# Bulgarian natural gas market and supply shifts

> Live situation record from CLSTR: https://clstr.news/situations/bulgarian-natural-gas-market-and-supply-shifts
> Updated: 2026-08-31T18:01:04.000Z. Sources: 21. Developments: 2.

Bulgaria is navigating significant shifts in its energy landscape, characterized by changes in natural gas pricing, supply routes, and contractual arrangements. In late August, Bulgargaz proposed a 5.5% increase in natural gas prices for September, citing a decreasing share of low-cost Azerbaijani gas and the need to maintain supply volumes for heating companies. During this period, Bulgaria also froze its gas agreement with the Turkish state company BOTAŞ for 15 months to seek more favorable terms, while regional infrastructure saw expanded LNG routes connecting the Gulf of Mexico to Ukrainian storage via Greek and Romanian facilities.

By August 31, the Energy and Water Regulatory Commission (EWRC) officially approved the proposed September price of 41.60 EUR/MWh. While this represents a 5.5% monthly increase, the rate remains more than 30% lower than international gas exchange futures. The approved price mix incorporates volumes from long-term Azerbaijani contracts and LNG acquired through trader auctions, while also covering costs for transmission and storage at the Chiren facility. Market forecasts indicate that high prices may persist through autumn due to concerns over gas storage replenishment and geopolitical tensions in the Middle East.

## Timeline

### 2026-08-31: Energy markets in Southeast Europe face rising gas tariffs and storage mandates

Energy markets in Moldova, Bulgaria, and Romania face rising gas tariffs, new storage mandates, and strategic corporate shifts as regional demand and international market pressures fluctuate.

15 sources. https://clstr.news/cluster/bulgaria-approves-55-increase-in-september-natural-gas-prices

### 2026-08-26: Bulgaria manages energy shifts through gas price hikes and new LNG routes

Bulgaria is navigating energy shifts as Bulgargaz proposes a 5.5% gas price hike for September, renegotiates its BOTAŞ contract, and expands LNG transit routes toward Ukraine.

6 sources. https://clstr.news/cluster/bulgargaz-proposes-lng-supply-solutions-and-september-gas-price-hike

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Cite as: Bulgarian natural gas market and supply shifts. CLSTR, https://clstr.news/situations/bulgarian-natural-gas-market-and-supply-shifts