Enagás completes permanent sealing of Castor underground gas storage wells, estimates EUR 241 million cost

• Enagás completed permanent sealing of the 13 wells at the Castor offshore underground gas storage site.
• Work installed three plugs per well to permanently isolate the wells under Spanish safety, environmental, and offshore standards.
• Estimated total cost for the well-sealing program is EUR 241 million, pending final certifications.
• The project moves Castor into the final phase to dismantle surface infrastructure offshore and onshore.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Enagas SA published the original content used to generate this news brief on October 05, 2026, and is solely responsible for the information contained therein.