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For centuries, the Black Sea has been a vital crossroads between Europe, Asia, and the Middle East. Today, renewed geopolitical turbulence and the discovery of vast energy resources are turning the region into a sea of opportunity, especially for Romania.

A sea of interests

Amidst competing agendas, the Black Sea’s geoeconomic value has become a constant theme in high-level discussions, with leaders emphasizing its role in shaping Europe’s energy security and autonomy. The recent discovery of significant oil and gas reserves along Romania’s continental shelf has reinvigorated the EU’s ambition to strengthen its independence across global energy chains. If exploration, development, and exploitation are carried out effectively, Bucharest could leverage this abundance as a powerful bargaining chip.

The International Court of Justice ruling on the Ukrainian-Romanian maritime dispute over Snake Island proved pivotal, as Ukraine lost its claim to 9,700 km² [1], and Romania retained almost full rights over the Neptun Deep reservoir, one of the Black Sea’s most promising energy fields. Yet, as Ukraine’s past experience shows, petroleum and gas resources alone are no guarantee of security. The annexation of Crimea and the ongoing war highlight that energy wealth must be matched with resilient regional cooperation. Romania, therefore, faces both an opportunity and a responsibility: to use current demand as a springboard for consolidating collective energy and security frameworks across the Black Sea.

Romania following the sirens’ call

The Black Sea coastline stretches roughly 4,000-4,500 kilometers, unevenly divided among six riparian states: Turkey (34%), Ukraine (31% before Crimea’s annexation in 2014), Russia (15%), Georgia (14%), Bulgaria (7%), and Romania (6%) [2]. While Romania holds the smallest share, length alone does not determine strategic weight. As both scholars and practitioners agree, the basin is and will always be crucial to Bucharest’s outward ambitions.

Beyond its reserves, Romania has long invested in naval and energy infrastructure directed at the Black Sea region. Its portfolio includes refineries, ports, commercial and defensive fleets, extraction sites, industrial hubs, and transport links via the Danube. This extensive network, already in place, allows Romania to scale operations quickly and sustain increased demand.

The Black Sea also connects directly to global energy arteries. According to the U.S. Energy Information Administration (EIA), the Bosphorus Strait remains the primary transit route [3] for Caspian hydrocarbons flowing to the Mediterranean. Ranking among the richest petroleum platforms worldwide, the Caspian sends over 20 million tons of oil annually through the Bosphorus. Any disruption triples transport costs and leaves Southeastern EU states especially vulnerable. Against this backdrop, exploiting Romania’s resources offers a direct and reliable alternative, one that could reduce external dependence within as little as five years.

Neptun Deep, a breeze in the sails

The Neptun Deep project, jointly operated by OMV Petrom and Romgaz, began drilling in March 2025 [4], with estimated reserves of 100 billion cubic meters [5], the field is expected to deliver a plateau production of around 8 bcm annually for nearly a decade [6].

Planned investments include new offshore platforms, submarine infrastructure, maritime production facilities, and 126 kilometres of pipelines, alongside modernization of onshore processing units [7]. For perspective, Neptun Deep alone matches Romania’s current annual production capacity for several years [8], and, if executed properly, it could transform the country into a regional supplier while creating new industrial, economic, and geopolitical leverage.

Navigating against regional currents

Engineering and logistics may be manageable, but governance in the Black Sea remains highly unstable. The region lacks binding directives, robust enforcement mechanisms, or credible guarantors [9], especially as conflicts and disputes often spiral into wider instability, while aggressive postures deter cooperation.

For Romania, unilateral action without bilateral or multilateral backing could carry serious risks: exposure of critical infrastructure, disruption of Exclusive Economic Area access, reputational costs, and fractured supply chains. Proximity to the war in Ukraine only compounds these risks, requiring carefully calibrated policies that advance national objectives without undermining fragile regional balances.

As the EIA stresses [10], uninterrupted shipment routes are essential for energy security, yet the Black Sea remains contested and constrained. Efforts to diversify have already begun with alternative projects such as the Southern Gas Corridor (via TANAP and TAP) [11] and TurkStream, designed to bypass chokepoints like the Bosphorus while deepening interconnections across the region.

The Black Sea Economic Cooperation (BSEC) platform [12], though quieter since the Ukraine war, still offers a forum for dialogue and potential frameworks if all members return to the table. Meanwhile, the EU’s new Strategy for a Stable and Secure Black Sea Region [13], unveiled in May 2025, underscores Brussels’ recognition of the region’s central role. The strategy highlights stronger links between Europe, the South Caucasus, and Central Asia, even hinting at partnerships „beyond.”

Bucharest drawing lines in the sand

At the crossroads of Europe, Romania serves as a critical energy and transport hub, particularly since its infrastructure gives it not only leverage but also responsibility, to adopt predictable policies and invest in long-term stability.

Romania’s National Defence Strategy [14], adopted by the Supreme Council of National Defence, emphasizes strengthening maritime capabilities, particularly those needed to project power across the Black Sea. Nonetheless, effective implementation could establish Romania as a proactive contributor to regional defence while creating a buffer of stability.

At the same time, Romania’s National Natural Gas Transport System [15] connects directly to Western Europe. By channelling resources from the Caspian and Middle East straight to the EU market, it aligns with Brussels’ priorities: diversification, decoupling from volatile suppliers, reducing costs, and cutting emissions.

Eurostat data from Q1 2025 shows that EU energy imports decreased in volume but increased in value, with the United States emerging as the EU’s largest supplier of LNG and petroleum oils [16]. This shift underlines Europe’s dependence on external partners and raises the strategic importance of Romania’s domestic production as a reliable „homegrown” alternative.

With consumption and prices rising, global supply chains strained, and traditional routes eroding, Romania’s Black Sea resources are no longer a distant prospect, they are a pressing policy option. By deepening its role in Euro-Atlantic structures, Bucharest can optimize energy developments, safeguard its own security, and broker stability for its neighbours.

But the tides of the Black Sea remain uncertain. Safeguarding its own energy security, and that of its neighbours, remains Romania’s top priority. But in a region where tides shift quickly, the real test will be whether Bucharest can become the lighthouse guiding Europe through these uncertain waters.

Photo source: PxHere.com.

Notes:

[1] International Court of Justice (2009) Maritime Delimitation in the Black Sea Case. The Hague: ICJ. Available at: https://www.icj-cij.org/case/132

[2] Black Sea Economic Cooperation Organization (2024) Statistical Yearbook 2024. Istanbul: BSEC. Available at: https://www.bsec-organization.org/statistical-data

[3] Energy Information Administration (2024) World Oil Transit Chokepoints. Washington, DC: U.S. EIA. Available at: https://www.eia.gov/international/analysis/special-topics/world-oil-transit-chokepoints

[4] Romania Insider (2025) ‘OMV Petrom prepares to begin drilling at Neptun Deep offshore gas field in Romania’s Black Sea’, Romania Insider, 26 February. Available at: https://www.romania-insider.com

[5] Romgaz (2024) About Neptun Deep Project. Mediaș: S.N.G.N. Romgaz S.A. Available at: https://www.romgaz.ro/neptun-deep

[6] NS Energy Business (2023) Neptun Deep Natural Gas Project, Romanian Black Sea. 6 August. Available at: https://www.nsenergybusiness.com/projects/neptun-deep-natural-gas-project

[7] NS Energy Business (2023) Neptun Deep Natural Gas Project, Romanian Black Sea. 6 August. Available at: https://www.nsenergybusiness.com/projects/neptun-deep-natural-gas-project

[8] Romanian Association of Petroleum Exploitation and Production Companies (2024) Annual Report 2024. Bucharest: ROPEPCA. Available at: https://www.ropepca.ro/publicatii

[9] Oxford Institute for Energy Studies (2023) Romania’s Neptun Deep FID: Can it be a regional game-changer? Oxford: OIES. Available at: https://www.oxfordenergy.org/publications

[10] Energy Information Administration (2024) International Energy Outlook 2024. Washington, DC: U.S. EIA. Available at: https://www.eia.gov/outlooks/ieo

[11] Trans Adriatic Pipeline (2024) Project Overview. Zug: TAP AG. Available at: https://www.tap-ag.com/the-pipeline

[12] Black Sea Economic Cooperation Organization (2024) Energy Security Framework. Istanbul: BSEC. Available at: https://www.bsec-organization.org/areas-of-cooperation/energy

[13] European Commission (2025) EU Strategy for a Stable and Secure Black Sea Region. Brussels: European Commission, May. Available at: https://commission.europa.eu/strategy-and-policy

[14] Romanian Supreme Council of National Defence (2024) National Defence Strategy. Bucharest: CSAT. Available at: https://www.presidency.ro/ro/csat

[15] Romanian National Gas Transmission System Operator (2024) Strategic Development Plan. Bucharest: Transgaz. Available at: https://www.transgaz.ro/plan-de-dezvoltare

[16] Eurostat (2025) EU energy imports: Q1 2025 data. Luxembourg: Eurostat. Available at: https://ec.europa.eu/eurostat/statistics-explained