Gas transit agreement between Ukraine and Poland extended until October 2026
Photo: OGTSU

The Gas Transmission System Operator of Ukraine (GTSOU) and the Polish operator Gaz-System have extended their agreement on guaranteed capacities for gas transportation from Poland to Ukraine until October 2026, according to GTSOU's press service.

The daily transportation capacity is 6.0 million cubic meters at 0°C and 6.4 million cubic meters at +20°C, providing an annual capacity of approximately 2.2–2.3 billion cubic meters.

Acting Director General Vladyslav Medvediev emphasized that the agreement is critical for Ukraine’s energy security, as it ensures access to global liquefied natural gas (LNG) supplies via Polish terminals.

Moreover, it enables Ukraine to make use of its underground gas storage (UGS) facilities and participate in gas market balancing, potentially generating additional revenue.

In addition to supplies from Poland, Ukraine also imports gas through Hungary and Slovakia (each with a guaranteed capacity of 9.8 million cubic meters per day), and plans to expand imports from Romania and Moldova via the Trans-Balkan pipeline (guaranteed capacity of 3 million cubic meters per day).

The availability of diversified supply routes is vital for ensuring Ukraine’s gas needs are met—especially now, as the country has exited the heating season with historically low reserves.

According to Serhiy Makogon, former head of GTSOU, traders are actively booking volumes for June along all major corridors: from the west via Hungary and Slovakia, and from the north via Poland.

"However, to reach the target of accumulating 13.6 bcm in underground storage by November 1—including 4.6 bcm of buffer gas—daily imports need to at least double," Makogon wrote on Facebook. "The key constraint to increasing imports is not the availability of gas—there is sufficient supply in Europe at acceptable prices—but rather a lack of funding at Naftogaz."