Tuna-1 Gas Field

From Global Energy Monitor

The Tuna-1 Gas Field, also called the Sakarya field, is located off the coast of Turkey in the Black Sea.


The map below shows the location of the gas field in the Black Sea, off the coast of Turkey.

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The field was discovered in 2020.[1] Turkey expects gas production to begin in 2023.[2] Access to gas deposits in the Black Sea will enhance Turkey’s negotiating position with Russia over the import of Russian natural gas.[3]

However, according to WoodMackenzie researcher Thomas Purdie, the Black Sea has a unique morphology. “It’s U-shaped, meaning shallow coastline turns to ultra-deep water rapidly,” he said. “The basin center is deep, cold, and highly anoxic. These harsh, challenging conditions require specialist experience, not currently at TPAOs disposal. The Sakarya development will almost be at the deepest limits of the Black Sea. This is an ultra-harsh environment.”[4]

Project Details

  • Operator: TPAO[3]
  • Parent company:
  • Location: Black Sea
  • Coordinates: 42.827, 31.290 (approximate)[5]
  • Reserves: 405 billion cubic meters estimated gas reserves[2]
  • Status: discovered[2]


  1. "Corporate Business Plan" (PDF). Trillion Energy. October 2020.
  2. 2.0 2.1 2.2 Shirkhani, Nassir (October 18, 2020). "Turkey increases Tuna-1 gas catch to 14.3 trillion cubic feet | Upstream Online". Upstream Online.
  3. 3.0 3.1 Bechev, Dimitar (August 28, 2020). "Turkey's Plans to Become a Regional Energy Giant Just Got a Boost". Foreign Policy.
  4. "Turkey's gas find in the Black Sea: How big is this Tuna?". Atlantic Council. September 14, 2020.
  5. "Turkey finds natural gas reserve of 320 billion cubic metres off Black Sea". TRT World. August 21, 2020.