This article argues that integrating Corporate Social Responsibility (CSR) into the contractual framework of the oil and gas industry, specifically through the Good Oilfield Practice (GOP) clause, is a crucial mechanism for enhancing the environmental accountability of contractors. The inherent complexity and high-risk nature of upstream operations, coupled with frequent environmental incidents, necessitate moving beyond mere regulatory compliance towards effective self-regulation and social accountability.

The study employs an analytical-descriptive methodology, based on a qualitative review of international CSR standards, model petroleum contracts, and relevant legal literature. It finds that the traditional GOP clause, historically focused on technical and economic efficiency, possesses inherent flexibility for expansion. CSR provides the substantive principles—such as environmental respect, transparency, and stakeholder engagement—to operationalize a modern interpretation of "good practice. " This integration transforms GOP from a narrow technical metric into a holistic governance tool, where environmental stewardship becomes a core component of contractual performance and operational success.

The conclusion asserts that the oil and gas industry requires adopting CSR as a comprehensive basis for defining effective socio-environmental responsibility. Reformulating the GOP clause to incorporate CSR principles offers a coherent and innovative contractual strategy. This approach not only addresses growing societal expectations but also aligns the long-term interests of the industry with sustainable development goals. For resource-rich countries like Iran, embedding this modernized interpretation into petroleum legislation and contracts can mitigate environmental risks, enhance international credibility, and attract responsible investment.