Casing - OCTG: Market Size & Forecast 2026

The global OCTG casing market reached USD 18.5 billion in 2025 (base year), tracking a 5.3% CAGR through 2032 on the back of sustained upstream drilling investment and a gradual recovery in steel feedstock costs from the 2022-2024 deflation cycle. Hot-rolled steel coil, the primary input, accounts for approximately 72% of finished OCTG casing cost, and US HRC benchmarks firmed to USD 1,155/ST from the sub-USD 700/MT trough of mid-2024. The dominant regulatory overlay for buyers is the 25% Section 301 tariff on Chinese-origin OCTG (effective 10 May 2019) combined with the CBAM definitive regime that entered into force for steel imports on 1 January 2026. Onshore drilling accounts for roughly 55% of OCTG demand; the offshore segment holds 35% and geothermal and other applications make up the remaining 10%. Supplier concentration among the top-4 global OCTG producers (Tenaris, Vallourec, TM

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