• The Neptun Alpha platform — 16,500 tons, 225 meters tall, built by Saipem — is installed in about 120 meters of water and linked by a 160-kilometer pipeline to Tuzla, per OMV Petrom.
• OMV Petrom and state-owned Romgaz each hold 50% of the project, targeted at up to EUR 4 billion in total investment with first gas expected in 2027 — a cost and timeline figure discussed here as analysis, not advice.
• The field's estimated 100 billion cubic meters of recoverable gas is a company reserve estimate; OMV's expected share is about 70,000 barrels of oil equivalent per day once flowing.
• Romania's ambition to become the EU's largest gas producer depends on the field reaching that output on schedule — a projection, not a confirmed production figure.
• Ten wells across the Pelican South and Domino fields still need to be drilled before Neptun Deep reaches its targeted output; installation is one step, not completion.

OMV Petrom installed the 16,500-ton Neptun Alpha production platform in the Black Sea on July 21, 2026, the operator said — a construction milestone, not a production start. The EUR 4 billion Neptun Deep project still needs ten wells drilled before its targeted 2027 first gas, and the company's estimated 100 billion cubic meters of recoverable gas, the basis for Romania's claim to become the EU's largest gas producer, remains an unaudited company projection. This is analysis of publicly stated project data, not advice.

What was installed, and where

OMV Petrom reported that its Saipem 7000 semi-submersible crane vessel set the Neptun Alpha production platform on the Black Sea seabed on July 21, 2026. The structure weighs 16,500 tons, stands 225 meters tall, and is anchored by eight piles each over 2 meters in diameter in about 120 meters of water. A 160-kilometer pipeline will carry gas to an onshore terminal at Tuzla. The jacket was built in Arbatax, Italy; the topsides in Karimun, Indonesia. This is a construction milestone — the platform is not yet producing gas.

Who owns it and what it costs

OMV Petrom and Romania's majority state-owned SNGN ROMGAZ SA each hold a 50% stake in Neptun Deep and split operatorship. OMV Petrom is itself 51.2%-owned by Austria's OMV AG, tying the project to a listed European parent's capital plans. OMV Petrom has targeted total investment of up to EUR 4 billion ($4.56 billion at current rates) across the field's life. That figure is a company target, not an audited final cost — offshore developments of this scale routinely see budget revisions as drilling and commissioning proceed. This cost discussion is analysis, not advice.

The reserve number driving the EU-producer claim

OMV Petrom estimates Neptun Deep holds 100 billion cubic meters of recoverable gas, with the company's own share equating to roughly 70,000 barrels of oil equivalent per day once the field is fully online. OMV Petrom has said that volume could position Romania as the EU's largest natural gas producer — a claim the company is making about its own project, not a verified production statistic. Until wells are drilled and gas is metered flowing to Tuzla, both the reserve estimate and the EU-leadership claim remain projections to be tested against actual output.

What is left before first gas

OMV Petrom's stated timeline targets first gas in 2027, but platform installation is one step in a longer sequence. Ten wells across the Pelican South and Domino fields still need to be drilled, completed and tied back through the new pipeline before the field reaches meaningful output. Offshore schedules of this scale commonly slip on weather, rig availability or commissioning issues; readers should treat 2027 as the operator's target date, not a locked-in production start. This is analysis of publicly stated project data, not advice.