Portland Gas is a wholly owned subsidiary of Infrastrata plc and is developing a gas storage facility on the Isle of Portland.

Saving the Portland Dinosaur Footprints, 2009.

At a projected 1,000 million cubic metres (“mcm”) or 35 billion cubic feet (“bcf”) of working gas, the facility would be the largest of the publically announced onshore gas storage facilities in the UK. Planning permission was granted by Dorset County Council in May 2008 and Pipeline Construction Authorisation was granted by the BERR (now known as the Department of Energy and Climate Change) in July 2008. The gas storage facility is designed to inject or withdraw gas at 20mcm per day. The current estimate of total development cost for the project is £456m. The project will use brine compensation technology and will not require cushion gas.

The parent company of Portland Gas, Infrastrata plc, announced on 29 June 2010 that it has reached agreement with eCORP International, LLC on co-operation across all of its projects in the UK and continental Europe. The investment by eCORP, which is subject to final due diligence and formal agreements being agreed, would result in eCORP acquiring 50% of the share capital of the project company, Portland Gas Limited, in return for funding the next £22 million of project expenditure. Following the completion of the transaction Infrastrata and eCORP will each own 50% of the project. Under the terms of the agreement with eCORP, the project will be developed in phases with drilling of the first cavern well being the initial activity. It is anticipated that drilling will commence in the summer of 2011. Infrastrata and eCORP will jointly provide Portland Gas Limited with technical services under an agreement in connection with the development of the project.