The Spanish National Commission on Markets and Competition (CNMC) has sparked a dispute between electricity and gas companies over the financial remuneration of their networks. The draft proposal from CNMC has particularly impacted electricity firms, with Endesa being the most affected, experiencing notable declines in the Ibex stock market and contributing to a collective loss of nearly €2 billion among electric utilities. Concurrently, Endesa and Iberdrola have initiated legal action against the Spanish government, jointly claiming €778 million related to nuclear waste fees. Specifically, Endesa has filed a compensation claim of €454 million against the government due to the increase in the 'Enresa' nuclear waste tax amid ongoing debates about nuclear plant closures. In other industry news, Spain's oil producer Repsol reportedly suffered approximately €170 million in losses last quarter due to power outages affecting its refineries and chemical plants. Gas infrastructure company Enagás reported a net profit of €176 million for the first half of 2025, driven by capital gains, with revenues increasing and debt levels remaining controlled, maintaining its strategic outlook despite results falling short of analyst consensus.