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Big Six in the UK - statistics & facts | Statista
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Let's take back our energy
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Are the Big Six suppliers losing their grip on the UK energy market? - IG UK
Energy giants brought down to size as challengers dominate Which?'s annual satisfaction survey – Which? Press Office
Big Six energy firms 'cartel' after they ALL hike prices to the same amount | The Sun
Big Six energy suppliers fight back against the minnows by slashing tariffs - but do small firms still offer the best value? | This is Money
Revealed: Big Six energy firms banked more than £7bn profit in last five years | The Independent
Big Six energy companies overcharging loyal customers by up to £234 a year says watchdog | The Independent | The Independent
Big six energy suppliers - Uswitch
