Thailand will delay the auctions of the concessions for the Erawan and Bongkot gas fields for at least another month and expects to announce winners in the middle of next year, a senior official said on Monday.

Chevron operates the Erawan field and state-owned PTT Exploration and Production operates the Bongot field under licences set to expire in 2022 and 2023 respectively.

The fields have combined output of 2.2 billion cubic feet a day, about 76% of output from the Gulf of Thailand.