Traders book Greek gas route

More than 45% of the available gas export capacity from Greece into Bulgaria has now been booked in DESFA's annual auctions for the next four gas years (in.gr, iefimerida). The buyers are DEPA Commercial, Greece's main gas trader, and Atlantic SEE LNG Trade. They are paying up front for multi-year rights on a route built to move non-Russian gas north through southeast Europe.

The volume is not large: about 13,000 MWh a day, according to iefimerida. But a multi-year capacity booking tells you more than a spot cargo ever could. It means traders see enough value in the route to reserve space before they know exactly where the gas will be bought, sold or priced. The harder question is how much that really moves Europe towards energy independence.

Buying a Lane, Not the Fuel

A capacity auction does not sell gas. It sells the right to use a particular entry or exit point on the pipeline network, under EU rules that standardise how cross-border capacity is allocated (EU CAM network code). It is closer to reserving a lane on a motorway than buying the cargo itself. The road space is guaranteed, but the trader still needs the car, the fuel and somewhere worth driving to.

To move gas, a trader still needs a seller and a buyer. It has to nominate the shipment the day before, secure every next leg of the route and deliver the gas at a price that works. Capacity can be used fully, used partly, held as insurance or left idle if the price difference between markets disappears.

Bulgaria Gets the Gas, but at What Cost Farther North?

The clearest evidence is already visible just north of Greece. Bulgaria receives non-Russian gas through infrastructure linked to Greece. The Greece-Bulgaria interconnector, known as IGB, carries 3 bcm a year, with plans to expand towards 5 bcm (ICGB). Bulgaria's energy regulator, KEVR, set the July regulated gas price at €37.70/MWh before access charges, transmission tariffs, excise and VAT (KEVR, Fakti). That price already reflects a supply mix including Azeri pipeline gas and LNG bought at auction.

So the pipes are there. The commercial case farther north is less settled. LNG arriving at a Greek terminal has to be turned back into gas, injected into the Greek grid, moved to the Bulgarian border and then pushed onwards through Romania, Hungary or Slovakia. Each border adds a regulated transmission tariff (EU tariff network code). Every crossing turns a story about political diversification into a test of price.

According to Serbia Energy, Bulgaria's regulated price was about €4/MWh below TTF futures, the European benchmark wholesale gas price set at the Dutch trading hub. By the time that same gas reaches a factory in Hungary or Slovakia, transport costs may have swallowed the margin.

Hungary and Slovakia remain roughly 70–80% dependent on Russian gas, mainly through the TurkStream pipeline (ACER, Euronews). Slovakia's dominant supplier, SPP, presents diversification as a security measure rather than a cheaper source of supply (SPP). Alternative routes give these countries leverage and emergency cover. They do not yet guarantee cheaper gas.

Optionality, Not Independence

Russian gas still accounts for about 12% of EU demand. ACER's July monitoring found Russian pipeline imports in early 2026 up 7%, with LNG shipments up 11% compared with the previous period (MondoVisione, ACER). Dependency has been reduced, not removed. The European Commission's Gas Coordination Group has reported no immediate security-of-supply concerns (European Commission), which also reduces the pressure to use every available corridor at once.

DESFA's auction is a real signal that southeast Europe is buying the infrastructure rights needed to loosen its dependence on Russia. Traders do not reserve capacity for years unless the route has commercial credibility. But diversification is still only partly proven. The evidence that matters now is physical flow data from ENTSOG showing booked capacity becoming actual deliveries north through Romania and Hungary, and a cost comparison showing the route can compete with legacy Russian supply on price, not only on security.