Antin Infrastructure Partners, a private equity firm focused on infrastructure investments, has signed an agreement to sell Kellas Midstream to BlackRock’s Global Energy & Power Infrastructure Funds (GEPIF III) and GIC, a leading global institutional investor, in a joint venture.

Kellas Midstream owns and operates key gas infrastructure in the UK Central and Southern North Sea. Kellas Midstream comprises: (1) the Central Area Transmission System (‘CATS’): a major gas transportation and processing system which takes gas from the Central North Sea to the CATS reception and processing terminal at Teesside in the North East of England; (2) the Esmond Transportation System (“ETS”): a key subsea pipeline in the Southern North Sea connecting four producing fields to the Bacton gas terminal on the North Sea coast; and (3) the Humber Gathering System (HGS): a first-of-its-kind greenfield project to build the infrastructure required for the development of the large Tolmount gas field in the Southern North Sea.

Antin initially acquired a 63% stake in CATS from BG (now Shell) in 2014, later acquiring a 36% stake from BP in 2015. Having fully carved out the business and established a standalone entity, Kellas Midstream grew substantially both via organic growth with connection to new major gas fields such as Stella, Caley & Shaw, Culzean, and Vorlich and by expansion in the UK Southern North Sea with the ETS acquisition and the HGS development. Throughout Antin’s period of ownership, it focused on achieving outstanding operational performance whilst maintaining a clear focus on Health & Safety. Kellas Midstream maintained a perfect safety record with zero Lost Time Incidents for 16 consecutive years.

The transaction is expected to close in early 2020.