Bulgargaz has published LNG delivery volumes handled through BOTAS Turkish terminals under its 13-year agreement, while payment information remains withheld. The Bulgarian state supplier disclosed the physical volumes but did not release contract payment data that is at the centre of a dispute.
LNG volumes delivered via Turkish terminals
Deliveries under the arrangement increased from 664,438 MWh in 2023 to 3.34 million MWh in 2024 and 4.38 million MWh in 2025. The volumes corresponded to about 2.5%, 12% and 15.8% of Bulgaria’s annual gas consumption in those years. Their contribution to total imports was smaller, at below 1% in 2023, below 4% in 2024 and 5.4% in 2025.
Court ruling and BOTAS position on financial disclosure
Bulgargaz said BOTAS opposed publication of the financial data despite a Sofia Administrative Court decision. The ruling required disclosure of both delivery volumes and payments on public-interest grounds.
Reserved-capacity cost estimates and arrears
Earlier estimates cited in the report placed reserved-capacity costs at around €500,000 per day. Those figures were described as potentially rising to €550,000 in 2026 and €600,000 in 2027. Separately, President Rumen Radev said Bulgaria owed BOTAS around $360 million, with arrears building from July 2024.
Status of the BOTAS contract and renegotiation timeline
The contract was signed by a caretaker government in 2023 and has also been referred to a prosecutor’s investigation. In July, Bulgaria and BOTAS agreed to suspend implementation for 15 months while terms are renegotiated.
The publication of physical volumes addresses part of the debate over the agreement. The broader question of total costs for securing Turkish terminal and network access relative to gas actually used remains unresolved.
