| A2A S.P.A. | VIA LAMARMORA 230, BRESCIA |
| ALPIQ AG | BAHNHOFQUAI 12, OLTEN (CH) |
| AOT ENERGY SWITZERLAND AG | HINTERBERGSTRASSE 16, STEINHAUSEN (SWITZERLAND) |
| AXPO ITALIA SPA | VIA QUATTRO NOVEMBRE 149, ROMA |
| BP GAS MARKETING LIMITED | CHERTSEY ROAD, SUNBURY ON THAMES, MIDDLESEX (REGNO UNITO) |
| DUFERCO ENERGIA SPA | VIA PAOLO IMPERIALE 4, GENOVA |
| DXT COMMODITIES SA | VIA TREVANO 2A, LUGANO, CANTON TICINO, SVIZZERA |
| EDF TRADING LIMITED | 80 VICTORIA STREET, SWE1E5JC, REGNO UNITO |
| EDISON SPA | FORO BUONAPARTE 31, MILANO |
| ELECTROROUTE ENERGY TRADING LIMITED | MARKET HOUSE, MARKET SQUARE, LETTERKENNY, CO DONEGAL (IRELAND) |
| ENEL GLOBAL TRADING SPA | VIALE REGINA MARGHERITA, 125, ROMA |
| ENET ENERGY SA | VIA SAN GOTTARDO, 10 LUGANO SVIZZERA |
| ENGIE ITALIA SPA | VIA CHIESE 72, MILANO |
| ENI SPA | PIAZZALE ENRICO MATTEI 1, ROMA |
| ENOI SRL IN LIQUIDAZIONE | VIA VINCENZO MONTI, 15, MILANO |
| EP COMMODITIES A.S. | VIA KLIMENTSKÁ 1216/46, PRAGUE (CZECH REPUBLIC) |
| EXXONMOBIL GAS MARKETING EUROPE LIMITED | VIA ERMYN HOUSE ERMYN WAY, LEATHERHEAD SURREY (UK) |
| GUNVOR INTERNATIONAL BV AMSTERDAM GENEVA BRANCH | RUE DU RHONE 80-84, GINEVRA, SVIZZERA |
| HB TRADING SPA | VIA VINCENZO MONTI 48, MILANO |
| HERA TRADING SRL | VIA DEL TEATRO 5, TRIESTE |
| IBERDROLA ENERGIA ESPANA, S.A.U. | PLAZA EUSKADI 5, BILBAO, SPAGNA |
| KOLMAR BULGARIA EOOD | PATRIARH EVTIMIY BLVD. 66, SOFIA, BULGARIA, |
| MET INTERNATIONAL AG | NEUHOFSTRASSE 24, BAAR (SVIZZERA) |
| MYTILINEOS SA | VIA ARTEMIDOS, 8 MAROUSI, ATTICA, GRECIA |
| NFE GAS TRADING LIMITED | 32 MOLESWORTH STREET, DUBLIN 2 (IRELAND) |
| NUOVA ELETTRA S.P.A. | LARGO PANNONIA 23, ROMA |
| OMV GAS MARKETING & TRADING GMBH | TRABRENNSTRASSE 6-8, VIENNA (AUSTRIA) |
| PETROCHINA INTERNATIONAL (LONDON) CO., LIMITED | THE ADELPHI, 1-11 JOHN ADAM STREET, LONDON |
| REPSOL LNG HOLDING SA | CALLE MÉNDEZ ALVARO 44, MADRID (SPAGNA) |
| RWE SUPPLY & TRADING GMBH | RWE PLATZ 6, ESSEN, GERMANIA |
| SEFE MARKETING & TRADING LIMITED | 20 TRITON STREET, LONDRA NW1 3BF |
| SHELL ENERGY EUROPE LIMITED | SHELL CENTRE,YORK ROAD, SE1 7NA, LONDRA |
| SOCAR TRADING SA | PLACE DE LA GARE, LUXEMBOURG |
| TITAN SUPPLY B.V. | PIET HEINKADE 93B, AMSTERDAM, NETHERLANDS |
| TOTALENERGIES GAS & POWER LIMITED, LONDON, MEYRIN-GENEVA BRANCH | ROUTE DE L’AÈROPORT 10, GENEVA (SWITZERLAND) |
| TRAFIGURA TRADING (EUROPE) SARL | RUE DE JARGONNANT 1, GINEVRA (SVIZZERA) |
| VITOL S.A. | PLACE DES BERGUES, 3 GENÈVE |
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