Part I — The situation

On Wednesday, 30 September 2026, three intertwined deadlines expire in Serbia. According to Euractiv’s report, this is when Serbia’s Russian gas supply agreement runs out. At the same time, the US sanctions exemption for NIS (Naftna Industrija Srbije, the oil company supplying the Serbian market) expires. This is also Washington’s deadline for selling the company’s Russian stake. The prospective buyer is Mol. On 26 September, Serbian President Aleksandar Vučić spoke by phone with Vladimir Putin about extending the gas agreement and about the NIS affair. After the call he wrote that an extension is expected. According to Euractiv, Serbia has been unable to conclude a long-term contract since summer 2025, is living on short extensions, and continues to pay 318 euros per 1,000 cubic metres instead of the market price of 868 euros. Vučić resigns today, 27 September, in order to run as a candidate for prime minister in the early election of 25 October (Euractiv, 26 September 2026; the article was not publicly downloadable, the content is based on the summary in MIAK’s foreign press monitor). On the same day, according to the outlet, Brussels linked high gas prices to a supply crisis. According to the article’s subheading, the Commission is proposing to scale back street lighting and to limit heating temperatures in public buildings.

The background to the case is well known. Last year the United States imposed sanctions on NIS because 56.15 per cent of it is owned by Gazprom and its subsidiary Gazprom Neft. In January Mol signed a provisional agreement to buy the stake (HVG, 1 August 2026). On 10 June Mol and the Serbian state also agreed on shareholder relations. If Mol buys the Russian stake and the transaction is also approved by the US Treasury’s sanctions office (OFAC, Office of Foreign Assets Control), the Serbian state will buy a further five per cent. Mol, in turn, guarantees the uninterrupted operation of the refinery supplying the Serbian market (Portfolio, 10 June 2026). Since then OFAC has repeatedly extended NIS’s operating licence and Mol’s negotiating licence for short periods, typically one month. According to Balkan Insight, the July extension was already the seventh reprieve since the start of the year, and after half a year the Serbian public still knew nothing substantive about the state of the deal (Balkan Insight, 15 July 2026). At the beginning of August another one-month reprieve came, during which Serbia could import crude oil. In July, however, low water levels on the Danube meant tankers could only be filled to a quarter, so the country received only one quarter of the planned oil volume (HVG, 1 August 2026). In May MIAK wrote about the transparency package and the diversification path of the deal (the analysis of Mol’s NIS acquisition), and in September about the capacity test of the Adriatic crude oil pipeline (The JANAF dispute should be settled by measurement).

MIAK’s reading: the date of 30 September is not the closing day of a transaction but a decision point with three possible outcomes. The deal is done, another postponement comes, or the exemption expires without an agreement. Each of the three outcomes places different tasks on the Hungarian government, and on the Serbian side there will be an interim head-of-state situation precisely on the day of the decision. The pattern so far — short extensions, last-minute announcements — is no reason for complacency. This is exactly why the Hungarian tasks should be set in advance, outcome by outcome, not after the deadline.

Part II — Grounding in the literature

Four sources provide the interpretive framework. According to the OECD’s 2025 survey of the European Union and the euro area (Economic Surveys), after the loss of Russian gas the EU internal energy market successfully reallocated scarce volumes among the member states. Russian gas, however, was replaced with more expensive liquefied natural gas (LNG). A supply disruption in the neighbourhood can therefore be handled primarily through market integration and price, not national isolation. The European Union’s 2016 global strategy (Shared Vision, Common Action) prescribes the diversification of sources, routes and suppliers, and states that energy infrastructure agreements with third countries must be transparent. According to the strategy, energy security is a challenge shared with the Western Balkans that can only be addressed together. According to the OECD’s March 2026 interim economic report (Economic Outlook, Interim Report), state assistance in response to an energy price shock is good if it is targeted, preserves the incentive to save and has an expiry mechanism. The textbook of two Romanian international relations scholars, Valentin Naumescu and Diana-Nicoleta Petrut (Foreign Policy and Diplomacy), describes economic diplomacy as the interaction between domestic decision-making and international negotiation, in which the company is an independent actor. The detailed discussion of the literature — by author, with quotations — is in section 6.4 Literature in detail.

Part III — MIAK’s concrete proposal

MIAK proposes three measurable measures. The first addresses the deadline, the second supply in the south, and the third winter gas demand.

3.1 A public, three-outcome scenario sheet (publication by 29 September, situation report within 72 hours of the deadline)

MIAK proposes that the Government publish a short, public scenario sheet for the 30 September deadline by 29 September. Outcome A) is agreement: OFAC approves the sale and Mol closes the transaction. In that case the Hungarian task is to monitor the post-closing transition, above all the refinery’s crude oil supply. Outcome B) is postponement: another short exemption, continued negotiations, a short extension of the gas contract. In that case the task is to put the new deadline in the calendar and continue liaison with Washington. Outcome C) is failure: the exemption expires without an agreement. In that case the southern supply readiness under point 3.2 must be activated immediately. The sheet should name who is responsible for each task: the Ministry of Foreign Affairs for the foreign policy channel, and the ministry responsible for energy policy for supply readiness. The situation assessment should be completed within six hours in line with the KP7 crisis management protocol, and liaison with Washington should run within the KP8 economic diplomacy framework, through a designated contact person. The sheet should not contain Mol’s business secrets: the price, the financing and the negotiating position. Mol is a listed company and reports on its own transactions on the Budapest Stock Exchange (BÉT) in accordance with capital market disclosure rules. The government should talk about what is a state task: diplomatic steps and security of supply. In the economic diplomacy framework of Naumescu and Petrut (see 6.4.4), this is a clean separation between the level of domestic government decision-making and that of corporate negotiation.

3.2 Southern supply readiness: fuel and gas transit (weekly report from 1 October until the end of the heating season)

Under Outcome C), the most immediate Hungarian risk is not Mol’s balance sheet but supply in the border region. If the Serbian refinery gets no crude oil, Serbia will import fuel, and the increase in demand may also show up at petrol stations along the border in the southern Great Plain. MIAK proposes that from 1 October the ministry responsible for energy policy publish weekly the number of supply disruptions at petrol stations in Csongrád-Csanád and Bács-Kiskun counties. It should also set in advance the threshold above which it draws on strategic crude oil stocks. On the gas side, Russian gas arriving in Hungary enters the country at Kiskundorozsma via the TurkStream pipeline system, through Bulgaria and Serbia. The expiry of the Serbian supply contract does not in itself mean the end of transit, but the Serbian interim situation also weighs on the risk environment of transit. The daily flow data of the southern entry point should therefore be publicly available in an accessible form. There should also be a pre-agreed substitution plan for the loss of southern supply via the Austrian, Slovak, Romanian and Croatian interconnections. The EU global strategy (see 6.4.2) explicitly prescribes the diversification of routes and the development of reverse flows. According to the OECD’s EU survey (see 6.4.3), in 2022 the internal market handled scarcity precisely through such reallocation. The proposal builds on programme points K7 energy market shock resilience and KP10 regional resilience.

3.3 Winter gas demand readiness with respect for competences (draft government decree by 1 November, incentive for local governments in the 2027 budget)

In response to the Brussels demand reduction proposal, MIAK proposes a domestic response that respects the division of competences. The Government may decide by decree on the heating temperature of central government buildings, for the bodies under its own direction. The draft should be put to public consultation by 1 November, with exceptions for healthcare and education. Street lighting, however, is a local government task. The Government cannot order it, only encourage it. The incentive should be a voluntary grant programme: it should finance modern, controllable street lighting, and part of the savings should stay with the municipality. Adopting the budget act is the competence of the National Assembly, so funding for the programme should appear in the 2027 budget bill. Support for households should be targeted (SZ1). It should be tied to a pre-set price threshold (G25) and have an expiry date. According to the OECD interim report (see 6.4.1), the 2022–23 support measures were often poorly targeted and expensive, and a general price cap weakens the incentive to save.

The common principle of the three proposals is that a deadline expiring in a neighbouring country should not take the Hungarian public administration by surprise. What is needed is outcomes known in advance, responsible parties designated in advance and thresholds set in advance. According to the literature framework, the key to security of supply is diversified routes, a functioning internal market and targeted, time-limited support. And the roles of the state and the company must be cleanly separated.

Part IV — Expected effects and risks

Dimension Expected effect Risk
Foreign policy A predictable, pre-agreed Hungarian position towards Washington and Belgrade The public scenario may also be read as a negotiating signal; mentioning Outcome C) may seem self-fulfilling
Economy Mol’s business secrets are protected; investors inform themselves from stock exchange disclosures If government and corporate communication diverge, share price volatility and loss of trust may follow
Security of supply Data on southern petrol stations and the gas entry point are visible; the threshold for using stocks is known in advance Weekly data may show local shortages with a delay; opening strategic stocks early is expensive
Public administration Clear competences: the Government decides for its own bodies, local governments for street lighting The voluntary local government programme may spread slowly; the funding need burdens the 2027 budget
Society Targeted utility support for those in need; the incentive to save is preserved Targeting errors may leave out people in need; political pressure for general support is strong

The main question to weigh is the degree of publicity. A scenario sheet must not reveal a negotiating position and must not suggest that the government is preparing for failure. That is why MIAK proposes communicating not probabilities but conditional tasks: if this happens, then this is the step and this is the responsible party. The second question is the cost of supply readiness. The weekly report and the substitution plan are cheap; opening strategic stocks is expensive. The threshold must therefore be known in advance but strict. The third question is competence. Restricting street lighting is the most visible saving measure, but the Government cannot instruct local governments. If the central intention appears as an order, the programme becomes legally contestable and provokes political resistance. With a financial incentive, however, municipalities come to see savings as being in their own interest.

Part V — Measurability and summary

5.1 What is worth following? (suggested KPIs)

MIAK proposes following these key performance indicators (KPIs):

  • The scenario sheet on time: whether the three-outcome sheet was published by 29 September, and the situation report within 72 hours of the deadline. Suggested target: yes to both, and before every subsequent sanctions deadline as well.
  • Southern fuel supply: the weekly number of supply disruptions reported at petrol stations in Csongrád-Csanád and Bács-Kiskun counties. Suggested target: consistently zero until the end of the heating season.
  • Transparency of gas entry: whether the daily flow data of the southern entry point is available in an accessible form, and whether the substitution plan is completed by the end of 2026.
  • Winter demand reduction: the change in gas consumption of central government buildings compared with the 2025/26 winter, and the number of municipalities participating in the street lighting incentive programme by the end of 2027.
  • Targeted support: what percentage of energy support goes to the lowest-income 40 per cent, and whether the support has a fixed expiry date.

5.2 Summary

MIAK’s request to decision-makers: do not comment on the triple deadline of 30 September after the fact, but prepare for it in advance and in public. There should be a three-outcome scenario sheet with responsible parties, and Mol’s business secrets should stay with the company. There should be a weekly report on fuel and gas supply in the south, as well as a winter demand reduction plan. In it, the Government should act for its own bodies and encourage local governments with money, not instruct them.

Two MIAK foundational values are at play here. Transparency, because a deadline expiring in a neighbouring country is also a risk for Hungarian households and businesses, and the government can say what it is preparing for without harming corporate secrets. And evidence-based decision-making, because security of supply is shown by daily flow data, stock thresholds and targeting ratios, not by reassurances of the “it will be fine” type.

Part VI — Reasoning and further sources

6.1 Press framing by spectrum

In the international press, Euractiv framed the Serbian thread from the gas price angle. It highlighted Vučić’s optimism and the Russian contract price, which is less than a third of the market price. On the same day it ran the Brussels supply warning under the heading “supply crisis”. According to the outlet’s article from the previous day, however, German experts consider supply stable, and Berlin also supports the EU methane rules. Euractiv thus published an alarming and a reassuring signal at the same time — the two articles should be read together. Politico framed the Hormuz thread with Trump’s words (“I reject their offer”). It reported Iran’s conditions and the Wall Street Journal’s information that further military action may be on the table after the November midterm elections. Al Jazeera carried the Iranian side: according to Foreign Minister Abbas Araghchi, Tehran will not back down from its conditions, and President Masoud Pezeshkian said Iran no longer trusts negotiations with Washington. The longer arc of the NIS affair was described by Balkan Insight’s July analysis, titled Russia’s “long goodbye”. The outlet highlighted the lack of transparency and negotiations dragging on for months. It also quoted an analyst according to whom the Russian side does not actually want to sell, only to buy time. This framing also casts the 30 September deadline in a more doubtful light than Vučić’s optimism. In the international press, the Serbian deadline and the Hormuz round ran as separate stories. From a Hungarian perspective, the two meet in one place: the winter energy bill.

In the Hungarian economic segment, Portfolio reported on 26 September, based on a statement by MVM, that there are more than 4 billion cubic metres of gas in domestic storage facilities. According to the company, this is “amply sufficient” to supply households. The outlet framed the Hormuz rejection as a stalling of negotiations and the possibility of new bombings. The public-affairs and left-liberal segment reported the Hormuz decision in a factual way. Telex, following the BBC, highlighted Trump’s reasoning and his promise of a “big decision” after the midterm elections; HVG highlighted the Iranian conditions and the “Trump Strait” map. 24.hu and Népszava reported the news under similar headlines. The expiry of the Serbian gas contract and the NIS exemption on 30 September received no separate attention in the Hungarian articles of 26–27 September examined by MIAK. In the pro-government conservative segment, Magyar Nemzet covered energy prices from the employees’ side: because of higher fuel prices, trade unions are asking for the tax-free reimbursement of commuting costs to be raised from 30 forints to 60 forints per kilometre. This segment did not put the NIS deadline in focus either. From MIAK’s perspective, this is the most important framing lesson. The Hungarian public today sees the energy question as a matter of prices and storage, and barely sees the triple deadline in the neighbouring supply chain. Yet the storage level reduces the volume risk, not a disruption of the southern supply chain.

6.2 Facts and data

Data Value Source
Expiry of the Serbian gas contract, the NIS exemption and the sale deadline 30 September 2026 Euractiv, 26 September 2026
Serbia’s Russian contractual gas price 318 euros / 1,000 m³ (market price: 868 euros) Vučić’s statement, Euractiv, 26 September 2026
Long-term Serbian gas contract none since summer 2025; short extensions Euractiv, 26 September 2026
Russian stake in NIS 56.15% (Gazprom and Gazprom Neft) HVG, 1 August 2026; Portfolio, 10 June 2026
Provisional agreement between Mol and the Russian owners of NIS January 2026 HVG, 1 August 2026
Agreement between Mol and the Serbian state 10 June 2026; the Serbian state acquires a further 5% stake, Mol guarantees the refinery’s operation Portfolio, 10 June 2026
US licence extensions typically one month; the July one was the seventh reprieve since the start of the year; another month at the beginning of August Balkan Insight, 15 July 2026; HVG / Reuters, 1 August 2026
Serbia’s access to crude oil in July a quarter of the planned volume, due to low Danube water levels HVG, 1 August 2026
Serbian early election 25 October 2026; Vučić resigns on 27 September Euractiv, 26 September 2026
Domestic gas storage stocks more than 4 billion m³ MVM statement, Portfolio, 26 September 2026
The Iranian offer reopening of the Strait of Hormuz within 7 days, in exchange for lifting the blockade and oil sanctions, ceasefire Politico, 26 September 2026
TTF gas price in 2026 compared with the December 2025 assumption approx. 60% higher (as of March 2026) OECD, Economic Outlook, Interim Report, March 2026
Adverse OECD scenario TTF price of 77 euros / MWh in the second quarter of 2026 OECD, Economic Outlook, Interim Report, March 2026

TTF is the Dutch natural gas trading hub, the benchmark for the European gas price. Two remarks belong to the figures. First, the comparison of 318 and 868 euros is Vučić’s own statement. The difference between the contract price and the market price shows exactly why short extensions are in Belgrade’s interest, and why it is hard to take a long-term decision during the Serbian political transition. Second, the domestic storage figure answers the question of volume supply, not that of price or southern fuel supply. Proposals 3.2 and 3.3 therefore call for separate indicators.

6.3 Policy dimensions

  • Foreign policy (programme points) — diplomatic handling of the 30 September deadline towards Washington and Belgrade, the crisis management protocol, resilience of the Western Balkan neighbourhood (programme point ID: KP8, KP7, KP10);
  • Environment and climate (programme points) — energy market shock resilience, diversification, strategic reserve; in the longer term the energy transition as the path to reducing dependence (programme point ID: K7, K2);
  • Economy (programme points) — a pre-set energy price shock preparedness plan with an automatic threshold (programme point ID: G25);
  • Social policy (programme points) — targeted utility support instead of general price support (programme point ID: SZ1).

6.4 Literature in detail

6.4.1 OECD: Economic Outlook Interim Report 2026

The OECD’s March 2026 interim report analyses the energy market shock of the Middle East conflict. It assumed that the TTF gas price would remain around 60 per cent above the December assumption in 2026. As an adverse scenario, it also modelled a gas price of 77 euros/MWh. The report notes that gas markets are tight and European seasonal stocks are depleted. On support policy it says:

“Any new ad hoc measures should be well targeted to the most vulnerable households and viable firms, preserve incentives to reduce energy use, and have a clear expiry mechanism.”

According to the report, the 2022–23 support measures were often poorly targeted and expensive. General support, tax cuts and price caps can be introduced quickly but are expensive and weaken the incentive to save. On the demand side, the primary priority is more efficient energy use. For Hungarian winter preparedness, this means that demand reduction and support are not opposed but belong together. The targeted, threshold-linked and time-limited support proposed in point 3.3 follows exactly this benchmark.

📖 Source: OECD: Economic Outlook, Interim Report — Testing Resilience (March 2026)

6.4.2 European Union: Shared Vision, Common Action

The EU’s 2016 global foreign and security policy strategy treats energy security as the internal and external dimension of the Energy Union. It prescribes that the Union diversify its energy sources, routes and suppliers, particularly in the field of gas. According to the document, binding infrastructure agreements with third countries may affect security of supply within the Union differently. They must therefore be transparent and comply with EU law. Internally, it prescribes the coordinated development of reverse flows, interconnections and LNG infrastructure. On the Western Balkans it writes:

“The challenges of migration, energy security, terrorism and organised crime are shared between the EU, the Western Balkans and Turkey. They can only be addressed together.”

The Serbian gas contract and the NIS affair are a practical test of this principle: a supply disruption in a candidate country directly affects the supply chain of a member state, Hungary. The substitution plan proposed in point 3.2 applies the strategy’s principle of route diversification, and the public scenario sheet proposed in point 3.1 applies its transparency requirement.

📖 Source: European Union: Shared Vision, Common Action: A Stronger Europe — A Global Strategy for the European Union’s Foreign and Security Policy (2016)

6.4.3 OECD: Economic Surveys European Union and Euro Area 2025

The OECD’s 2025 EU survey starts from the fact that the EU has no significant fossil energy resources and relies heavily on imports. After Russia’s war, the world market quickly replaced the loss of Russian imports, but at a high price: cheaper Russian gas was replaced by more expensive Norwegian and American LNG. On the role of the internal market, the report writes:

“During the ensuing energy crisis, the EU internal energy market successfully reallocated scarce energy across EU countries.”

According to the report, security of supply requires closer market integration, while a strictly national approach ignores interdependencies between countries. The Hungarian lesson is twofold. If the southern entry point is lost, supply from other directions and the internal market provide the real reserve, which is why the substitution plan in point 3.2 builds on them. And the Serbian example shows that a cheap Russian contract that lives on short extensions is not stable supply but a recurring risk.

📖 Source: OECD: Economic Surveys: European Union and Euro Area 2025

6.4.4 Valentin Naumescu and Diana-Nicoleta Petrut: Foreign Policy and Diplomacy

In their chapter on economic diplomacy, the authors start from the definition of the British diplomat and economist Nicholas Bayne. According to it, economic diplomacy is the way states conduct their external economic relations: how they make decisions at home, how they negotiate internationally, and how the two interact. The textbook stresses that the foreign ministry cannot act alone in this. Private companies are the main stakeholders in negotiations and often hold the most relevant information. Moreover, companies expanding abroad develop a diplomatic role of their own, and their interests are not always identical to those of their home state. This is exactly the situation in the Mol–NIS deal. The negotiating party is the listed Mol, the sanctions licence is issued by the US authority, the Serbian state is a co-owner, and the Hungarian government is responsible for security of supply and the diplomatic channel. That is why the scenario sheet proposed in point 3.1 sharply separates corporate information (price, terms) from the government’s task (diplomacy, supply). The work is copyrighted, so it appears here only in paraphrase.

📖 Source: Valentin Naumescu and Diana-Nicoleta Petrut: Foreign Policy and Diplomacy — An Introduction (2nd edition)

6.5 International comparison

For winter demand reduction, the 2022 European energy crisis provides the closest model. At the time the EU adopted a voluntary gas demand reduction target for member states. In Germany a federal regulation limited the heating temperature of public buildings, and municipalities decided for themselves on switching off decorative lighting and part of street lighting. There, too, competences were divided: the federal level acted for its own buildings, the local level for its own tasks. In support policy, the OECD interim report highlights Canada and Germany. Canada targeted households in need well but did not preserve the incentive to save. Germany preserved the incentive but provided general, untargeted support. Proposal 3.3 combines the strengths of the two. For handling sanctions deadlines, the Serbian case is itself the example. During the repeated one- to two-month OFAC extensions, Belgrade consulted at political level — with both Moscow and Budapest — before every deadline. According to HVG’s August report, Vučić was preparing to talk to both Putin and Prime Minister Péter Magyar before finalisation. Because of the short cycles, predictability on the Hungarian side can only be ensured with its own, pre-set scenario plan.

Foreign policy

  • KP8 — Economic diplomacy integration
  • KP7 — Foreign policy crisis management protocol
  • KP10 — Regional resilience building

Environment and climate

  • K7 — Energy market shock resilience
  • K2 — Energy transition plan

Economy

  • G25 — Energy price shock preparedness plan

Social policy

  • SZ1 — Targeted support

Proposed new programme point: A public scenario sheet ahead of sanctions and contractual deadlines for decision points affecting the energy supply of neighbouring countries (three outcomes, responsible parties, 72-hour situation report, with respect for corporate business secrets) — for the Foreign policy area.

6.7 List of sources

Press sources (MIAK foreign press monitor, 27 September 2026 — topic 1):

Supplementary press sources (MIAK press monitor, 27 September 2026 — topic 3, and earlier monitors):

Knowledge base references (books):

  • 📖 OECD: Economic Outlook, Interim Report — Testing Resilience (March 2026)
  • 📖 European Union: Shared Vision, Common Action: A Stronger Europe — A Global Strategy for the European Union’s Foreign and Security Policy (2016)
  • 📖 OECD: Economic Surveys: European Union and Euro Area 2025
  • 📖 Valentin Naumescu and Diana-Nicoleta Petrut: Foreign Policy and Diplomacy — An Introduction (2nd edition)

MIAK internal materials:

  • MIAK policy area: Foreign policy (programme points; programme point ID: KP8, KP7, KP10)
  • MIAK policy area: Environment and climate (programme points; programme point ID: K7, K2)
  • MIAK policy area: Economy (programme points; programme point ID: G25)
  • MIAK policy area: Social policy (programme points; programme point ID: SZ1)
  • MIAK foreign press monitor, 27 September 2026 — topic 1, score: 87/100

Supplementary public data sources:

  • Mol Group — stock exchange announcements (Budapest Stock Exchange)
  • The US Treasury’s sanctions office (OFAC) — announcements on the licences concerning NIS
  • ENTSOG Transparency Platform — daily flow data for the Kiskundorozsma entry point
  • GIE AGSI+ — European gas storage filling levels
  • Hungarian Energy and Public Utility Regulatory Authority — price and supply statistics

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