124.
    
    NATIONAL GRID BRAZIL TRANSMISSION B.V.
    
    The Netherlands125.
    
    NATIONAL GRID CARBON LIMITED
    
    England & Wales126.
    
    NATIONAL GRID CHILE B.V.
    
    The Netherlands127.
    
    NATIONAL GRID COMMERCIAL HOLDINGS LIMITED
    
    England & Wales128.
    
    NATIONAL GRID CORPORATE SERVICES LLC
    
    USA129.
    
    NATIONAL GRID DEVELOPMENT HOLDINGS CORP.
    
    USA130.
    
    NATIONAL GRID EIGHT
    
    England & Wales131.
    
    NATIONAL GRID EIGHTEEN LIMITED
    
    England & Wales132.
    
    NATIONAL GRID ELECTRIC SERVICES LLC
    
    USA133.
    
    NATIONAL GRID ELECTRICITY TRANSMISSION PLC
    
    England & Wales134.
    
    NATIONAL GRID ELEVEN
    
    England & Wales135.
    
    NATIONAL GRID ENERGY MANAGEMENT, LLC
    
    USA136.
    
    NATIONAL GRID ENERGY SERVICES (NEW ENGLAND), LLC
    
    USA137.
    
    NATIONAL GRID ENERGY SERVICES, LLC
    
    USA138.
    
    NATIONAL GRID ENERGY SUPPLY, LLC
    
    USA139.
    
    NATIONAL GRID ENERGY TRADING SERVICES LLC
    
    USA140.
    
    NATIONAL GRID ENGINEERING & SURVEY INC.
    
    USA141.
    
    NATIONAL GRID EXPLORATION AND PRODUCTION, LLC
    
    USA142.
    
    NATIONAL GRID FIFTEEN LIMITED
    
    England & Wales143.
    
    NATIONAL GRID FINANCE B.V.
    
    The Netherlands144.
    
    NATIONAL GRID FIVE LIMITED
    
    England & Wales




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##### 



EXHIBIT 8: LIST OF SUBSIDIARIES
 Name
    
    Country of Incorporation145.
    
    NATIONAL GRID FOUR LIMITED
    
    England & Wales146.
    
    NATIONAL GRID FOURTEEN LIMITED
    
    England & Wales147.
    
    NATIONAL GRID GAS FINANCE (NO 1) PLC
    
    England & Wales148.
    
    NATIONAL GRID GAS HOLDINGS LIMITED
    
    England & Wales149.
    
    NATIONAL GRID GAS PLC
    
    England & Wales150.
    
    NATIONAL GRID GENERATION LLC
    
    USA151.
    
    NATIONAL GRID GLENWOOD ENERGY CENTER, LLC
    
    USA152.
    
    NATIONAL GRID GOLD LIMITED
    
    England & Wales153.
    
    NATIONAL GRID GRAIN LNG LIMITED
    
    England & Wales154.
    
    NATIONAL GRID HOLDINGS B.V.
    
    The Netherlands155.
    
    NATIONAL GRID HOLDINGS INC.
    
    USA156.
    
    NATIONAL GRID HOLDINGS LIMITED
    
    England & Wales157.
    
    NATIONAL GRID HOLDINGS ONE PLC
    
    England & Wales158.
    
    NATIONAL GRID HOLDINGS PTY LIMITED
    
    Australia159.
    
    NATIONAL GRID IGTS CORP.
    
    USA160.
    
    NATIONAL GRID INDIA B.V.
    
    The Netherlands161.
    
    NATIONAL GRID INDUS B.V.
    
    The Netherlands162.
    
    NATIONAL GRID INSURANCE COMPANY (IRELAND) LIMITED
    
    Republic of Ireland163.
    
    NATIONAL GRID INSURANCE COMPANY (ISLE OF MAN) LIMITED
    
    Isle of Man164.
    
    NATIONAL GRID INSURANCE COMPANY (VERMONT)
    
    USA165.
    
    NATIONAL GRID INTERCONNECTORS LIMITED
    
    England & Wales166.
    
    NATIONAL GRID INTERNATIONAL LIMITED
    
    England & Wales167.
    
    NATIONAL GRID ISLANDER EAST PIPELINE LLC
    
    USA168.
    
    NATIONAL GRID JERSEY HOLDINGS FIVE LIMITED
    
    Jersey169.
    
    NATIONAL GRID JERSEY INVESTMENTS LIMITED
    
    Jersey170.
    
    NATIONAL GRID LAND AND PROPERTIES LIMITED
    
    England & Wales171.
    
    NATIONAL GRID LAND DEVELOPMENTS LIMITED
    
    England & Wales172.
    
    NATIONAL GRID LAND INVESTMENTS LIMITED
    
    England & Wales173.
    
    NATIONAL GRID LNG GP LLC
    
    USA174.
    
    NATIONAL GRID LNG LP
    
    USA175.
    
    NATIONAL GRID LNG LP LLC
    
    USA176.
    
    NATIONAL GRID MANQUEHUE B.V.
    
    The Netherlands177.
    
    NATIONAL GRID METERING LIMITED
    
    England & Wales178.
    
    NATIONAL GRID MIDDLE EAST FZCO
    
    United Arab Emirates179.
    
    NATIONAL GRID MILLENNIUM LLC
    
    USA180.
    
    NATIONAL GRID NE HOLDINGS 2 LLC
    
    USA181.
    
    NATIONAL GRID NETHERLANDS ONE BV
    
    The Netherlands182.
    
    NATIONAL GRID NETHERLANDS THREE BV
    
    The Netherlands183.
    
    NATIONAL GRID NETHERLANDS TWO BV
    
    The Netherlands184.
    
    NATIONAL GRID NINE LIMITED
    
    England & Wales185.
    
    NATIONAL GRID NINETEEN LIMITED
    
    England & Wales186.
    
    NATIONAL GRID NORTH EAST VENTURES INC
    
    USA187.
    
    NATIONAL GRID OFFSHORE LTD
    
    England & Wales188.
    
    NATIONAL GRID ONE LIMITED
    
    England & Wales189.
    
    NATIONAL GRID OVERSEAS LIMITED
    
    England & Wales190.
    
    NATIONAL GRID OVERSEAS TWO LIMITED
    
    England & Wales191.
    
    NATIONAL GRID PLC
    
    England & Wales192.
    
    NATIONAL GRID POLAND B.V.
    
    The Netherlands193.
    
    NATIONAL GRID PORT JEFFERSON ENERGY CENTER, LLC
    
    USA194.
    
    NATIONAL GRID PROCUREMENT BV
    
    The Netherlands195.
    
    NATIONAL GRID PROPERTY (HIGH WYCOMBE) LIMITED
    
    England & Wales196.
    
    NATIONAL GRID PROPERTY (NORTHAMPTON) LIMITED
    
    England & Wales197.
    
    NATIONAL GRID PROPERTY (TAUNTON) LIMITED
    
    England & Wales198.
    
    NATIONAL GRID PROPERTY (WARWICK) LIMITED
    
    England & Wales199.
    
    NATIONAL GRID PROPERTY DEVELOPMENTS LIMITED
    
    England & Wales200.
    
    NATIONAL GRID PROPERTY HOLDINGS LIMITED
    
    England & Wales201.
    
    NATIONAL GRID PROPERTY LIMITED
    
    England & Wales202.
    
    NATIONAL GRID PROPERTY (NORTHFLEET) LIMITED
    
    England & Wales203.
    
    NATIONAL GRID SERVICES, INC.
    
    USA204.
    
    NATIONAL GRID SEVEN LIMITED
    
    England & Wales205.
    
    NATIONAL GRID SEVENTEEN LIMITED
    
    England & Wales206.
    
    NATIONAL GRID SIX LIMITED
    
    England & Wales207.
    
    NATIONAL GRID SIXTEEN LIMITED
    
    England & Wales208.
    
    NATIONAL GRID TECHNOLOGIES INC.
    
    USA209.
    
    NATIONAL GRID TELEMETRY SOLUTIONS, LLC
    
    USA210.
    
    NATIONAL GRID TEN
    
    England & Wales211.
    
    NATIONAL GRID THREE LIMITED
    
    England & Wales212.
    
    NATIONAL GRID TRANSMISSION SERVICES CORPORATION
    
    USA213.
    
    NATIONAL GRID TWELVE LIMITED
    
    England & Wales214.
    
    NATIONAL GRID TWENTY FOUR LIMITED
    
    England & Wales215.
    
    NATIONAL GRID TWENTY LIMITED
    
    England & Wales216.
    
    NATIONAL GRID TWENTY ONE LIMITED
    
    England & Wales




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##### 



EXHIBIT 8: LIST OF SUBSIDIARIES
 Name
    
    Country of Incorporation217.
    
    NATIONAL GRID TWENTY THREE LIMITED
    
    England & Wales218.
    
    NATIONAL GRID TWO LIMITED
    
    England & Wales219.
    
    NATIONAL GRID UK LIMITED
    
    England & Wales220.
    
    NATIONAL GRID UK PENSION SERVICES LIMITED
    
    England & Wales221.
    
    NATIONAL GRID US 6 LLC
    
    USA222.
    
    NATIONAL GRID US 7 INC.
    
    USA223.
    
    NATIONAL GRID US LLC
    
    USA224.
    
    NATIONAL GRID USA
    
    USA225.
    
    NATIONAL GRID USA SERVICE COMPANY, INC.
    
    USA226.
    
    NATIONAL GRID UTILITY SERVICES LLC
    
    USA227.
    
    NATIONAL GRID ZAMBIA LIMITED
    
    England & Wales228.
    
    NEES ENERGY, INC.
    
    USA229.
    
    NEW ENGLAND ELECTRIC TRANSMISSION CORPORATION
    
    USA230.
    
    NEW ENGLAND ENERGY INCORPORATED
    
    USA231.
    
    NEW ENGLAND HYDRO FINANCE COMPANY, INC. (53.704%)
    
    USA232.
    
    NEW ENGLAND HYDRO-TRANSMISSION CORPORATION (53.704%)
    
    USA233.
    
    NEW ENGLAND HYDRO-TRANSMISSION ELECTRIC COMPANY, INC. (53.704%)
    
    USA234.
    
    NEW ENGLAND POWER COMPANY(d/b/a National Grid)
    
    USA235.
    
    NEW ENGLAND WHOLESALE ELECTRIC COMPANY
    
    USA236.
    
    NEWHC, INC.
    
    USA237.
    
    NEWPORT AMERICA CORPORATION
    
    USA238.
    
    NG CHICAGO I, LLC
    
    USA239.
    
    NG CHICAGO II, LLC
    
    USA240.
    
    NG FINANCING PARTNERSHIP 1
    
    Luxembourg241.
    
    NG FINANCING PARTNERSHIP 2
    
    Luxembourg242.
    
    NG JERSEY LIMITED
    
    Jersey243.
    
    NG LEASING LIMITED
    
    England & Wales244.
    
    NG LUXEMBOURG 3 SARL
    
    Luxembourg245.
    
    NG LUXEMBOURG 4 SARL
    
    Luxembourg246.
    
    NG LUXEMBOURG 5 SARL
    
    Luxembourg247.
    
    NG LUXEMBOURG 6 SARL
    
    Luxembourg248.
    
    NG LUXEMBOURG 7 SARL
    
    Luxembourg249.
    
    NG LUXEMBOURG HOLDINGS LIMITED
    
    England & Wales250.
    
    NG LUXEMBOURG SA
    
    Luxembourg251.
    
    NG LUXEMBOURG TWO SARL
    
    Luxembourg252.
    
    NG NOMINEES LIMITED
    
    England & Wales253.
    
    NG PROCUREMENT HOLDINGS LIMITED
    
    England & Wales254.
    
    NG VILLIERS LIMITED PARTNERSHIP
    
    England & Wales255.
    
    NGC DO BRASIL PARTICIPACOES LTDA
    
    Brazil256.
    
    NGC EMPLOYEE SHARES TRUSTEE LIMITED
    
    England & Wales257.
    
    NGC INDUS LIMITED
    
    England & Wales258.
    
    NGC TWO LIMITED
    
    England & Wales259.
    
    NGC ZAMBIA LIMITED
    
    England & Wales260.
    
    NGET / SPT UPGRADES LTD
    
    England & Wales261.
    
    NGG (DELAWARE) LLC
    
    USA262.
    
    NGG FINANCE (NO 1) LIMITED
    
    England & Wales263.
    
    NGG FINANCE PLC
    
    England & Wales264.
    
    NGG TELECOMS HOLDINGS LIMITED
    
    England & Wales265.
    
    NGG TELECOMS LIMITED
    
    England & Wales266.
    
    NGM1 (GBR) LIMITED
    
    Gibraltar267.
    
    NGNE LLC
    
    USA268.
    
    NGRID INTELLECTUAL PROPERTY LIMITED
    
    England & Wales269.
    
    NGT FIVE LIMITED
    
    Cayman Islands270.
    
    NGT FOUR LIMITED
    
    Cayman Islands271.
    
    NGT HOLDING COMPANY (ISLE OF MAN) LIMITED
    
    Isle of Man272.
    
    NGT LUXEMBOURG ONE LIMITED
    
    England & Wales273.
    
    NGT ONE LIMITED
    
    England & Wales274.
    
    NGT TELECOM NO. 1 LIMITED
    
    England & Wales275.
    
    NGT TELECOM NO. 2 LIMITED
    
    England & Wales276.
    
    NGT THREE
    
    England & Wales277.
    
    NGT TWO LIMITED
    
    England & Wales278.
    
    NIAGARA MOHAWK ENERGY, INC.
    
    USA279.
    
    NIAGARA MOHAWK HOLDINGS, INC.
    
    USA280.
    
    NIAGARA MOHAWK POWER CORPORATION (d/b/a National Grid)
    
    USA281.
    
    NICODAMA BEHEER V B.V.
    
    Netherlands282.
    
    NM PROPERTIES, INC.
    
    USA283.
    
    NM URANIUM, INC.
    
    USA284.
    
    NMP LIMITED
    
    England & Wales285.
    
    NORTH EAST TRANSMISSION CO., INC.
    
    USA286.
    
    NORTHEAST GAS MARKETS LLC (90%)
    
    USA287.
    
    ONSTREAM METERING SERVICES LIMITED
    
    England & Wales288.
    
    OPINAC NORTH AMERICA, INC.
    
    USA




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##### 



EXHIBIT 8: LIST OF SUBSIDIARIES
 Name
    
    Country of Incorporation289.
    
    PATIENCE REALTY CORP.
    
    USA290.
    
    PCC LAND COMPANY, INC.
    
    USA291.
    
    PHILADELPHIA COKE CO., INC.
    
    USA292.
    
    PORT GREENWICH LIMITED
    
    England & Wales293.
    
    PORT OF THE ISLANDS NORTH LLC
    
    USA294.
    
    PRUDENCE CORPORATION
    
    USA295.
    
    SCC UNO SA
    
    Chile296.
    
    SECOND STREET ASSOCIATES, LLC (50%)
    
    USA297.
    
    SENECA UPSHUR PETROLEUM, INC. (d/b/a National Grid)
    
    USA298.
    
    STARGAS NOMINEES LIMITED
    
    England & Wales299.
    

STEUBEN GAS STORAGE COMPANY (effectively 30.29% via Arlington Associates LP 75% ownership)
    
    USA300.
    
    SUPERGRID ENERGY TRANSMISSION LIMITED
    
    England & Wales301.
    
    SUPERGRID LIMITED
    
    England & Wales302.
    
    TELECOM INTERNATIONAL HOLDINGS LIMITED
    
    England & Wales303.
    
    THAMESPORT INTERCHANGE LIMITED
    
    England & Wales304.
    
    THE BROOKLYN UNION GAS COMPANY (d/b/a National Grid NY)
    
    USA305.
    
    THE NARRAGANSETT ELECTRIC COMPANY (d/b/a National Grid)
    
    USA306.
    
    THE NATIONAL GRID GROUP QUEST TRUSTEE COMPANY LTD
    
    England & Wales307.
    
    THE NATIONAL GRID INVESTMENTS COMPANY
    
    England & Wales308.
    
    TRANSCO LIMITED
    
    England & Wales309.
    
    TRANSGAS, INC.
    
    USA310.
    
    UMICO HOLDINGS INC (34.29%)
    
    USA311.
    
    UNIT 40 SUBLESSOR LLC
    
    USA312.
    
    UPPER HUDSON DEVELOPMENT INC
    
    USA313.
    
    UTILITY METERING SERVICES LIMITED
    
    England & Wales314.
    
    VALLEY APPLIANCE AND MERCHANDISING COMPANY
    
    USA315.
    
    VILLIERS FINANCE SA (44%)
    
    Luxembourg316.
    
    WAYFINDER GROUP, INC.
    
    USA317.
    
    XOSERVE LIMITED (56.5%)
    
    England & Wales318.
    
    YANKEE ATOMIC ELECTRIC COMPANY (34.5%)
    
    USA