Ukraine doubles bookings of gas capacity via Trans-Balkan corridor
Ukrainian traders have reserved 1.2 million cubic meters per day for December deliveries from Greece — the highest level since the route's launch. At the auction on November 24, more than half of the offered capacity was booked.
By Oleg Bazylewicz
December 1, 2025 · 1 min read
Ukrainian traders have booked 1.2 million cubic meters per day of capacity for gas supplies from Greece for December — the highest level since the launch of the Transbalkan corridor.
Capacity bookings
The Transbalkan corridor was created by the gas transmission system operators of five countries: Bulgarian Bulgartransgaz EAD, Greek DESFA SA, Romanian Transgaz SA, Moldovan VestMoldTransgaz SRL and the Ukrainian Gas Transmission System Operator (OGTSU). Together they offered a bundled product for transporting gas from Greece to Ukraine.
At the regional RBP auction held on 24 November, participants reserved more than half of the capacities offered by the operator for Route 1 for December. Operators offered 2.2 million cubic meters per day, of which about 60% was booked — a record since the route began operations. In November, booking volumes were half as large, according to Olga Buslavets.
Tariffs and discounts
To make the route more attractive, participants agreed on a uniform transit tariff with a 25% discount. The Ukrainian operator applied the largest discount among participants — 46%.
New routes and auctions
Consultations are ongoing regarding the launch of additional routes — Route 2 and Route 3, which are likely planned to start in January 2025. Since May of this year, the operators have been holding monthly auctions to allocate capacities; the auctions take place on the fourth Monday of the month and use a single-price auction mechanism.
Over the period since July 2025, approximately 32 million cubic meters of natural gas were delivered to Ukraine via Route 1.
- On 30 October, gas imports via the Transbalkan corridor were resumed after a two-month pause.
