First oil has begun to flow from the Shaw Field in the North Sea’s Montrose Area, operator Repsol Sinopec Resources UK said in a news release.

The development is part of the Montrose Area Redevelopment (MAR) project, which is intended to enhance infrastructure in the area. As explained in a news release by the company, the project incorporates the development of the Godwin, Cayley and Shaw fields and a new bridge-linked production platform connected to the Montrose Alpha to provide additional process and plant support facilities.

The Godwin Field has been developed via an extended reach well from the Arbroath platform, while the Cayley and Shaw fields have been developed as subsea tiebacks to the BLP, the release said. Shaw production will be followed by Cayley by the end of second-quarter 2017. Gross incremental production is expected to peak at up to 40,000 barrels of oil equivalent a day.

In all, the project is expected to unlock up to 100 MMboe of additional reserves and extend the life of the existing Montrose Area fields beyond 2030, the release said. Montrose Alpha was originally commissioned in 1976, the release said.

Partnering with Repsol Sinopec on the project is Marubeni Oil & Gas (U.K.) Ltd.