🛠️ Invention or technique

Neft Dashlari (Oil Rocks): an offshore oil city

Neft Daşları (Rocas del Petróleo): ciudad petrolera marina

Date
1949 · confidence medium
Place
Neft Dashlari, Caspian Sea, Azerbaijan
Credited to
Mikhail Kaverochkin and Azneft engineers
Field
Matter & energy

⚠️ Disputed: the sources disagree.

What it is

The first large offshore oil well, drilled in 1949 some 40 km from the coast, and a complex of causeways and platforms extending for kilometres. It is one of the first offshore oil installations out of sight of land.

World priority is disputed: there were wells from piers in California (Summerland, 1896) and in the Gulf of Mexico (Kerr-McGee, 1947, out of sight of land). Neft Dashlari is the first large-scale installation in open sea.

What it led to

  • drilling and production with fixed platforms and steel structures at sea
  • a city with housing, a hospital and a power plant on piles
  • development of the Caspian offshore oil industry
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Sources✓ verified 2026-11-04