Oil Country Tubular Limited has announced the closure of its trading window for dealing in the company's securities. This closure is in compliance with SEBI (Prohibition of Insider Trading) Regulations, 2015, and the company's internal code of conduct. The trading window will be closed effective from January 01, 2026. It will remain shut until 48 hours after the declaration of the unaudited financial results for the quarter and nine months ended December 31, 2025. The company has formally intimated this closure to the BSE Limited and the National Stock Exchange of India Ltd.