secondary termglossary / SECONDARY TERM secondary term. Oil & gas. The term of an oil-and-gas lease after production has been established, typically lasting “as long thereafter as oil and gas is produced from the premises.” See HABENDUM CLAUSE; PRIMARY TERM. 词条贡献者 双语律师Natalie,毕业于法国一流的高级翻译学院,擅长翻译各类与监管与政府事务相关的法律文件。